forked from forks/qmk_firmware
Update handwired/frenchdev keyboard (#5443)
This commit is contained in:
parent
76e78e8ca1
commit
c7583d181a
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@ -15,8 +15,7 @@ You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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*/
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#ifndef FRENCHDEV_V1_CONFIG_H
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#pragma once
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#define FRENCHDEV_V1_CONFIG_H
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#include "config_common.h"
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#include "config_common.h"
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@ -81,5 +80,3 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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//#define NO_ACTION_MACRO
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//#define NO_ACTION_MACRO
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//#define NO_ACTION_FUNCTION
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//#define NO_ACTION_FUNCTION
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//#define DEBUG_MATRIX_SCAN_RATE
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//#define DEBUG_MATRIX_SCAN_RATE
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#endif //FRENCHDEV_V1_CONFIG_H
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@ -1,5 +1,26 @@
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#include "frenchdev.h"
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#include "frenchdev.h"
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#include "i2cmaster.h"
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extern inline void frenchdev_board_led_on(void);
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extern inline void frenchdev_led_1_on(void);
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extern inline void frenchdev_led_2_on(void);
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extern inline void frenchdev_led_3_on(void);
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extern inline void frenchdev_led_on(uint8_t led);
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extern inline void frenchdev_board_led_off(void);
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extern inline void frenchdev_led_1_off(void);
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extern inline void frenchdev_led_2_off(void);
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extern inline void frenchdev_led_3_off(void);
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extern inline void frenchdev_led_off(uint8_t led);
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extern inline void frenchdev_led_all_on(void);
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extern inline void frenchdev_led_all_off(void);
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extern inline void frenchdev_led_1_set(uint8_t n);
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extern inline void frenchdev_led_2_set(uint8_t n);
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extern inline void frenchdev_led_3_set(uint8_t n);
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extern inline void frenchdev_led_set(uint8_t led, uint8_t n);
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extern inline void frenchdev_led_all_set(uint8_t n);
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bool i2c_initialized = 0;
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bool i2c_initialized = 0;
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uint8_t mcp23018_status = 0x20;
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uint8_t mcp23018_status = 0x20;
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@ -31,15 +52,15 @@ void frenchdev_blink_all_leds(void)
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frenchdev_led_all_off();
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frenchdev_led_all_off();
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frenchdev_led_all_set(LED_BRIGHTNESS_HI);
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frenchdev_led_all_set(LED_BRIGHTNESS_HI);
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frenchdev_led_1_on();
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frenchdev_led_1_on();
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_delay_ms(50);
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wait_ms(50);
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frenchdev_led_2_on();
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frenchdev_led_2_on();
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_delay_ms(50);
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wait_ms(50);
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frenchdev_led_3_on();
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frenchdev_led_3_on();
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_delay_ms(50);
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wait_ms(50);
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frenchdev_led_1_off();
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frenchdev_led_1_off();
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_delay_ms(50);
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wait_ms(50);
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frenchdev_led_2_off();
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frenchdev_led_2_off();
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_delay_ms(50);
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wait_ms(50);
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frenchdev_led_3_off();
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frenchdev_led_3_off();
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frenchdev_led_all_off();
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frenchdev_led_all_off();
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}
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}
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@ -54,28 +75,28 @@ uint8_t init_mcp23018(void) {
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// cli();
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// cli();
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if (i2c_initialized == 0) {
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if (i2c_initialized == 0) {
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i2c_init(); // on pins D(1,0)
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i2c_init(); // on pins D(1,0)
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i2c_initialized++;
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i2c_initialized = true;;
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_delay_ms(1000);
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wait_ms(1000);
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}
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}
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// set pin direction
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// set pin direction
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// - unused : input : 1
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// - unused : input : 1
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// - input : input : 1
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// - input : input : 1
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// - driving : output : 0
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// - driving : output : 0
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mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out;
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mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(IODIRA); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(IODIRA, I2C_TIMEOUT); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(0b00000000); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(0b00000000, I2C_TIMEOUT); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(0b00111111); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(0b00111111, I2C_TIMEOUT); if (mcp23018_status) goto out;
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i2c_stop();
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i2c_stop();
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// set pull-up
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// set pull-up
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// - unused : on : 1
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// - unused : on : 1
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// - input : on : 1
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// - input : on : 1
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// - driving : off : 0
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// - driving : off : 0
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mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out;
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mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(GPPUA); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(GPPUA, I2C_TIMEOUT); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(0b00000000); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(0b00000000, I2C_TIMEOUT); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(0b00111111); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(0b00111111, I2C_TIMEOUT); if (mcp23018_status) goto out;
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out:
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out:
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i2c_stop();
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i2c_stop();
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@ -84,4 +105,3 @@ out:
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return mcp23018_status;
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return mcp23018_status;
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}
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}
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@ -1,10 +1,9 @@
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#ifndef FRENCHDEV_V1_H
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#pragma once
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#define FRENCHDEV_V1_H
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#include "quantum.h"
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#include "quantum.h"
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#include <stdint.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdbool.h>
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#include "i2cmaster.h"
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#include "i2c_master.h"
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#include <util/delay.h>
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#include <util/delay.h>
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#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
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#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
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@ -24,6 +23,7 @@
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#define OLATB 0x15
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#define OLATB 0x15
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extern uint8_t mcp23018_status;
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extern uint8_t mcp23018_status;
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#define I2C_TIMEOUT 100
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void init_frenchdev(void);
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void init_frenchdev(void);
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void frenchdev_blink_all_leds(void);
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void frenchdev_blink_all_leds(void);
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@ -111,5 +111,3 @@ inline void frenchdev_led_all_set(uint8_t n)
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{ k51, k41, k31, k21, k11, k01 }, \
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{ k51, k41, k31, k21, k11, k01 }, \
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{ k50, k40, k30, k20, k10, KC_NO } \
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{ k50, k40, k30, k20, k10, KC_NO } \
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}
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}
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#endif
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@ -1,178 +0,0 @@
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#ifndef _I2CMASTER_H
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#define _I2CMASTER_H 1
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/*************************************************************************
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* Title: C include file for the I2C master interface
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* (i2cmaster.S or twimaster.c)
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* Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury
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* File: $Id: i2cmaster.h,v 1.10 2005/03/06 22:39:57 Peter Exp $
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* Software: AVR-GCC 3.4.3 / avr-libc 1.2.3
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* Target: any AVR device
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* Usage: see Doxygen manual
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**************************************************************************/
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#ifdef DOXYGEN
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/**
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@defgroup pfleury_ic2master I2C Master library
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@code #include <i2cmaster.h> @endcode
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@brief I2C (TWI) Master Software Library
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Basic routines for communicating with I2C slave devices. This single master
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implementation is limited to one bus master on the I2C bus.
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This I2c library is implemented as a compact assembler software implementation of the I2C protocol
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which runs on any AVR (i2cmaster.S) and as a TWI hardware interface for all AVR with built-in TWI hardware (twimaster.c).
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Since the API for these two implementations is exactly the same, an application can be linked either against the
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software I2C implementation or the hardware I2C implementation.
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Use 4.7k pull-up resistor on the SDA and SCL pin.
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Adapt the SCL and SDA port and pin definitions and eventually the delay routine in the module
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i2cmaster.S to your target when using the software I2C implementation !
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Adjust the CPU clock frequence F_CPU in twimaster.c or in the Makfile when using the TWI hardware implementaion.
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@note
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The module i2cmaster.S is based on the Atmel Application Note AVR300, corrected and adapted
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to GNU assembler and AVR-GCC C call interface.
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Replaced the incorrect quarter period delays found in AVR300 with
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half period delays.
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@author Peter Fleury pfleury@gmx.ch http://jump.to/fleury
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@par API Usage Example
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The following code shows typical usage of this library, see example test_i2cmaster.c
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@code
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#include <i2cmaster.h>
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#define Dev24C02 0xA2 // device address of EEPROM 24C02, see datasheet
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int main(void)
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{
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unsigned char ret;
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i2c_init(); // initialize I2C library
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// write 0x75 to EEPROM address 5 (Byte Write)
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i2c_start_wait(Dev24C02+I2C_WRITE); // set device address and write mode
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i2c_write(0x05); // write address = 5
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i2c_write(0x75); // write value 0x75 to EEPROM
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i2c_stop(); // set stop conditon = release bus
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// read previously written value back from EEPROM address 5
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i2c_start_wait(Dev24C02+I2C_WRITE); // set device address and write mode
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i2c_write(0x05); // write address = 5
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i2c_rep_start(Dev24C02+I2C_READ); // set device address and read mode
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ret = i2c_readNak(); // read one byte from EEPROM
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i2c_stop();
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for(;;);
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}
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@endcode
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*/
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#endif /* DOXYGEN */
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/**@{*/
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#if (__GNUC__ * 100 + __GNUC_MINOR__) < 304
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#error "This library requires AVR-GCC 3.4 or later, update to newer AVR-GCC compiler !"
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#endif
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#include <avr/io.h>
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/** defines the data direction (reading from I2C device) in i2c_start(),i2c_rep_start() */
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#define I2C_READ 1
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/** defines the data direction (writing to I2C device) in i2c_start(),i2c_rep_start() */
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#define I2C_WRITE 0
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/**
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@brief initialize the I2C master interace. Need to be called only once
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@param void
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@return none
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*/
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extern void i2c_init(void);
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/**
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@brief Terminates the data transfer and releases the I2C bus
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@param void
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@return none
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*/
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extern void i2c_stop(void);
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/**
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@brief Issues a start condition and sends address and transfer direction
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@param addr address and transfer direction of I2C device
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@retval 0 device accessible
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@retval 1 failed to access device
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*/
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extern unsigned char i2c_start(unsigned char addr);
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/**
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@brief Issues a repeated start condition and sends address and transfer direction
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@param addr address and transfer direction of I2C device
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@retval 0 device accessible
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@retval 1 failed to access device
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*/
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extern unsigned char i2c_rep_start(unsigned char addr);
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/**
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@brief Issues a start condition and sends address and transfer direction
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If device is busy, use ack polling to wait until device ready
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@param addr address and transfer direction of I2C device
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@return none
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*/
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extern void i2c_start_wait(unsigned char addr);
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/**
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@brief Send one byte to I2C device
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@param data byte to be transfered
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@retval 0 write successful
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@retval 1 write failed
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*/
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extern unsigned char i2c_write(unsigned char data);
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/**
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@brief read one byte from the I2C device, request more data from device
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@return byte read from I2C device
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*/
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extern unsigned char i2c_readAck(void);
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/**
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@brief read one byte from the I2C device, read is followed by a stop condition
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@return byte read from I2C device
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*/
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extern unsigned char i2c_readNak(void);
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/**
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@brief read one byte from the I2C device
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Implemented as a macro, which calls either i2c_readAck or i2c_readNak
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@param ack 1 send ack, request more data from device<br>
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0 send nak, read is followed by a stop condition
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@return byte read from I2C device
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*/
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extern unsigned char i2c_read(unsigned char ack);
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#define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak();
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/**@}*/
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#endif
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@ -1,5 +1,4 @@
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#include QMK_KEYBOARD_H
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#include QMK_KEYBOARD_H
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#include "mousekey.h"
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#include "keymap_bepo.h"
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#include "keymap_bepo.h"
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@ -14,7 +13,7 @@
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#define KEY_DELAY 130
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#define KEY_DELAY 130
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enum macros {
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enum macros {
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M_LP, // left pedal
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M_LP = SAFE_RANGE, // left pedal
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M_RP, // right pedal
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M_RP, // right pedal
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M_SF, // shift
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M_SF, // shift
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M_SFS, // shift and space
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M_SFS, // shift and space
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@ -63,19 +62,18 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
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* |------+------| / |------| , | space|------|------|------ .. ------|------|------| L1/sp| LEFT |------| UP |------+------| *
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* |------+------| / |------| , | space|------|------|------ .. ------|------|------| L1/sp| LEFT |------| UP |------+------| *
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* | CTRL | win |------/ \-------------| L1 | alt | .. | CAPS | L1 |-------------/ \------| : | CTRL | *
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* | CTRL | win |------/ \-------------| L1 | alt | .. | CAPS | L1 |-------------/ \------| : | CTRL | *
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* `-------------/ \-------------/ .. \-------------/ \-------------/ *
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* `-------------/ \-------------/ .. \-------------/ \-------------/ *
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*M(M_LP)
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*/
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*/
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[_BASE] = LAYOUT(
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[_BASE] = LAYOUT(
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KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, \
|
KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, \
|
||||||
KC_ESC, BP_DQOT, BP_LGIL, BP_RGIL, BP_LPRN, BP_RPRN, BP_DTRM, BP_DCRC, BP_AT, BP_PLUS, BP_MINS, BP_SLSH, BP_ASTR, KC_BSPC, \
|
KC_ESC, BP_DQOT, BP_LGIL, BP_RGIL, BP_LPRN, BP_RPRN, BP_DTRM, BP_DCRC, BP_AT, BP_PLUS, BP_MINS, BP_SLSH, BP_ASTR, KC_BSPC, \
|
||||||
KC_TAB, BP_B, BP_ECUT, BP_O, BP_P, BP_EGRV, BP_UNDS, BP_EQL, BP_K, BP_V, BP_D, BP_L, BP_J, KC_ENT, \
|
KC_TAB, BP_B, BP_ECUT, BP_O, BP_P, BP_EGRV, BP_UNDS, BP_EQL, BP_K, BP_V, BP_D, BP_L, BP_J, KC_ENT, \
|
||||||
BP_GRV, BP_A, BP_U, BP_E, BP_I, BP_F, BP_SCLN, BP_EXLM, BP_C, BP_T, BP_S, BP_R, BP_N, BP_APOS, \
|
BP_GRV, BP_A, BP_U, BP_E, BP_I, BP_F, BP_SCLN, BP_EXLM, BP_C, BP_T, BP_S, BP_R, BP_N, BP_APOS, \
|
||||||
M(M_SF), BP_Z, BP_AGRV, BP_Y, BP_X, KC_RBRACKET, M(M_SFS), BP_CBSP, M(L2INS), M(L2LOC), BP_CDEL, M(M_SFS),BP_M, BP_G, KC_UP, BP_H, BP_Q, M(M_SF), \
|
M_SF, BP_Z, BP_AGRV, BP_Y, BP_X, KC_RBRC, M_SFS, BP_CBSP, L2INS, L2LOC, BP_CDEL, M_SFS, BP_M, BP_G, KC_UP, BP_H, BP_Q, M_SF, \
|
||||||
KC_LCTL, KC_LGUI, KC_PSLS, BP_DOT, BP_COMM, KC_SPACE,M(M_L1E), KC_LALT, KC_CAPS, M(M_L1E),KC_SPACE,KC_LEFT, KC_DOWN, KC_RIGHT,BP_COLN, KC_RCTL, \
|
KC_LCTL, KC_LGUI, KC_PSLS, BP_DOT, BP_COMM, KC_SPACE,M_L1E, KC_LALT, KC_CAPS, M_L1E, KC_SPACE, KC_LEFT, KC_DOWN, KC_RIGHT,BP_COLN, KC_RCTL, \
|
||||||
//left pedals
|
//left pedals
|
||||||
M(M_LP), M(M_RP), KC_TRNS, \
|
M_LP, M_RP, KC_TRNS, \
|
||||||
//right pedals
|
//right pedals
|
||||||
M(M_LP), M(M_RP), KC_TRNS \
|
M_LP, M_RP, KC_TRNS \
|
||||||
),
|
),
|
||||||
|
|
||||||
/* Larer 1 for symbols.
|
/* Larer 1 for symbols.
|
||||||
|
@ -102,7 +100,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
|
||||||
KC_TRNS, BP_DCUR, BP_PARG, BP_SECT, BP_DGRK, KC_TRNS, BP_TILD, BP_DCAR, BP_LEQL, BP_GEQL, BP_PSMS, BP_OBEL, BP_TIMS, KC_TRNS, \
|
KC_TRNS, BP_DCUR, BP_PARG, BP_SECT, BP_DGRK, KC_TRNS, BP_TILD, BP_DCAR, BP_LEQL, BP_GEQL, BP_PSMS, BP_OBEL, BP_TIMS, KC_TRNS, \
|
||||||
KC_TRNS, BP_BSLS, BP_ASTR, BP_LCBR, BP_RCBR, BP_GRV, KC_TRNS, BP_DIFF, BP_HASH, BP_LBRC, BP_RBRC, BP_PERC, BP_PMIL, KC_TRNS, \
|
KC_TRNS, BP_BSLS, BP_ASTR, BP_LCBR, BP_RCBR, BP_GRV, KC_TRNS, BP_DIFF, BP_HASH, BP_LBRC, BP_RBRC, BP_PERC, BP_PMIL, KC_TRNS, \
|
||||||
KC_TRNS, BP_EQL, BP_UGRV, BP_LPRN, BP_RPRN, BP_PLUS, BP_COLN, BP_QEST, BP_CCED, BP_LESS, BP_GRTR, BP_AMPR, BP_UNDS, KC_TRNS, \
|
KC_TRNS, BP_EQL, BP_UGRV, BP_LPRN, BP_RPRN, BP_PLUS, BP_COLN, BP_QEST, BP_CCED, BP_LESS, BP_GRTR, BP_AMPR, BP_UNDS, KC_TRNS, \
|
||||||
KC_TRNS, M(M_UN), M(M_CUT),M(M_CP), M(M_PS), M(M_SE), KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, BP_DLR, BP_EQL, KC_PGUP, BP_PIPE, BP_SLSH, KC_TRNS, \
|
KC_TRNS, M_UN, M_CUT, M_CP, M_PS, M_SE, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, BP_DLR, BP_EQL, KC_PGUP, BP_PIPE, BP_SLSH, KC_TRNS, \
|
||||||
KC_TRNS, KC_TRNS, BP_BSLS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_HOME, KC_PGDN, KC_END, KC_TRNS, KC_TRNS, \
|
KC_TRNS, KC_TRNS, BP_BSLS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_HOME, KC_PGDN, KC_END, KC_TRNS, KC_TRNS, \
|
||||||
//left pedals
|
//left pedals
|
||||||
KC_TRNS, KC_BTN1, KC_TRNS, \
|
KC_TRNS, KC_BTN1, KC_TRNS, \
|
||||||
|
@ -134,12 +132,12 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
|
||||||
KC_TRNS, KC_TRNS, KC_TRNS, KC_MSTP, KC_MPRV, KC_MNXT, KC_MPLY, KC_MPLY, KC_MPRV, KC_MNXT, KC_MSTP, KC_TRNS, KC_PMNS, KC_TRNS, \
|
KC_TRNS, KC_TRNS, KC_TRNS, KC_MSTP, KC_MPRV, KC_MNXT, KC_MPLY, KC_MPLY, KC_MPRV, KC_MNXT, KC_MSTP, KC_TRNS, KC_PMNS, KC_TRNS, \
|
||||||
KC_TRNS, KC_TRNS, KC_TRNS, KC_WH_U, KC_TRNS, KC_BTN4, KC_BTN5, KC_BTN4, KC_BTN5, KC_KP_7, KC_KP_8, KC_KP_9, KC_PPLS, KC_TRNS, \
|
KC_TRNS, KC_TRNS, KC_TRNS, KC_WH_U, KC_TRNS, KC_BTN4, KC_BTN5, KC_BTN4, KC_BTN5, KC_KP_7, KC_KP_8, KC_KP_9, KC_PPLS, KC_TRNS, \
|
||||||
KC_TRNS, KC_TRNS, KC_TRNS, KC_WH_D, KC_BTN3, KC_BTN2, KC_BTN1, KC_BTN1, KC_BTN2, KC_KP_4, KC_KP_5, KC_KP_6, KC_PAST, KC_TRNS, \
|
KC_TRNS, KC_TRNS, KC_TRNS, KC_WH_D, KC_BTN3, KC_BTN2, KC_BTN1, KC_BTN1, KC_BTN2, KC_KP_4, KC_KP_5, KC_KP_6, KC_PAST, KC_TRNS, \
|
||||||
KC_TRNS, M(M_UN), M(M_CUT),M(M_CP), M(M_PS), KC_BTN3, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_BTN3, KC_KP_1, KC_KP_2, KC_KP_3, KC_PSLS, KC_TRNS, \
|
KC_TRNS, M_UN, M_CUT, M_CP, M_PS, KC_BTN3, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_BTN3, KC_KP_1, KC_KP_2, KC_KP_3, KC_PSLS, KC_TRNS, \
|
||||||
KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_KP_0, KC_PDOT, BP_DOT, BP_COMM, KC_TRNS, \
|
KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_KP_0, KC_PDOT, BP_DOT, BP_COMM, KC_TRNS, \
|
||||||
//left pedals
|
//left pedals
|
||||||
KC_BTN3, M(M_RP), KC_TRNS, \
|
KC_BTN3, M_RP, KC_TRNS, \
|
||||||
//right pedals
|
//right pedals
|
||||||
KC_BTN3, M(M_RP), KC_TRNS \
|
KC_BTN3, M_RP, KC_TRNS \
|
||||||
),
|
),
|
||||||
|
|
||||||
/* TRNS - skeleton for laters
|
/* TRNS - skeleton for laters
|
||||||
|
@ -169,9 +167,9 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
|
||||||
KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, \
|
KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, \
|
||||||
KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, \
|
KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, \
|
||||||
//left pedals
|
//left pedals
|
||||||
KC_BTN3, M(M_RP), KC_TRNS, \
|
KC_BTN3, M_RP, KC_TRNS, \
|
||||||
//right pedals
|
//right pedals
|
||||||
KC_BTN3, M(M_RP), KC_TRNS \
|
KC_BTN3, M_RP, KC_TRNS \
|
||||||
),
|
),
|
||||||
|
|
||||||
};
|
};
|
||||||
|
@ -191,28 +189,52 @@ void release_shift(void) {
|
||||||
|
|
||||||
void press_space(void) {
|
void press_space(void) {
|
||||||
if(shift_count > 0) unregister_code (KC_LSHIFT);
|
if(shift_count > 0) unregister_code (KC_LSHIFT);
|
||||||
register_code (KC_SPACE);
|
tap_code(KC_SPACE);
|
||||||
unregister_code (KC_SPACE);
|
|
||||||
if(shift_count > 0) register_code (KC_LSHIFT);
|
if(shift_count > 0) register_code (KC_LSHIFT);
|
||||||
}
|
}
|
||||||
|
|
||||||
void press_enter(void) {
|
void press_enter(void) {
|
||||||
if(shift_count > 0) unregister_code (KC_LSHIFT);
|
if(shift_count > 0) unregister_code (KC_LSHIFT);
|
||||||
register_code (KC_ENT);
|
tap_code (KC_ENT);
|
||||||
unregister_code (KC_ENT);
|
|
||||||
if(shift_count > 0) register_code (KC_LSHIFT);
|
if(shift_count > 0) register_code (KC_LSHIFT);
|
||||||
}
|
}
|
||||||
|
|
||||||
void press_underscore(void) {
|
void press_underscore(void) {
|
||||||
if(shift_count > 0) unregister_code (KC_LSHIFT);
|
if(shift_count > 0) unregister_code (KC_LSHIFT);
|
||||||
register_code ((unsigned char) BP_UNDS);
|
tap_code ((unsigned char) BP_UNDS);
|
||||||
unregister_code ((unsigned char) BP_UNDS);
|
|
||||||
if(shift_count > 0) register_code (KC_LSHIFT);
|
if(shift_count > 0) register_code (KC_LSHIFT);
|
||||||
}
|
}
|
||||||
|
|
||||||
const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
|
void matrix_init_user(void) {
|
||||||
{
|
}
|
||||||
switch(id) {
|
|
||||||
|
// Bleah globals need to be initialized.
|
||||||
|
uint8_t old_layer=_BASE;
|
||||||
|
|
||||||
|
void matrix_scan_user(void) {
|
||||||
|
uint8_t layer = biton32(layer_state);
|
||||||
|
|
||||||
|
frenchdev_led_1_off();
|
||||||
|
frenchdev_led_2_off();
|
||||||
|
switch (layer) {
|
||||||
|
case _BASE:
|
||||||
|
frenchdev_led_2_on();
|
||||||
|
break;
|
||||||
|
case _SYMBOLS:
|
||||||
|
frenchdev_led_1_on();
|
||||||
|
break;
|
||||||
|
case _MEDIA:
|
||||||
|
frenchdev_led_1_on();
|
||||||
|
frenchdev_led_2_on();
|
||||||
|
default:
|
||||||
|
// none
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
bool process_record_user(uint16_t keycode, keyrecord_t *record) {
|
||||||
|
switch(keycode) {
|
||||||
case M_LP: //left pedal
|
case M_LP: //left pedal
|
||||||
if (record->event.pressed) {
|
if (record->event.pressed) {
|
||||||
layer_on(1);
|
layer_on(1);
|
||||||
|
@ -220,25 +242,19 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
|
||||||
key_timer_left_pedal = timer_read(); // if the key is being pressed, we start the timer.
|
key_timer_left_pedal = timer_read(); // if the key is being pressed, we start the timer.
|
||||||
} else {
|
} else {
|
||||||
if (timer_elapsed(key_timer_left_pedal) < KEY_DELAY) {
|
if (timer_elapsed(key_timer_left_pedal) < KEY_DELAY) {
|
||||||
mousekey_on (KC_BTN2);
|
tap_code (KC_BTN2);
|
||||||
mousekey_send();
|
|
||||||
mousekey_off (KC_BTN2);
|
|
||||||
mousekey_send();
|
|
||||||
}
|
}
|
||||||
unregister_code (KC_SLCK);
|
unregister_code (KC_SLCK);
|
||||||
layer_off(1);
|
layer_off(1);
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
case M_RP: //right pedal
|
case M_RP: //right pedal
|
||||||
if (record->event.pressed) {
|
if (record->event.pressed) {
|
||||||
layer_on(2);
|
layer_on(2);
|
||||||
key_timer_right_pedal = timer_read(); // if the key is being pressed, we start the timer.
|
key_timer_right_pedal = timer_read(); // if the key is being pressed, we start the timer.
|
||||||
} else {
|
} else {
|
||||||
if (timer_elapsed(key_timer_right_pedal) < PEDAL_DELAY) {
|
if (timer_elapsed(key_timer_right_pedal) < PEDAL_DELAY) {
|
||||||
mousekey_on (KC_BTN1);
|
tap_code (KC_BTN1);
|
||||||
mousekey_send();
|
|
||||||
mousekey_off (KC_BTN1);
|
|
||||||
mousekey_send();
|
|
||||||
}
|
}
|
||||||
layer_off(2);
|
layer_off(2);
|
||||||
}
|
}
|
||||||
|
@ -289,13 +305,12 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
|
||||||
key_timer_2 = timer_read(); // if the key is being pressed, we start the timer.
|
key_timer_2 = timer_read(); // if the key is being pressed, we start the timer.
|
||||||
} else {
|
} else {
|
||||||
if (timer_elapsed(key_timer_2) < KEY_DELAY) {
|
if (timer_elapsed(key_timer_2) < KEY_DELAY) {
|
||||||
register_code (KC_INS);
|
tap_code (KC_INS);
|
||||||
unregister_code (KC_INS);
|
|
||||||
}
|
}
|
||||||
l2_locked = 0;
|
l2_locked = 0;
|
||||||
layer_off(2);
|
layer_off(2);
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
case L2LOC: //lock L2
|
case L2LOC: //lock L2
|
||||||
if (record->event.pressed) {
|
if (record->event.pressed) {
|
||||||
key_timer_2 = timer_read(); // if the key is being pressed, we start the timer.
|
key_timer_2 = timer_read(); // if the key is being pressed, we start the timer.
|
||||||
|
@ -309,80 +324,33 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
|
||||||
layer_off(2);
|
layer_off(2);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
case M_UN: // undo
|
case M_UN: // undo
|
||||||
if (record->event.pressed) {
|
if (record->event.pressed) {
|
||||||
register_code(KC_LCTL);
|
tap_code16(C(BP_Z));
|
||||||
register_code(BP_Z);
|
|
||||||
unregister_code(BP_Z);
|
|
||||||
unregister_code(KC_LCTL);
|
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
case M_CUT: // cut
|
case M_CUT: // cut
|
||||||
if (record->event.pressed) {
|
if (record->event.pressed) {
|
||||||
register_code(KC_LCTL);
|
tap_code16(C(BP_X));
|
||||||
register_code(BP_X);
|
|
||||||
unregister_code(BP_X);
|
|
||||||
unregister_code(KC_LCTL);
|
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
case M_CP: // copy
|
case M_CP: // copy
|
||||||
if (record->event.pressed) {
|
if (record->event.pressed) {
|
||||||
register_code(KC_LCTL);
|
tap_code16(C(BP_C));
|
||||||
register_code(BP_C);
|
|
||||||
unregister_code(BP_C);
|
|
||||||
unregister_code(KC_LCTL);
|
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
case M_PS: // paste
|
case M_PS: // paste
|
||||||
if (record->event.pressed) {
|
if (record->event.pressed) {
|
||||||
register_code(KC_LCTL);
|
tap_code16(C(BP_V));
|
||||||
register_code(BP_V);
|
|
||||||
unregister_code(BP_V);
|
|
||||||
unregister_code(KC_LCTL);
|
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
case M_SE: // search
|
case M_SE: // search
|
||||||
if (record->event.pressed) {
|
if (record->event.pressed) {
|
||||||
register_code(KC_LCTL);
|
tap_code16(C(BP_F));
|
||||||
register_code(BP_F);
|
|
||||||
unregister_code(BP_F);
|
|
||||||
unregister_code(KC_LCTL);
|
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
return MACRO_NONE;
|
|
||||||
};
|
|
||||||
|
|
||||||
void matrix_init_user(void) {
|
|
||||||
}
|
|
||||||
|
|
||||||
// Bleah globals need to be initialized.
|
|
||||||
uint8_t old_layer=_BASE;
|
|
||||||
|
|
||||||
void matrix_scan_user(void) {
|
|
||||||
uint8_t layer = biton32(layer_state);
|
|
||||||
|
|
||||||
frenchdev_led_1_off();
|
|
||||||
frenchdev_led_2_off();
|
|
||||||
switch (layer) {
|
|
||||||
case _BASE:
|
|
||||||
frenchdev_led_2_on();
|
|
||||||
break;
|
|
||||||
case _SYMBOLS:
|
|
||||||
frenchdev_led_1_on();
|
|
||||||
break;
|
|
||||||
case _MEDIA:
|
|
||||||
frenchdev_led_1_on();
|
|
||||||
frenchdev_led_2_on();
|
|
||||||
default:
|
|
||||||
// none
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
bool process_record_user(uint16_t keycode, keyrecord_t *record) {
|
|
||||||
return true;
|
return true;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
@ -40,7 +40,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
#include "util.h"
|
#include "util.h"
|
||||||
#include "matrix.h"
|
#include "matrix.h"
|
||||||
#include "frenchdev.h"
|
#include "frenchdev.h"
|
||||||
#include "i2cmaster.h"
|
|
||||||
#ifdef DEBUG_MATRIX_SCAN_RATE
|
#ifdef DEBUG_MATRIX_SCAN_RATE
|
||||||
#include "timer.h"
|
#include "timer.h"
|
||||||
#endif
|
#endif
|
||||||
|
@ -280,11 +279,12 @@ static matrix_row_t read_cols(uint8_t row)
|
||||||
return 0;
|
return 0;
|
||||||
} else {
|
} else {
|
||||||
uint8_t data = 0;
|
uint8_t data = 0;
|
||||||
mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out;
|
mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (mcp23018_status) goto out;
|
||||||
mcp23018_status = i2c_write(GPIOB); if (mcp23018_status) goto out;
|
mcp23018_status = i2c_write(GPIOB, I2C_TIMEOUT); if (mcp23018_status) goto out;
|
||||||
mcp23018_status = i2c_start(I2C_ADDR_READ); if (mcp23018_status) goto out;
|
mcp23018_status = i2c_start(I2C_ADDR_READ, I2C_TIMEOUT); if (mcp23018_status) goto out;
|
||||||
data = i2c_readNak();
|
data = i2c_read_nack(I2C_TIMEOUT); if (mcp23018_status < 0) goto out;
|
||||||
data = ~data;
|
data = ~((uint8_t)mcp23018_status);
|
||||||
|
mcp23018_status = I2C_STATUS_SUCCESS;
|
||||||
out:
|
out:
|
||||||
i2c_stop();
|
i2c_stop();
|
||||||
return data;
|
return data;
|
||||||
|
@ -318,11 +318,9 @@ static void unselect_rows(void)
|
||||||
// do nothing
|
// do nothing
|
||||||
} else {
|
} else {
|
||||||
// set all rows hi-Z : 1
|
// set all rows hi-Z : 1
|
||||||
mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out;
|
mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (mcp23018_status) goto out;
|
||||||
mcp23018_status = i2c_write(GPIOA); if (mcp23018_status) goto out;
|
mcp23018_status = i2c_write(GPIOA, I2C_TIMEOUT); if (mcp23018_status) goto out;
|
||||||
mcp23018_status = i2c_write( 0xFF
|
mcp23018_status = i2c_write( 0xFF & ~(0<<8), I2C_TIMEOUT); if (mcp23018_status) goto out;
|
||||||
& ~(0<<8)
|
|
||||||
); if (mcp23018_status) goto out;
|
|
||||||
out:
|
out:
|
||||||
i2c_stop();
|
i2c_stop();
|
||||||
}
|
}
|
||||||
|
@ -346,11 +344,9 @@ static void select_row(uint8_t row)
|
||||||
} else {
|
} else {
|
||||||
// set active row low : 0
|
// set active row low : 0
|
||||||
// set other rows hi-Z : 1
|
// set other rows hi-Z : 1
|
||||||
mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out;
|
mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (mcp23018_status) goto out;
|
||||||
mcp23018_status = i2c_write(GPIOA); if (mcp23018_status) goto out;
|
mcp23018_status = i2c_write(GPIOA, I2C_TIMEOUT); if (mcp23018_status) goto out;
|
||||||
mcp23018_status = i2c_write( 0xFF & ~(1<<row)
|
mcp23018_status = i2c_write( 0xFF & ~(1<<row) & ~(0<<8), I2C_TIMEOUT); if (mcp23018_status) goto out;
|
||||||
& ~(0<<8)
|
|
||||||
); if (mcp23018_status) goto out;
|
|
||||||
out:
|
out:
|
||||||
i2c_stop();
|
i2c_stop();
|
||||||
}
|
}
|
||||||
|
@ -393,4 +389,3 @@ static void select_row(uint8_t row)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
@ -15,7 +15,7 @@
|
||||||
#----------------------------------------------------------------------------
|
#----------------------------------------------------------------------------
|
||||||
|
|
||||||
# # project specific files
|
# # project specific files
|
||||||
SRC = twimaster.c \
|
SRC = i2c_master.c \
|
||||||
matrix.c
|
matrix.c
|
||||||
|
|
||||||
# MCU name
|
# MCU name
|
||||||
|
@ -64,8 +64,7 @@ OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
|
||||||
# Atmel DFU loader 4096
|
# Atmel DFU loader 4096
|
||||||
# LUFA bootloader 4096
|
# LUFA bootloader 4096
|
||||||
# USBaspLoader 2048
|
# USBaspLoader 2048
|
||||||
OPT_DEFS += -DBOOTLOADER_SIZE=512
|
BOOTLOADER = halfKay
|
||||||
|
|
||||||
|
|
||||||
# Build Options
|
# Build Options
|
||||||
# comment out to disable the options.
|
# comment out to disable the options.
|
||||||
|
@ -86,4 +85,3 @@ BLUETOOTH_ENABLE = no # Enable Bluetooth with the Adafruit EZ-Key HID
|
||||||
AUDIO_ENABLE = no # Audio output on port C6
|
AUDIO_ENABLE = no # Audio output on port C6
|
||||||
RGBLIGHT_ENABLE = no
|
RGBLIGHT_ENABLE = no
|
||||||
API_SYSEX_ENABLE = no
|
API_SYSEX_ENABLE = no
|
||||||
|
|
||||||
|
|
|
@ -1,208 +0,0 @@
|
||||||
/*************************************************************************
|
|
||||||
* Title: I2C master library using hardware TWI interface
|
|
||||||
* Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury
|
|
||||||
* File: $Id: twimaster.c,v 1.3 2005/07/02 11:14:21 Peter Exp $
|
|
||||||
* Software: AVR-GCC 3.4.3 / avr-libc 1.2.3
|
|
||||||
* Target: any AVR device with hardware TWI
|
|
||||||
* Usage: API compatible with I2C Software Library i2cmaster.h
|
|
||||||
**************************************************************************/
|
|
||||||
#include <inttypes.h>
|
|
||||||
#include <compat/twi.h>
|
|
||||||
|
|
||||||
#include <i2cmaster.h>
|
|
||||||
|
|
||||||
|
|
||||||
/* define CPU frequency in Mhz here if not defined in Makefile */
|
|
||||||
#ifndef F_CPU
|
|
||||||
#define F_CPU 16000000UL
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/* I2C clock in Hz */
|
|
||||||
#define SCL_CLOCK 400000L
|
|
||||||
|
|
||||||
|
|
||||||
/*************************************************************************
|
|
||||||
Initialization of the I2C bus interface. Need to be called only once
|
|
||||||
*************************************************************************/
|
|
||||||
void i2c_init(void)
|
|
||||||
{
|
|
||||||
/* initialize TWI clock
|
|
||||||
* minimal values in Bit Rate Register (TWBR) and minimal Prescaler
|
|
||||||
* bits in the TWI Status Register should give us maximal possible
|
|
||||||
* I2C bus speed - about 444 kHz
|
|
||||||
*
|
|
||||||
* for more details, see 20.5.2 in ATmega16/32 secification
|
|
||||||
*/
|
|
||||||
|
|
||||||
TWSR = 0; /* no prescaler */
|
|
||||||
TWBR = 10; /* must be >= 10 for stable operation */
|
|
||||||
|
|
||||||
}/* i2c_init */
|
|
||||||
|
|
||||||
|
|
||||||
/*************************************************************************
|
|
||||||
Issues a start condition and sends address and transfer direction.
|
|
||||||
return 0 = device accessible, 1= failed to access device
|
|
||||||
*************************************************************************/
|
|
||||||
unsigned char i2c_start(unsigned char address)
|
|
||||||
{
|
|
||||||
uint8_t twst;
|
|
||||||
|
|
||||||
// send START condition
|
|
||||||
TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
|
|
||||||
|
|
||||||
// wait until transmission completed
|
|
||||||
while(!(TWCR & (1<<TWINT)));
|
|
||||||
|
|
||||||
// check value of TWI Status Register. Mask prescaler bits.
|
|
||||||
twst = TW_STATUS & 0xF8;
|
|
||||||
if ( (twst != TW_START) && (twst != TW_REP_START)) return 1;
|
|
||||||
|
|
||||||
// send device address
|
|
||||||
TWDR = address;
|
|
||||||
TWCR = (1<<TWINT) | (1<<TWEN);
|
|
||||||
|
|
||||||
// wail until transmission completed and ACK/NACK has been received
|
|
||||||
while(!(TWCR & (1<<TWINT)));
|
|
||||||
|
|
||||||
// check value of TWI Status Register. Mask prescaler bits.
|
|
||||||
twst = TW_STATUS & 0xF8;
|
|
||||||
if ( (twst != TW_MT_SLA_ACK) && (twst != TW_MR_SLA_ACK) ) return 1;
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
|
|
||||||
}/* i2c_start */
|
|
||||||
|
|
||||||
|
|
||||||
/*************************************************************************
|
|
||||||
Issues a start condition and sends address and transfer direction.
|
|
||||||
If device is busy, use ack polling to wait until device is ready
|
|
||||||
|
|
||||||
Input: address and transfer direction of I2C device
|
|
||||||
*************************************************************************/
|
|
||||||
void i2c_start_wait(unsigned char address)
|
|
||||||
{
|
|
||||||
uint8_t twst;
|
|
||||||
|
|
||||||
|
|
||||||
while ( 1 )
|
|
||||||
{
|
|
||||||
// send START condition
|
|
||||||
TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
|
|
||||||
|
|
||||||
// wait until transmission completed
|
|
||||||
while(!(TWCR & (1<<TWINT)));
|
|
||||||
|
|
||||||
// check value of TWI Status Register. Mask prescaler bits.
|
|
||||||
twst = TW_STATUS & 0xF8;
|
|
||||||
if ( (twst != TW_START) && (twst != TW_REP_START)) continue;
|
|
||||||
|
|
||||||
// send device address
|
|
||||||
TWDR = address;
|
|
||||||
TWCR = (1<<TWINT) | (1<<TWEN);
|
|
||||||
|
|
||||||
// wail until transmission completed
|
|
||||||
while(!(TWCR & (1<<TWINT)));
|
|
||||||
|
|
||||||
// check value of TWI Status Register. Mask prescaler bits.
|
|
||||||
twst = TW_STATUS & 0xF8;
|
|
||||||
if ( (twst == TW_MT_SLA_NACK )||(twst ==TW_MR_DATA_NACK) )
|
|
||||||
{
|
|
||||||
/* device busy, send stop condition to terminate write operation */
|
|
||||||
TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
|
|
||||||
|
|
||||||
// wait until stop condition is executed and bus released
|
|
||||||
while(TWCR & (1<<TWSTO));
|
|
||||||
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
//if( twst != TW_MT_SLA_ACK) return 1;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
}/* i2c_start_wait */
|
|
||||||
|
|
||||||
|
|
||||||
/*************************************************************************
|
|
||||||
Issues a repeated start condition and sends address and transfer direction
|
|
||||||
|
|
||||||
Input: address and transfer direction of I2C device
|
|
||||||
|
|
||||||
Return: 0 device accessible
|
|
||||||
1 failed to access device
|
|
||||||
*************************************************************************/
|
|
||||||
unsigned char i2c_rep_start(unsigned char address)
|
|
||||||
{
|
|
||||||
return i2c_start( address );
|
|
||||||
|
|
||||||
}/* i2c_rep_start */
|
|
||||||
|
|
||||||
|
|
||||||
/*************************************************************************
|
|
||||||
Terminates the data transfer and releases the I2C bus
|
|
||||||
*************************************************************************/
|
|
||||||
void i2c_stop(void)
|
|
||||||
{
|
|
||||||
/* send stop condition */
|
|
||||||
TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
|
|
||||||
|
|
||||||
// wait until stop condition is executed and bus released
|
|
||||||
while(TWCR & (1<<TWSTO));
|
|
||||||
|
|
||||||
}/* i2c_stop */
|
|
||||||
|
|
||||||
|
|
||||||
/*************************************************************************
|
|
||||||
Send one byte to I2C device
|
|
||||||
|
|
||||||
Input: byte to be transfered
|
|
||||||
Return: 0 write successful
|
|
||||||
1 write failed
|
|
||||||
*************************************************************************/
|
|
||||||
unsigned char i2c_write( unsigned char data )
|
|
||||||
{
|
|
||||||
uint8_t twst;
|
|
||||||
|
|
||||||
// send data to the previously addressed device
|
|
||||||
TWDR = data;
|
|
||||||
TWCR = (1<<TWINT) | (1<<TWEN);
|
|
||||||
|
|
||||||
// wait until transmission completed
|
|
||||||
while(!(TWCR & (1<<TWINT)));
|
|
||||||
|
|
||||||
// check value of TWI Status Register. Mask prescaler bits
|
|
||||||
twst = TW_STATUS & 0xF8;
|
|
||||||
if( twst != TW_MT_DATA_ACK) return 1;
|
|
||||||
return 0;
|
|
||||||
|
|
||||||
}/* i2c_write */
|
|
||||||
|
|
||||||
|
|
||||||
/*************************************************************************
|
|
||||||
Read one byte from the I2C device, request more data from device
|
|
||||||
|
|
||||||
Return: byte read from I2C device
|
|
||||||
*************************************************************************/
|
|
||||||
unsigned char i2c_readAck(void)
|
|
||||||
{
|
|
||||||
TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWEA);
|
|
||||||
while(!(TWCR & (1<<TWINT)));
|
|
||||||
|
|
||||||
return TWDR;
|
|
||||||
|
|
||||||
}/* i2c_readAck */
|
|
||||||
|
|
||||||
|
|
||||||
/*************************************************************************
|
|
||||||
Read one byte from the I2C device, read is followed by a stop condition
|
|
||||||
|
|
||||||
Return: byte read from I2C device
|
|
||||||
*************************************************************************/
|
|
||||||
unsigned char i2c_readNak(void)
|
|
||||||
{
|
|
||||||
TWCR = (1<<TWINT) | (1<<TWEN);
|
|
||||||
while(!(TWCR & (1<<TWINT)));
|
|
||||||
|
|
||||||
return TWDR;
|
|
||||||
|
|
||||||
}/* i2c_readNak */
|
|
Loading…
Reference in a new issue