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Fix for the Split Common I2C code's SCL_CLOCK issue (#3474)

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* Fix the SLC_CLOCK setting for the Split Common code

Make the SCL_CLOCK setting configurable per board, since some use different settings
And change the Iris  to use 100000L instead of 400000L

* Add SCL_CLOCK variable to documentation

* Change SCL_CLOCK default to 100000L
This commit is contained in:
Drashna Jaelre 2018-07-25 08:26:10 -07:00 committed by skullydazed
parent 56ed2d495d
commit 4df6b7ba19
2 changed files with 5 additions and 1 deletions
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2
docs/config_options.md
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@ -91,6 +91,8 @@ This is a C header file that is one of the first things included, and will persi
* key combination that allows the use of magic commands (useful for debugging)
* `#define USB_MAX_POWER_CONSUMPTION`
* sets the maximum power (in mA) over USB for the device (default: 500)
* `#define SCL_CLOCK 100000L`
* sets the SCL_CLOCK speed for split keyboards. The default is `100000L` but some boards can be set to `400000L`.
## Features That Can Be Disabled

4
quantum/split_common/i2c.h
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@ -25,7 +25,9 @@
#define SLAVE_BUFFER_SIZE 0x20
// i2c SCL clock frequency
#define SCL_CLOCK 400000L
#ifndef SCL_CLOCK
#define SCL_CLOCK 100000L
#endif
// Support 8bits right now (8 cols) will need to edit to take higher (code exists in delta split?)
extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];