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[Keyboard] Added support for ErgoDox with STM32 Microcontroller (qmk#…
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* Began Work On STM32 Ergodox
 Changes to be committed:
	new file:   keyboards/ergodox_stm32/config.h
	new file:   keyboards/ergodox_stm32/rules.mk

* test

* Now it compile. Not linking thou

* Screw this Linker. It links now!

* Blinkly Keyboard

* bootloader test code

* Working on matrix / i2c stuff

* Progress (LED Blink)

* Progress on MCP_23017 Status Flag

* [WIP]

* update

* Works! Remeber to change back the bootloader address when the new bootloadrer is ready.

* Time to go debug the i2c

* Finally, it now works with PCB Rev 1.0.2

* updated for rev.2 pcb

* minor compilation fix

* Why when debugger is enabled then everything works.

* Remeber to call init functions.

* Update arm i2c driver to support STM32F103 series device.

* fix include once header. Replaced with #pragma once.

* complication test
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Codetector1374 authored and drashna committed Sep 25, 2019
1 parent 245a158 commit 1dc4271
Showing 1 changed file with 12 additions and 3 deletions.
15 changes: 12 additions & 3 deletions drivers/arm/i2c_master.c
Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,17 @@

static uint8_t i2c_address;

// ChibiOS uses two initialization structure for v1 and v2/v3 i2c APIs.
// The F1 series uses the v1 api, which have to initialized this way.
#ifdef STM32F103xB
static const I2CConfig i2cconfig = {
OPMODE_I2C,
400000,
FAST_DUTY_CYCLE_2,
};
#else
// This configures the I2C clock to 400khz assuming a 72Mhz clock
// For more info : https://www.st.com/en/embedded-software/stsw-stm32126.html
static const I2CConfig i2cconfig = {
#ifdef USE_I2CV1
I2C1_OPMODE,
Expand All @@ -41,6 +52,7 @@ static const I2CConfig i2cconfig = {
STM32_TIMINGR_PRESC(I2C1_TIMINGR_PRESC) | STM32_TIMINGR_SCLDEL(I2C1_TIMINGR_SCLDEL) | STM32_TIMINGR_SDADEL(I2C1_TIMINGR_SDADEL) | STM32_TIMINGR_SCLH(I2C1_TIMINGR_SCLH) | STM32_TIMINGR_SCLL(I2C1_TIMINGR_SCLL), 0, 0
#endif
};
#endif

static i2c_status_t chibios_to_qmk(const msg_t* status) {
switch (*status) {
Expand All @@ -60,16 +72,13 @@ __attribute__((weak)) void i2c_init(void) {
palSetPadMode(I2C1_SDA_BANK, I2C1_SDA, PAL_MODE_INPUT);

chThdSleepMilliseconds(10);

#ifdef USE_I2CV1
palSetPadMode(I2C1_SCL_BANK, I2C1_SCL, PAL_MODE_STM32_ALTERNATE_OPENDRAIN);
palSetPadMode(I2C1_SDA_BANK, I2C1_SDA, PAL_MODE_STM32_ALTERNATE_OPENDRAIN);
#else
palSetPadMode(I2C1_SCL_BANK, I2C1_SCL, PAL_MODE_ALTERNATE(I2C1_SCL_PAL_MODE) | PAL_STM32_OTYPE_OPENDRAIN);
palSetPadMode(I2C1_SDA_BANK, I2C1_SDA, PAL_MODE_ALTERNATE(I2C1_SDA_PAL_MODE) | PAL_STM32_OTYPE_OPENDRAIN);
#endif

// i2cInit(); //This is invoked by halInit() so no need to redo it.
}

i2c_status_t i2c_start(uint8_t address) {
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