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authorYaotian Feng <codetector@codetector.cn>2019-09-25 14:52:17 -0400
committerDrashna Jaelre <drashna@live.com>2019-09-25 11:52:17 -0700
commitc61d7d7cb001498e6edf09a9ebc6124c1fe6ed97 (patch)
tree74045b30c256bed3b533b786edd2af06ee20ced0 /drivers/arm/i2c_master.c
parenteac4ce972d951855ee168705b46bc9421a4d4deb (diff)
[Keyboard] Added support for ErgoDox with STM32 Microcontroller (#5398)
* 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
Diffstat (limited to 'drivers/arm/i2c_master.c')
-rw-r--r--drivers/arm/i2c_master.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/arm/i2c_master.c b/drivers/arm/i2c_master.c
index 18068d3a6d..fcfe85b561 100644
--- a/drivers/arm/i2c_master.c
+++ b/drivers/arm/i2c_master.c
@@ -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,
@@ -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) {
@@ -60,7 +72,6 @@ __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);
@@ -68,8 +79,6 @@ __attribute__((weak)) void i2c_init(void) {
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) {