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| author | yiancar <yiangosyiangou@cytanet.com.cy> | 2018-11-10 12:26:39 -0800 |
|---|---|---|
| committer | Jack Humbert <jack.humb@gmail.com> | 2018-11-10 15:26:39 -0500 |
| commit | 408361402385ea938575956e9368b5f373edc629 (patch) | |
| tree | 2ce9bc847d66296848bdfe39b15de549058d966d /drivers/arm | |
| parent | 3ba242cc3f5db93b14f0939f056e9aa759a43efe (diff) | |
I2C driver docs (#4298)
* I2C driver docs
- Added I2C driver docs.
- Changed arm master i2c driver to have a weak i2c_init as it is impossible to account for all possible port configuration in the STM32 world.
* Update docs/i2c_driver.md
Co-Authored-By: yiancar <yiangosyiangou@cytanet.com.cy>
* Update docs/i2c_driver.md
Co-Authored-By: yiancar <yiangosyiangou@cytanet.com.cy>
* Update docs/i2c_driver.md
Co-Authored-By: yiancar <yiangosyiangou@cytanet.com.cy>
* Update docs/i2c_driver.md
Co-Authored-By: yiancar <yiangosyiangou@cytanet.com.cy>
* GPIO release fix
Diffstat (limited to 'drivers/arm')
| -rw-r--r-- | drivers/arm/i2c_master.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/arm/i2c_master.c b/drivers/arm/i2c_master.c index 2a7badd351..de58438392 100644 --- a/drivers/arm/i2c_master.c +++ b/drivers/arm/i2c_master.c @@ -26,6 +26,7 @@ */ #include "i2c_master.h" +#include "quantum.h" #include <string.h> #include <hal.h> @@ -41,9 +42,11 @@ static const I2CConfig i2cconfig = { 0 }; +__attribute__ ((weak)) void i2c_init(void) { - palSetGroupMode(GPIOB, GPIOB_PIN6 | GPIOB_PIN7, 0, PAL_MODE_INPUT); // Try releasing special pins for a short time + setPinInput(B6); // Try releasing special pins for a short time + setPinInput(B7); chThdSleepMilliseconds(10); palSetPadMode(GPIOB, 6, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN | PAL_STM32_PUPDR_PULLUP); |