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| author | Michael Kurz <michi.kurz@googlemail.com> | 2021-03-03 05:02:20 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-03-02 23:02:20 -0500 |
| commit | ab979a52cfdbc8184c9ad1747210d2a49bf719a2 (patch) | |
| tree | 8c5c767db399a24168df5b4e2975f629f9fd8242 /src/stm32/stm32f1.c | |
| parent | 5f80c84309f30a6363d1b9cd9999749b57de0ef0 (diff) | |
| download | kutter-ab979a52cfdbc8184c9ad1747210d2a49bf719a2.tar.gz kutter-ab979a52cfdbc8184c9ad1747210d2a49bf719a2.tar.xz kutter-ab979a52cfdbc8184c9ad1747210d2a49bf719a2.zip | |
stm32: Add support for STM32F1 I2C1 alternate pin mapping (#4012)
This adds support for the alternate pin mapping of
I2C1 on PB8/9 in STM32F1 devices
Signed-off-by: Michael Kurz <michi.kurz@gmail.com>
Diffstat (limited to 'src/stm32/stm32f1.c')
| -rw-r--r-- | src/stm32/stm32f1.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/stm32/stm32f1.c b/src/stm32/stm32f1.c index 886b7b91..6480b678 100644 --- a/src/stm32/stm32f1.c +++ b/src/stm32/stm32f1.c @@ -124,10 +124,16 @@ gpio_peripheral(uint32_t gpio, uint32_t mode, int pullup) // way from other STM32s. // Code below is emulating a few mappings to work like an STM32F4 uint32_t func = (mode >> 4) & 0xf; - if(( gpio == GPIO('B', 8) || gpio == GPIO('B', 9)) && - func == 9) { // CAN - stm32f1_alternative_remap(AFIO_MAPR_CAN_REMAP_Msk, - AFIO_MAPR_CAN_REMAP_REMAP2); + if (gpio == GPIO('B', 8) || gpio == GPIO('B', 9)) { + if (func == 9) { + // CAN + stm32f1_alternative_remap(AFIO_MAPR_CAN_REMAP_Msk, + AFIO_MAPR_CAN_REMAP_REMAP2); + } else if (func == 4) { + // I2C1 Alt + stm32f1_alternative_remap(AFIO_MAPR_I2C1_REMAP_Msk, + AFIO_MAPR_I2C1_REMAP); + } } // Add more as needed } |