shinys000114/klipper
1
0
Fork 0
mirror of git://soft.sys114.com/klipper synced 2026-02-13 10:10:33 +09:00
Code Issues Packages Projects Releases Wiki Activity

stm32: Add support for STM32F1 I2C1 alternate pin mapping (#4012)

Browse Source 
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>
This commit is contained in:
Michael Kurz
2021-03-03 05:02:20 +01:00
committed by GitHub
parent 5f80c84309
commit ab979a52cf
2 changed files with 15 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/stm32/stm32f1.c
View File

@@ -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
}