diff options
Diffstat (limited to 'src/stm/stm32l.h')
| -rw-r--r-- | src/stm/stm32l.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/stm/stm32l.h b/src/stm/stm32l.h index 3a498a0a..25f5af07 100644 --- a/src/stm/stm32l.h +++ b/src/stm/stm32l.h @@ -905,6 +905,9 @@ stm_exticr_set(struct stm_gpio *gpio, int pin) { uint8_t shift = (pin & 3) << 2; uint8_t val = 0; + /* Enable SYSCFG */ + stm_rcc.apb2enr |= (1 << STM_RCC_APB2ENR_SYSCFGEN); + if (gpio == &stm_gpioa) val = STM_SYSCFG_EXTICR_PA; else if (gpio == &stm_gpiob) |