diff options
Diffstat (limited to 'board/fruitpie/usb_pd_config.h')
| -rw-r--r-- | board/fruitpie/usb_pd_config.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/board/fruitpie/usb_pd_config.h b/board/fruitpie/usb_pd_config.h index 75d3b112c3..efd702a284 100644 --- a/board/fruitpie/usb_pd_config.h +++ b/board/fruitpie/usb_pd_config.h @@ -47,11 +47,20 @@ static inline void pd_set_pins_speed(void) static inline void pd_tx_enable(int polarity) { gpio_set_level(GPIO_PD_TX_EN, 1); + /* TX_DATA on PB14 is now connected to SPI2 */ + gpio_set_alternate_function(GPIO_B, 0x4000, 0); } /* Put the TX driver in Hi-Z state */ static inline void pd_tx_disable(int polarity) { + /* TX_DATA on PB14 is an output low GPIO to disable the FET */ + STM32_GPIO_MODER(GPIO_B) = (STM32_GPIO_MODER(GPIO_B) & ~(3 << (2*14))) + | (1 << (2*14)); + /* + * Tri-state the low side after the high side + * to ensure we are not going above Vnc + */ gpio_set_level(GPIO_PD_TX_EN, 0); } |