djsundog/circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

stm32/mphalport: Add mp_hal_pin_config_speed() to select GPIO speed.

Browse Source 
It should be used after mp_hal_pin_config() or mp_hal_pin_config_alt().
This commit is contained in:
Damien George 2018-05-01 17:31:23 +10:00
parent 777e042ab5
commit a28bd4ac94
2 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
ports/stm32/mphalport.c
View File

@ -171,3 +171,9 @@ bool mp_hal_pin_config_alt(mp_hal_pin_obj_t pin, uint32_t mode, uint32_t pull, u
mp_hal_pin_config(pin, mode, pull, af->idx);
return true;
}
void mp_hal_pin_config_speed(mp_hal_pin_obj_t pin_obj, uint32_t speed) {
GPIO_TypeDef *gpio = pin_obj->gpio;
uint32_t pin = pin_obj->pin;
gpio->OSPEEDR = (gpio->OSPEEDR & ~(3 << (2 * pin))) | (speed << (2 * pin));
}

1
ports/stm32/mphalport.h
View File

@ -59,3 +59,4 @@ static inline mp_uint_t mp_hal_ticks_cpu(void) {
void mp_hal_gpio_clock_enable(GPIO_TypeDef *gpio);
void mp_hal_pin_config(mp_hal_pin_obj_t pin, uint32_t mode, uint32_t pull, uint32_t alt);
bool mp_hal_pin_config_alt(mp_hal_pin_obj_t pin, uint32_t mode, uint32_t pull, uint8_t fn, uint8_t unit);
void mp_hal_pin_config_speed(mp_hal_pin_obj_t pin_obj, uint32_t speed);