// Get the pin informations
uint32_t mode = STM_PIN_FUNCTION(data);
uint32_t afnum = STM_PIN_AFNUM(data);
uint32_t speed = STM_PIN_SPEED(data);
uint32_t port = STM_PORT(pin);
uint32_t ll_pin = ll_pin_defines[STM_PIN(pin)];
uint32_t ll_mode = 0;
// Enable GPIO clock
GPIO_TypeDef *gpio = Set_GPIO_Clock(port);
/* Set default speed to high.
* For most families there are dedicated registers so it is
* not so important, register can be set at any time.
* But for families like F1, speed only applies to output.
*/
#if defined (TARGET_STM32F1)
if (mode == STM_PIN_OUTPUT) {
#endif
switch (speed)
{
default:
case STM_PIN_SPEED_MASK:
#if defined (LL_GPIO_SPEED_FREQ_VERY_HIGH)
LL_GPIO_SetPinSpeed(gpio, ll_pin, LL_GPIO_SPEED_FREQ_VERY_HIGH);
#else
LL_GPIO_SetPinSpeed(gpio, ll_pin, LL_GPIO_SPEED_FREQ_HIGH);
#endif
break;
#if defined (LL_GPIO_SPEED_FREQ_VERY_HIGH)
case LL_GPIO_SPEED_FREQ_VERY_HIGH:
#endif
case LL_GPIO_SPEED_FREQ_HIGH:
case LL_GPIO_SPEED_FREQ_MEDIUM:
case LL_GPIO_SPEED_FREQ_LOW:
LL_GPIO_SetPinSpeed(gpio, ll_pin, speed);
break;
}
#if defined (TARGET_STM32F1)
}
#endif
switch (mode) {
case STM_PIN_INPUT:
ll_mode = LL_GPIO_MODE_INPUT;
break;
case STM_PIN_OUTPUT:
ll_mode = LL_GPIO_MODE_OUTPUT;
break;
case STM_PIN_ALTERNATE:
ll_mode = LL_GPIO_MODE_ALTERNATE;
// In case of ALT function, also set he afnum
stm_pin_SetAFPin(gpio, pin, afnum);
break;
case STM_PIN_ANALOG:
ll_mode = LL_GPIO_MODE_ANALOG;
break;
default:
MBED_ASSERT(0);
break;
}
LL_GPIO_SetPinMode(gpio, ll_pin, ll_mode);
#if defined(GPIO_ASCR_ASC0)
/* For families where Analog Control ASC0 register is present */
if (STM_PIN_ANALOG_CONTROL(data)) {
LL_GPIO_EnablePinAnalogControl(gpio, ll_pin);
} else {
LL_GPIO_DisablePinAnalogControl(gpio, ll_pin);
}
#endif
/* For now by default use Speed HIGH for output or alt modes */
if ((mode == STM_PIN_OUTPUT) || (mode == STM_PIN_ALTERNATE)) {
if (STM_PIN_OD(data)) {
LL_GPIO_SetPinOutputType(gpio, ll_pin, LL_GPIO_OUTPUT_OPENDRAIN);
} else {
LL_GPIO_SetPinOutputType(gpio, ll_pin, LL_GPIO_OUTPUT_PUSHPULL);
}
}
stm_pin_PullConfig(gpio, ll_pin, STM_PIN_PUPD(data));
stm_pin_DisconnectDebug(pin);
}