void analogout_free(dac_t *obj) { // Reset DAC and disable clock __DAC_FORCE_RESET(); __DAC_RELEASE_RESET(); __DAC_CLK_DISABLE(); // Configure GPIO pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); }
void analogout_free(dac_t *obj) { // Reset DAC and disable clock if (obj->pin == PA_4) pa4_used = 0; if (obj->pin == PA_5) pa5_used = 0; if ((pa4_used == 0) && (pa5_used == 0)) { __DAC_FORCE_RESET(); __DAC_RELEASE_RESET(); __DAC_CLK_DISABLE(); } // Configure GPIO pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); }