3.5 的标准外设库，软件触发 ADC 的问题

只看该作者 · 2011-11-16 16:38

本帖最后由 grissiom 于 2011-11-17 14:03 编辑

3.5.0 的标准外设库。 stm32f10x_adc.c 第 92 行是
/* ADC Software start mask */

#define CR2_EXTTRIG_SWSTART_Set ((uint32_t)0x00500000)

然后

复制

/**

* @brief Enables or disables the selected ADC software start conversion .

* @param ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.

* @param NewState: new state of the selected ADC software start conversion.

* This parameter can be: ENABLE or DISABLE.

* @retval None

*/

void ADC_SoftwareStartConvCmd(ADC_TypeDef* ADCx, FunctionalState NewState)

{

/* Check the parameters */

assert_param(IS_ADC_ALL_PERIPH(ADCx));

assert_param(IS_FUNCTIONAL_STATE(NewState));

if (NewState != DISABLE)

{

/* Enable the selected ADC conversion on external event and start the selected

ADC conversion */

ADCx->CR2 |= CR2_EXTTRIG_SWSTART_Set;

}

else

{

/* Disable the selected ADC conversion on external event and stop the selected

ADC conversion */

ADCx->CR2 &= CR2_EXTTRIG_SWSTART_Reset;

}

}