STM8多通道ADC(库函数).doc

/* STM8 ADC 库函数版*/#include stm8s.hextern void Tim4IrqCallBackFunc();/定时中断回调函数extern void Adc1IrqCallBackFunc();/ADC中断回调函数const uint8_t m_tChannel = 2 ,3;/2 3 为目标通道uint16_t m_tAdcBuffer = 0 , 0;/分配寄存器uint8_t m_iChannel = 0;/全局通道计数const uint16_t m_fBaseVol = 500;/参考电压为5V精确到小数点后两位void Delay( uint16_t nCount) /* Decrement nCount value */ while (nCount != 0) nCount-; void Tim4IrqCallBackFunc() ADC1_Cmd(ENABLE); TIM4_ClearFlag(TIM4_FLAG_UPDATE);uint16_t dat;uint32_t tmp; void Adc1IrqCallBackFunc() ADC1_Cmd( DISABLE); /关了ADC ADC1_ClearFlag( ADC1_FLAG_EOC); /清理标记位 dat = ADC1_GetConversionValue();/获得ADC转换结果 tmp = (uint32_t)dat * m_fBaseVol; m_tAdcBuffer m_iChannel = tmp / 1024;/转换为模拟量 m_iChannel+; if( m_iChannel = sizeof( m_tChannel)/ sizeof(m_tChannel0) m_iChannel = 0; / ADC切换通道#if 0 ADC1_Init( ADC1_CONVERSIONMODE_SINGLE , ADC1_CHANNEL_0 + m_tChannel m_iChannel , ADC1_PRESSEL_FCPU_D2 , ADC1_EXTTRIG_TIM , DISABLE , ADC1_ALIGN_RIGHT , ADC1_SCHMITTTRIG_CHANNEL0 + m_tChannel m_iChannel , ENABLE);#else ADC1_ConversionConfig( ADC1_CONVERSIONMODE_SINGLE , ADC1_CHANNEL_0 + m_tChannel m_iChannel , ADC1_ALIGN_RIGHT); ADC1_SchmittTriggerConfig( ADC1_SCHMITTTRIG_CHANNEL0 + m_tChannel m_iChannel , DISABLE); #endif ADC1_Cmd(ENABLE);/ 主函数入口void main(void) Init_ADC(); TIM4_INIT(); enableInterrupts(); ADC1_StartConversion(); while (1) #ifdef USE_FULL_ASSERT/* * brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * param file: pointer to the source file name * param line: assert_param error line source number * retval : None */void assert_failed(u8* file, u32 line) /* User can add his own implementation to report the file name and line number, ex: printf(Wrong parameters value: file %s on line %drn, file, line) *