我使用STVD中的代码在stm8s003f3上运行adc哪里出错了？

大家好


我是这个论坛的新手，所以你好。我也是STM en C的新手。我正在尝试一步一步地学习所有内容，但要坚持使用adc。

我正在尝试使用带有Cosmic的STVD中的以下代码在stm8s003f3上运行adc，并使用UART将结果发送到pc。 anybode可以告诉我我做错了什么吗？ adc_value是ADXL335的1010。 arduino上的相同设置提供了大约350左右的读数。

任何建议都是welkom ...已经感谢了

























#stm8 #adc



以下为原文




Hello everyone


I am new to this forum, so hello. I am also new to STM en C. I am trying to learn everything step by step but get the stuck on the adc.

I am trying to get the adc working on stm8s003f3 with the following code in STVD with Cosmic, and send the result to the pc using UART. Can anybode tell my what i am doing wrong? adc_value is 1010 from ADXL335. Same setup on arduino gives a reading somewhere around 350.

Any suggestion is welkom... Already thanks

• /* Includes ------------------------------------------------------------------*/
  

• &sharpinclude ''stm8s.h''
  

• &sharpinclude ''stdio.h''
  

• &sharpifdef _RAISONANCE_
  

• &sharpdefine PUTCHAR_PROTOTYPE int putchar (char c)
  

• &sharpdefine GETCHAR_PROTOTYPE int getchar (void)
  

• &sharpelif defined (_COSMIC_)
  

• &sharpdefine PUTCHAR_PROTOTYPE char putchar (char c)
  

• &sharpdefine GETCHAR_PROTOTYPE char getchar (void)
  

• &sharpelse /* _IAR_ */
  

• &sharpdefine PUTCHAR_PROTOTYPE int putchar (int c)
  

• &sharpdefine GETCHAR_PROTOTYPE int getchar (void)
  

• &sharpendif /* _RAISONANCE_ */
  

• 
  

• int i;
  

• 
  

• int nCount = 0;
  

• 
  

• int adc_value = 0;
  

• 
  

• int adc_h = 0;
  

• 
  

• int adc_l = 0;
  

• 
  

• int nAdc_Buffer[10] = {0,0,0,0,0,0,0,0,0,0};
  

• 
  

• int nAdc_Hold = 0;
  

• void main(void)
  

• {
  

• 
  

• char ans;
  

• 
  

• CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);
  

• 
  

• UART1_DeInit();
  

• 
  

• UART1_Init((uint32_t)115200, UART1_WORDLENGTH_8D, UART1_STOPBITS_1, UART1_PARITY_NO,
  

• 
  

• UART1_SYNCMODE_CLOCK_DISABLE, UART1_MODE_TXRX_ENABLE);
  

• 
  

• 
  

• /* ADC 1 Configuration ----------------------------------------*/
  

• GPIO_Init(GPIOD, GPIO_PIN_2, GPIO_MODE_IN_FL_NO_IT );
  

• 
  

• ADC1_DeInit();
  

• 
  

• ADC1_Init(ADC1_CONVERSIONMODE_CONTINUOUS, ADC1_CHANNEL_0, ADC1_PRESSEL_FCPU_D2, ADC1_EXTTRIG_TIM,DISABLE, ADC1_ALIGN_RIGHT, ADC1_SCHMITTTRIG_CHANNEL0, DISABLE );
  

• 
  

• 
  

• ADC1_StartConversion();
  

• 
  

• 
  

• while (1)
  

• 
  

• {
  

• 
  

• for(i=0;i<20000;i++) // A delay loop
  

• 
  

• {
  

• 
  

• nop();
  

• 
  

• }
  

• 
  

• 
  

• for ( nCount = 0; nCount< 10; nCount++){
  

• 
  

• nAdc_Buffer[nCount] = ADC1_GetConversionValue();
  

• 
  

• nAdc_Hold += nAdc_Buffer[nCount];
  

• 
  

• }
  

• 
  

• nAdc_Buffer[0] = nAdc_Hold / 10;
  

• 
  

• adc_value = nAdc_Buffer[0];
  

• 
  

• 
  

• for ( nCount = 0; nCount< 10; nCount++){
  

• 
  

• nAdc_Buffer[nCount] = 0;
  

• 
  

• }
  

• 
  

• nAdc_Hold = 0;
  

• 
  

• 
  

• printf('' %dn'',adc_value);
  

• 
  

• printf(''adc valuenr'');
  

• 
  

• 
  

• }
  

• }
  

• PUTCHAR_PROTOTYPE
  

• {
  

• 
  

• /* Write a character to the UART1 */
  

• 
  

• UART1_SendData8(c);
  

• 
  

• /* Loop until the end of transmission */
  

• 
  

• while (UART1_GetFlagStatus(UART1_FLAG_TXE) == RESET);
  

• 
  

• return (c);
  

• }
  

• GETCHAR_PROTOTYPE
  

• {
  

• &sharpifdef _COSMIC_
  

• 
  

• char c = 0;
  

• &sharpelse
  

• 
  

• int c = 0;
  

• &sharpendif
  

• 
  

• /* Loop until the Read data register flag is SET */
  

• 
  

• while (UART1_GetFlagStatus(UART1_FLAG_RXNE) == RESET);
  

• 
  

• c = UART1_ReceiveData8();
  

• 
  

• return (c);
  

• }
  

• &sharpifdef 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(uint8_t* file, uint32_t 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) */
  

• 
  

• /* Infinite loop */
  

• 
  

• while (1)
  

• 
  

• {
  

• 
  

• }
  

• }
  

• &sharpendif
  

  
#stm8 #adc