深圳做微信网站,wordpress 审批流,ios软件开发需要学什么,wordpress获取文章自定义字段STM32F030C8读取CS1237采集模拟 Chapter1 【问题解决记录】STM32F030C8读取CS1237采集模拟问题描述原因分析#xff1a;解决方案#xff1a; Chapter2 CS1237 STM32控制程序以及原理图需要注意事项 Chapter1 【问题解决记录】STM32F030C8读取CS1237采集模拟
原文链接#x… STM32F030C8读取CS1237采集模拟 Chapter1 【问题解决记录】STM32F030C8读取CS1237采集模拟问题描述原因分析解决方案 Chapter2 CS1237 STM32控制程序以及原理图需要注意事项 Chapter1 【问题解决记录】STM32F030C8读取CS1237采集模拟
原文链接https://blog.csdn.net/weixin_40058986/article/details/133160155
问题描述
使用STM32F030C8读取CS1237采集模拟电压时遇到CS1237的CONFIG寄存器无法读写正常的困扰就是配置 RefOut_OFF | SpeedSelct_1280HZ | PGA_1 | CH_A 这些参数无法正确写入实际是我要写入0x70但是读出来是随机值而修改代码上电MCU直接读取CONFIG得到数值是0x0C和手册默认值是对应的说明读操作正常。 而直接读取CS1237的ADC转换数值是和外界输入电压是一致的只是设置CONFG寄存器读写不一致。
原因分析
第一个想到的原因是CS1237的操作时序问题有几个注意点是 1 设置STM32的DOUT端口为INPUT监测来自CS1237的DOUT电平一般芯片上电后CS1237的DOUT会不断地输出高脉冲示波器测量约20us的高脉冲代码中要监测到DOUT的”下降沿“然后才是读写配置和读取ADC转换数值的操作 2参考了网络好多示例代码尤其是”技小新“的CS1237模块LCSC立创商城可以搜到有我的代码基本和他的demo一样 3CS1237上电后需要延时300毫秒的启动时间这个实际测试后发现这个时间不是必须 一顿仔细检查代码发现了STM32端口配置的”笔误“修改后仍然无法正确配置CONFIG 第二个想到的原因是硬件CS1237和STM32的电平兼容问题我的电路CS1237是5V供电stm32是3V3供电它们之间SPI通过22欧姆电阻串联。修改硬件电路将CS1237的电源电压改为3V3后虽然仍无法正确配置CONFIG但是采集电压变得稳定许多 修改串联电阻为100欧姆600欧姆6k5欧姆几乎没有改善 第三个原因是设置CS1237的转换速率是不是对于STM32F0这个MCU来说有点太快了于是我配置了SpeedSelct_1280HZ 是配置不正常而设置其他SpeedSelct_640HZ及以下频率发现CONFIG寄存器正常读写 没错是可以正常读写而PGA的放大倍数也可以正常设置了。
下面是关键部分的代码
#include gp8211s.h
#include main.h
#include delay.huint8_t Gp8211s_Channel_Sel;void Gp8211s_Choose_Channel(uint8_t ch)
{if( !ch ) Gp8211s_Channel_Sel 0;elseGp8211s_Channel_Sel 1;
}void Gp8211s_SCL_Clr()
{if( !Gp8211s_Channel_Sel )HAL_GPIO_WritePin(GP1_SCLK_GPIO_Port, GP1_SCLK_Pin, GPIO_PIN_RESET);else HAL_GPIO_WritePin(GP2_SCLK_GPIO_Port, GP2_SCLK_Pin, GPIO_PIN_RESET);
}
void Gp8211s_SCL_Set()
{if( !Gp8211s_Channel_Sel )HAL_GPIO_WritePin(GP1_SCLK_GPIO_Port, GP1_SCLK_Pin, GPIO_PIN_SET);else HAL_GPIO_WritePin(GP2_SCLK_GPIO_Port, GP2_SCLK_Pin, GPIO_PIN_SET);
}
void Gp8211s_SDA_Clr()
{if( !Gp8211s_Channel_Sel )HAL_GPIO_WritePin(GP1_SDA_GPIO_Port, GP1_SDA_Pin, GPIO_PIN_RESET);else HAL_GPIO_WritePin(GP2_SDA_GPIO_Port, GP2_SDA_Pin, GPIO_PIN_RESET);
}
void Gp8211s_SDA_Set()
{if( !Gp8211s_Channel_Sel )HAL_GPIO_WritePin(GP1_SDA_GPIO_Port, GP1_SDA_Pin, GPIO_PIN_SET);else HAL_GPIO_WritePin(GP2_SDA_GPIO_Port, GP2_SDA_Pin, GPIO_PIN_SET);
}void Gp8211s_IIC_SdaOut()
{GPIO_InitTypeDef GPIO_InitStruct;if( !Gp8211s_Channel_Sel ){GPIO_InitStruct.Pin GP1_SDA_Pin;GPIO_InitStruct.Mode GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Speed GPIO_SPEED_FREQ_HIGH;GPIO_InitStruct.Pull GPIO_PULLUP;HAL_GPIO_Init( GP1_SDA_GPIO_Port, GPIO_InitStruct );}else{GPIO_InitStruct.Pin GP2_SDA_Pin;GPIO_InitStruct.Mode GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Speed GPIO_SPEED_FREQ_HIGH;GPIO_InitStruct.Pull GPIO_PULLUP;HAL_GPIO_Init( GP2_SDA_GPIO_Port, GPIO_InitStruct );}
}void Gp8211s_IIC_SdaIn()
{GPIO_InitTypeDef GPIO_InitStruct;//return;if( !Gp8211s_Channel_Sel ){GPIO_InitStruct.Pin GP1_SDA_Pin;GPIO_InitStruct.Mode GPIO_MODE_INPUT; GPIO_InitStruct.Speed GPIO_SPEED_FREQ_HIGH;GPIO_InitStruct.Pull GPIO_PULLUP;HAL_GPIO_Init( GP1_SDA_GPIO_Port, GPIO_InitStruct );}else{GPIO_InitStruct.Pin GP2_SDA_Pin;GPIO_InitStruct.Mode GPIO_MODE_INPUT; GPIO_InitStruct.Speed GPIO_SPEED_FREQ_HIGH;GPIO_InitStruct.Pull GPIO_PULLUP;HAL_GPIO_Init( GP2_SDA_GPIO_Port, GPIO_InitStruct );}
}void Gp8211s_IIC_Init()
{Gp8211s_IIC_SdaOut();Gp8211s_SDA_Set();Gp8211s_SCL_Set();delay_us(10);
}void Gp8211s_IIC_Start(void)
{Gp8211s_IIC_SdaOut();Gp8211s_SDA_Set();Gp8211s_SCL_Set();delay_us(10);Gp8211s_SDA_Clr();delay_us(10);
}void Gp8211s_IIC_Stop(void)
{Gp8211s_IIC_SdaOut();Gp8211s_SDA_Clr();Gp8211s_SCL_Set();delay_us(10);Gp8211s_SDA_Set();delay_us(10);
}void Gp8211s_IIC_SendByte(uint8_t txd)
{uint8_t t; uint8_t tdata txd; Gp8211s_IIC_SdaOut();Gp8211s_SCL_Clr();delay_us(10);for(t0; t8; t){ if( tdata 0x80 )Gp8211s_SDA_Set();elseGp8211s_SDA_Clr();tdata 1; delay_us(10);Gp8211s_SCL_Set();delay_us(10);Gp8211s_SCL_Clr();delay_us(10);}
}uint8_t Gp8211s_IIC_SdaState()
{uint8_t ret;if( !Gp8211s_Channel_Sel )ret HAL_GPIO_ReadPin(GP1_SDA_GPIO_Port, GP1_SDA_Pin);elseret HAL_GPIO_ReadPin(GP2_SDA_GPIO_Port, GP2_SDA_Pin);return ret;
}uint8_t Gp8211s_IIC_ReadByte(void)
{uint8_t t; uint8_t rdata0; Gp8211s_IIC_SdaIn();for(t0; t8; t){ Gp8211s_SCL_Set();delay_us(10);rdata 1; if( Gp8211s_IIC_SdaState() )rdata|0x01;Gp8211s_SCL_Clr();delay_us(10);} return rdata;
}uint8_t Gp8211s_IIC_WaitAck(void)
{uint32_t ucErrTime 0;GPIO_PinState sda_state;uint8_t RetValue 0;Gp8211s_SCL_Set();delay_us(20);#if 0 Gp8211s_IIC_SdaIn();while(ucErrTime 10000){delay_us(20);sda_state Gp8211s_IIC_SdaState();if( sda_state GPIO_PIN_RESET ){RetValue 1;break;}}if( ucErrTime 10000 ){printf(Gp8211s_IIC_WaitAck timeout\n);Gp8211s_IIC_Stop();}#endifreturn RetValue;
}void Gp8211s_Init(void)
{ //Range 0 to 5VGp8211s_IIC_Start();Gp8211s_IIC_SendByte(0xB0);Gp8211s_IIC_WaitAck();Gp8211s_IIC_SendByte(0x01);Gp8211s_IIC_WaitAck();Gp8211s_IIC_SendByte(0x55); //0x44, 5V; 0x55: 10V; 0x77:12V;Gp8211s_IIC_WaitAck();Gp8211s_IIC_Stop();
}// data_hex max: 0x7FFF
void gp8211s_send_cmd(uint16_t data_hex )
{ uint8_t data8_tmp 0;//Set Reg valueGp8211s_IIC_Start();Gp8211s_IIC_SendByte(0xB0);Gp8211s_IIC_WaitAck();Gp8211s_IIC_SendByte(0x02);Gp8211s_IIC_WaitAck();data8_tmp data_hex 0xFF;Gp8211s_IIC_SendByte(data8_tmp);//DATA Low//Gp8211s_IIC_WaitAck(); //!!! add this, not OK;data8_tmp (data_hex 0x7F00 ) 8;Gp8211s_IIC_SendByte(data8_tmp);//DATA HighGp8211s_IIC_WaitAck();Gp8211s_IIC_Stop();
}void gp8211s_OutPutVolt(uint16_t volt_in_mv )
{ uint32_t VoltRange 10*1000; //10Vuint16_t RegVal 0;if( volt_in_mv VoltRange )volt_in_mv VoltRange;RegVal volt_in_mv * 0x7FFF / VoltRange;RegVal 0x7FFF;//printf(volt_in_mv: %d, RegVal: %X \n , volt_in_mv, RegVal);gp8211s_send_cmd(RegVal);
// gp8211s_send_cmd(0x4000);//printf(volt_in_mv: %d, RegVal: %X \n , volt_in_mv, RegVal);
}
main部分
configData RefOut_OFF | SpeedSelct_640HZ | PGA_1 | CH_A;Con_CS1237(configData);if( Read_CON() ! configData )printf(config in1 error! set: %X, get:%X \r\n , configData, Read_CON());printf( config ch1 ok! \n);
解决方案
实物照片外部输入1.50VOLED的IN1显示1.472V基本正确 例如新建一个 Message 对象并将读取到的数据存入 Message然后 mHandler.obtainMessage(READ_DATA, bytes, -1, buffer).sendToTarget();换成 mHandler.sendMessage()。
Chapter2 CS1237 STM32控制程序以及原理图需要注意事项
原文链接https://blog.csdn.net/qq_34991787/article/details/111083226
CS1237供电为5V的时候STM32是3.3V这时候应该加不小于5.1K的上拉电阻不然CS1237跟32通信不上32设置为OD驱动同时不需要设计通信引脚的限流电阻就可以
下面是驱动程序
----------------------------------------------------------MAIN----------------------------------------------------------/* USER CODE BEGIN Header */
/********************************************************************************* file : main.c* brief : Main program body******************************************************************************* attention** h2centercopy; Copyright (c) 2020 STMicroelectronics.* All rights reserved./center/h2** This software component is licensed by ST under BSD 3-Clause license,* the License; You may not use this file except in compliance with the* License. You may obtain a copy of the License at:* opensource.org/licenses/BSD-3-Clause********************************************************************************/
/* USER CODE END Header *//* Includes ------------------------------------------------------------------*/
#include main.h
#include dma.h
#include usart.h
#include gpio.h/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include string.h
#include mycs1237.h
/* USER CODE END Includes *//* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD *//* USER CODE END PTD *//* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD *//* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM *//* USER CODE END PM *//* Private variables ---------------------------------------------------------*//* USER CODE BEGIN PV *//* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP *//* USER CODE END PFP *//* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
uint8_t mystrlen(uint8_t *tmp)
{uint8_t i0;while(1){if(tmp[i]!\0)i;elsereturn i;}
}/* USER CODE END 0 *//*** brief The application entry point.* retval int*/
int main(void)
{/* USER CODE BEGIN 1 */uint8_t buff[128]{0};uint8_t tmp0;unsigned long mydata0;/* USER CODE END 1 *//* MCU Configuration--------------------------------------------------------*//* Reset of all peripherals, Initializes the Flash interface and the Systick. */HAL_Init();/* USER CODE BEGIN Init *//* USER CODE END Init *//* Configure the system clock */SystemClock_Config();/* USER CODE BEGIN SysInit *//* USER CODE END SysInit *//* Initialize all configured peripherals */MX_GPIO_Init();MX_DMA_Init();MX_USART1_UART_Init();/* USER CODE BEGIN 2 */init_cs1237();tmpCS1237_REF(1)|CS1237_SPEED(1)|CS1237_PGA(0)|CS1237_CH(0);sprintf(buff,SET CF is:0x%X\n,tmp);HAL_UART_Transmit(huart1,buff,mystrlen(buff),100);memset(buff,0,128);rw_cs1237_cofig(0x65,tmp);tmprw_cs1237_cofig(0x56,0);sprintf(buff,GET CF is:0x%X\n,tmp);HAL_UART_Transmit(huart1,buff,mystrlen(buff),100);memset(buff,0,128);/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){/* USER CODE END WHILE *//* USER CODE BEGIN 3 */mydataread_cs1237_data();sprintf(buff,read adc:0x%lX\n,mydata);HAL_UART_Transmit(huart1,buff,mystrlen(buff),100);memset(buff,0,128);mydata0;}/* USER CODE END 3 */
}/*** brief System Clock Configuration* retval None*/
void SystemClock_Config(void)
{RCC_OscInitTypeDef RCC_OscInitStruct {0};RCC_ClkInitTypeDef RCC_ClkInitStruct {0};/** Configure the main internal regulator output voltage */__HAL_RCC_PWR_CLK_ENABLE();__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);/** Initializes the CPU, AHB and APB busses clocks */RCC_OscInitStruct.OscillatorType RCC_OSCILLATORTYPE_HSE;RCC_OscInitStruct.HSEState RCC_HSE_ON;RCC_OscInitStruct.PLL.PLLState RCC_PLL_ON;RCC_OscInitStruct.PLL.PLLSource RCC_PLLSOURCE_HSE;RCC_OscInitStruct.PLL.PLLM 4;RCC_OscInitStruct.PLL.PLLN 168;RCC_OscInitStruct.PLL.PLLP RCC_PLLP_DIV2;RCC_OscInitStruct.PLL.PLLQ 4;if (HAL_RCC_OscConfig(RCC_OscInitStruct) ! HAL_OK){Error_Handler();}/** Initializes the CPU, AHB and APB busses clocks */RCC_ClkInitStruct.ClockType RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;RCC_ClkInitStruct.SYSCLKSource RCC_SYSCLKSOURCE_PLLCLK;RCC_ClkInitStruct.AHBCLKDivider RCC_SYSCLK_DIV1;RCC_ClkInitStruct.APB1CLKDivider RCC_HCLK_DIV4;RCC_ClkInitStruct.APB2CLKDivider RCC_HCLK_DIV2;if (HAL_RCC_ClockConfig(RCC_ClkInitStruct, FLASH_LATENCY_5) ! HAL_OK){Error_Handler();}
}/* USER CODE BEGIN 4 *//* USER CODE END 4 *//*** brief This function is executed in case of error occurrence.* retval None*/
void Error_Handler(void)
{/* USER CODE BEGIN Error_Handler_Debug *//* User can add his own implementation to report the HAL error return state *//* USER CODE END Error_Handler_Debug */
}#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(uint8_t *file, uint32_t line)
{ /* USER CODE BEGIN 6 *//* User can add his own implementation to report the file name and line number,tex: printf(Wrong parameters value: file %s on line %d\r\n, file, line) *//* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT *//************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/----------------------------------------------------------CS1237.C----------------------------------------------------------#include mycs1237.hstatic GPIO_InitTypeDef GPIO_InitStruct {0};#define CS1237_PINSCLK GPIO_PIN_14
#define CS1237_PINDD GPIO_PIN_13#define CS1237_SCLK(x) HAL_GPIO_WritePin(GPIOB, CS1237_PINSCLK,x)
#define CS1237_DD(x) HAL_GPIO_WritePin(GPIOB, CS1237_PINDD,x)#define READ_SCLK HAL_GPIO_ReadPin(GPIOB,CS1237_PINSCLK)
#define READ_DD HAL_GPIO_ReadPin(GPIOB,CS1237_PINDD)#define CS1237_GPIO_OUT(x) GPIO_InitStruct.Pull GPIO_NOPULL;GPIO_InitStruct.Pin x;GPIO_InitStruct.Mode GPIO_MODE_OUTPUT_OD;GPIO_InitStruct.Speed GPIO_SPEED_FREQ_VERY_HIGH;HAL_GPIO_Init(GPIOB, GPIO_InitStruct)
#define CS1237_GPIO_IN(x) GPIO_InitStruct.Pull GPIO_NOPULL;GPIO_InitStruct.Pin x;GPIO_InitStruct.Mode GPIO_MODE_INPUT;GPIO_InitStruct.Speed GPIO_SPEED_FREQ_VERY_HIGH;HAL_GPIO_Init(GPIOB, GPIO_InitStruct)//SCLK高100uS会关闭ADCstatic void cs1237_nop(void)
{unsigned int i0;for(i0;i20;i)
__asm {nop
}
}void init_cs1237(void)
{CS1237_DD(GPIO_PIN_SET);CS1237_SCLK(GPIO_PIN_RESET);CS1237_GPIO_OUT(CS1237_PINDD);CS1237_GPIO_OUT(CS1237_PINSCLK);CS1237_SCLK(GPIO_PIN_SET);HAL_Delay(500);//msCS1237_SCLK(GPIO_PIN_RESET);HAL_Delay(500);//ms
}unsigned long read_cs1237_data(void)
{unsigned short i0;unsigned long tmp0;CS1237_GPIO_IN(CS1237_PINDD);//输入数据CS1237_GPIO_OUT(CS1237_PINSCLK);//输出脉冲while((GPIO_PIN_SETREAD_DD)(i320)){i;HAL_Delay(1);//ms}if(i320){}else{return 0;}for(i0;i24;i)//1-24读取数据{ tmp1;CS1237_SCLK(GPIO_PIN_SET);cs1237_nop();//460nsCS1237_SCLK(GPIO_PIN_RESET);cs1237_nop();//460ns if(GPIO_PIN_SETREAD_DD)tmp;}for(i0;i3;i)//25-27拉高数据脚{CS1237_SCLK(GPIO_PIN_SET);cs1237_nop();//nsCS1237_SCLK(GPIO_PIN_RESET);cs1237_nop();//ns}CS1237_GPIO_IN(CS1237_PINDD);tmp^0x800000;return tmp;
}unsigned char rw_cs1237_cofig(unsigned char cmd,unsigned char data)
{unsigned char tmp0;unsigned short i0;unsigned char rw_flag0;unsigned char cnoo 0;if(0x65cmd)rw_flag1;elserw_flag0;CS1237_GPIO_IN(CS1237_PINDD);while((READ_DD1)(i320)){i;HAL_Delay(1);//ms}if(i320){}else{return 0;}for(i1;i25;i)//1-24脉冲{CS1237_SCLK(GPIO_PIN_SET);cs1237_nop();//nsCS1237_SCLK(GPIO_PIN_RESET);cs1237_nop();//ns}for(i25;i27;i)//25-26{cnoo1;CS1237_SCLK(GPIO_PIN_SET);cs1237_nop();//ns CS1237_SCLK(GPIO_PIN_RESET);cs1237_nop();//ns if(1READ_DD)cnoo;}CS1237_SCLK(GPIO_PIN_SET);//27cs1237_nop();//nsCS1237_SCLK(GPIO_PIN_RESET);cs1237_nop();//nsCS1237_SCLK(GPIO_PIN_SET);//28cs1237_nop();//nsCS1237_SCLK(GPIO_PIN_RESET);cs1237_nop();//nsCS1237_SCLK(GPIO_PIN_SET);//29cs1237_nop();//nsCS1237_SCLK(GPIO_PIN_RESET);cs1237_nop();//ns CS1237_GPIO_OUT(CS1237_PINDD);for(i30;i37;i)//30-36{CS1237_SCLK(GPIO_PIN_SET);cs1237_nop();//nsif((cmd0x40)(0x40))CS1237_DD(1);elseCS1237_DD(0);CS1237_SCLK(GPIO_PIN_RESET);cs1237_nop();//nscmd1;}CS1237_SCLK(GPIO_PIN_SET);//37cs1237_nop();//nsCS1237_SCLK(GPIO_PIN_RESET);cs1237_nop();//ns if(rw_flag1){for(i38;i46;i)//38-45{CS1237_SCLK(GPIO_PIN_SET);cs1237_nop();//nsif((data0x80)0x80)CS1237_DD(1);elseCS1237_DD(0);CS1237_SCLK(GPIO_PIN_RESET);cs1237_nop();//ns data1;}}else{CS1237_GPIO_IN(CS1237_PINDD);for(i38;i46;i)//38-45{tmp1;CS1237_SCLK(GPIO_PIN_SET);cs1237_nop();//nsCS1237_SCLK(GPIO_PIN_RESET);cs1237_nop();//ns if(READ_DD1)tmp;}}CS1237_SCLK(GPIO_PIN_SET);//46cs1237_nop();//nsCS1237_SCLK(GPIO_PIN_RESET);cs1237_nop();//ns CS1237_GPIO_IN(CS1237_PINDD);return tmp;
}----------------------------------------------------------CS1237.H----------------------------------------------------------#ifndef __MYCS1237__
#define __MYCS1237__#include stm32f4xx_hal.h#define CS1237_REF(x) (x6)//1off
#define CS1237_SPEED(x) (x4)//0\10hz 1\40hz 2\640hz 3\1280hz
#define CS1237_PGA(x) (x2)//0\1 1\2 2\64 3\128
#define CS1237_CH(x) (x0)//0\A 1\ 2\wd 3\nd void init_cs1237(void);
unsigned long read_cs1237_data(void);
unsigned char rw_cs1237_cofig(unsigned char cmd,unsigned char data);#endif
