[经验]

【极海APM32F030R8 MINI开发板试用体验】+官方adc程序

卢松涛

2020-12-17 13:48:01

2975

` 本帖最后由 lustao 于 2020-12-17 14:29 编辑

接【极海APM32F030R8 MINI开发板免费试用】+开箱+软件，

由于极海APM32F030R8 MINI开发板的外设资源极为丰富，基于 32位ARM® Cortex®-M0+内核，工作主频48MHz，Flash：64K，SRAM：8KB，工作温度范围：-40℃~+105℃，满足严苛的工业级环境温度需求；具有高效处理运算功能，可实时处理大量指令信息；内置RTC，支持日历功能，可在停机/待机模式下设定报警和定期唤醒功能；具有高精度12位ADC，可实现动态高精度实时采样。板上st3232usart少有的硬件全功能经典com口产品，这就为功能拓展提供极大的空间。在功能扩展中，第一要务就是为它搭建一个人机交互的桥梁，准备使用计算机com口通讯来传达的信息。

昨天找来com口件作接口，

安装

APM32F0xx_SDK解包，厂家adc程序（使用板•UART: 1和计算机com3））
到H:geehyAPM32F0xx_SDK_v1.2APM32F0xx_SDK_v1.2ExamplesADCADC_ContinuousConversionProjectMDK目录打开ADC_ContinuousConversion.uvprojx厂家示例文件，
编译下载，此板只有电源灯亮。

厂家代码：

/*!
* [url=home.php?mod=space&uid=1455510]@file[/url] main.c
*
* [url=home.php?mod=space&uid=2666770]@Brief[/url] Main program body
*
* [url=home.php?mod=space&uid=644434]@version[/url] V1.0.0
*
* @date 2020-8-25
*/
#include "stdio.h"
#include "apm32f0xx_gpio.h"
#include "apm32f0xx_misc.h"
#include "apm32f0xx_eint.h"
#include "apm32f0xx_adc.h"
#include "Board.h"
/** printf function configs to USART1*/
#define DEBUG_USART USART1
/** Delay */
void Delay(void);
/** ADC Init */
void ADCInit(void);
/*!
* @brief Main program
*
* [url=home.php?mod=space&uid=3142012]@param[/url] None
*
* @retval None
*
* @note
*/
int main(void)
{
APM_MINI_LEDInit(LED2);
APM_MINI_LEDInit(LED3);
APM_MINI_COMInit(COM1);
ADCInit();
/** Wait until ADC is ready */
while (!ADC_ReadStatusFlag(ADC_FLAG_ADRDY));
ADC_StartConversion();
printf("
volatage :
");
for (;;)
{
}
}
/*!
* @brief ADC_Init
*
* @param None
*
* @retval None
*
* @note
*/
void ADCInit(void)
{
GPIO_Config_T gpioConfig;
ADC_Config_T adcConfig;
/** RCM Enable*/
RCM_EnableAHBPeriphClock(RCM_AHB_PERIPH_GPIOA);
RCM_EnableAPB2PeriphClock(RCM_APB2_PERIPH_ADC1);
RCM_EnableAPB2PeriphClock(RCM_APB2_PERIPH_SYSCFG);
/** GPIO Configuration */
gpioConfig.pin = GPIO_PIN_0;
gpioConfig.mode = GPIO_MODE_AN;
gpioConfig.pupd = GPIO_PUPD_PU;
GPIO_Config(GPIOA, &gpioConfig);
/** ADC Configuration */
ADC_Reset();
ADC_ConfigStructInit(&adcConfig);
/** Set resolution*/
adcConfig.resolution = ADC_RESOLUTION_12B;
/** Set dataAlign*/
adcConfig.dataAlign = ADC_DATA_ALIGN_RIGHT;
/** Set scanDir*/
adcConfig.scanDir = ADC_SCAN_DIR_UPWARD;
/** Set convMode continous*/
adcConfig.convMode = ADC_CONVERSION_CONTINUOUS;
/** Set extTrigConv*/
adcConfig.extTrigConv = ADC_EXT_TRIG_CONV_TRG0;
/** Set TrigEdge*/
adcConfig.extTrigEdge = ADC_EXT_TRIG_EDGE_NONE;
ADC_Config(&adcConfig);
ADC_ConfigChannel(ADC_CHANNEL_0, ADC_SAMPLE_TIME_239_5);
/** Enable Interrupt*/
ADC_EnableInterrupt(ADC_INT_CS);
NVIC_EnableIRQRequest(ADC1_IRQn, 2);
/** Calibration*/
ADC_ReadCalibrationFactor();
/** Enable ADC*/
ADC_Enable();
}
/*!
* @brief ADC_Isr
*
* @param None
*
* @retval None
*
* [url=home.php?mod=space&uid=1902110]@NOTE[/url] This function need to put into ADC1_IRQHandler in apm32f0xx_int.c
*/
void ADC_Isr()
{
uint32_t adcData = 0;
uint32_t voltage = 0;
if (ADC_ReadIntFlag(ADC_INT_FLAG_CS) == SET)
{
ADC_ClearIntFlag(ADC_INT_FLAG_CS);
/** Read ADC Conversion value*/
adcData = ADC_ReadConversionValue();
/** voltage(mV) = adcData * (3300mV / 4095) */
voltage = (adcData*3300)/4095;
/** output to serial port*/
printf("
volatage : %d
", voltage);
}
}
/*!
* @brief Delay
*
* @param None
*
* @retval None
*
* @note
*/
void Delay(void)
{
volatile uint32_t delay = 0xff5;
while (delay--);
}
/*!
* @brief Redirect C Library function printf to serial port.
* After Redirection, you can use printf function.
*
* @param ch: The characters that need to be send.
*
* @param *f: pointer to a FILE that can recording all information
* needed to control a stream
*
* @retval The characters that need to be send.
*
* @note
*/
int fputc(int ch, FILE* f)
{
/** send a byte of data to the serial port */
USART_TxData(DEBUG_USART, (uint8_t)ch);
/** wait for the data to be send */
while (USART_ReadStatusFlag(DEBUG_USART, USART_FLAG_TXBE) == RESET);
return (ch);
}

复制代码

编译结果

Load "H:geehyAPM32F0xx_SDK_v1.2APM32F0xx_SDK_v1.2ExamplesADCADC_ContinuousConversionProjectMDKOutAPM32F030ADC_ContinuousConversion.axf"
Dll Verison 1.06 Build date: 2019-06-23
Emulaor: MM32-LINK, SN: 0023557, Hardware: A, Firmware: 1.23
Manufacturer: MindMotion, Date: 2020-01-08
Appliaction: MM32-LINK, Version: 1.51
Connect Mode SWD, Speed Auto
Out put voltage 3.34V, current 0.00mA, target voltage 0.01V
Found SWD-DP with ID 0x410CC601
Found Cortex-M0 r0p1, Little endian
FPUnit: 4 code (BP) slots and 0 literal slots
Data Watchpoint: 2
Erase Done.
Programming Done.
Verify OK.
Flash Load finished at 11:39:24

debug:

com3口接收到数据：当pa0没接时

当按下key2时pa0接地

当按下pa0接vdd电源时

采用中断模式极快的速度（Mhz）完成采集，应用场景广。