接上文【CW32饭盒派开发板试用体验】+开箱+软件

光耦中间继电器控制加热设备: 实操1

武汉芯源半导体有限公司技术提供有大量中文标注的 实验例程和固件库，在此基础上很容易编程制作产品。

准备利用厂家提供 实验例程\7 实验例程\实验九 AD电位器实验为基础（系统时钟配置为64M，AD电位器所用IO口：PB0，OLED屏幕显示AD电压值，V为单位），变更OLED屏幕显示内容，先增加RTOS，KEY，LED和UART输出调试信息。

1. 增加RTOS

void thread_LED_App(void *argument);        //LEDÈÎÎñº¯Êý
void thread_Start_App(void *argument);      //StartÈÎÎñº¯Êý

osThreadId_t threadID_Start_Thread = NULL;  //¿ªÊ¼ÈÎÎñµÄID
osThreadId_t threadID_LED_Thread   = NULL;  //LEDÈÎÎñµÄID

osStatus_t check_Status;
/* LEDÏß³*** */

const osThreadAttr_t thread_LED_Attr = 
{
	.name = "LED_App",				/* Ïß³ÌÃû×Ö */
	.attr_bits = osThreadJoinable,  /* Ïß³ÌÀàÐÍ */
	.priority = osPriorityLow,      /* Ïß³ÌÓÅÏȼ¶ */
	.stack_size = 512,
};

/* StartÏß³*** */
const osThreadAttr_t thread_Start_Attr = 
{
	.name = "Start_App",			/* Ïß³ÌÃû×Ö */
	.attr_bits = osThreadJoinable,  /* Ïß³ÌÀàÐÍ */
	.priority = osPriorityHigh4,    /* Ïß³ÌÓÅÏȼ¶ */
	.stack_size = 256,
};
  osKernelInitialize();  /* RTX5Äں˳õʼ»¯ */
  
  threadID_Start_Thread = osThreadNew(thread_Start_App, NULL, &thread_Start_Attr);  /* ´´½¨Æô¶¯ÈÎÎñ */ 
//  threadID_LED_Thread = osThreadNew(thread_LED_App, NULL, &thread_LED_Attr);  /* ´´½¨LEDÈÎÎñ */
  
  osKernelStart();       /* ¿ªÆôRTX5µ÷¶È */

2. 增加KEY，LED

` GPIO_InitTypeDef GPIO_InitStruct;

__RCC_GPIOB_CLK_ENABLE();
__RCC_GPIOC_CLK_ENABLE();
__RCC_GPIOA_CLK_ENABLE();

GPIO_InitStruct.IT = GPIO_IT_NONE; //KEY1 KEY2 KEY3
GPIO_InitStruct.Mode = GPIO_MODE_INPUT_PULLUP;
GPIO_InitStruct.Pins = GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_Init(CW_GPIOB, &GPIO_InitStruct);

GPIO_InitStruct.IT = GPIO_IT_NONE; //LED2 LED3
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pins = GPIO_PIN_7|GPIO_PIN_8;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_Init(CW_GPIOA, &GPIO_InitStruct);

GPIO_InitStruct.Pins = GPIO_PIN_13;	//LED4

GPIO_Init(CW_GPIOC, &GPIO_InitStruct);

GPIO_WritePin(CW_GPIOB,GPIO_PIN_7|GPIO_PIN_8,GPIO_Pin_RESET);  //拉低
GPIO_WritePin(CW_GPIOC,GPIO_PIN_13,GPIO_Pin_RESET); //拉低`

3. 增加UART

#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)              //printf
``````UART_init();
void UART_init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;



RCC_APBPeriphClk_Enable1(RCC_APB1_PERIPH_UART3, ENABLE);
RCC_AHBPeriphClk_Enable( RCC_AHB_PERIPH_GPIOA, ENABLE);
PUTCHAR_PROTOTYPE    //½«C¿âµÄprintfº¯ÊýÖØж¨Î»µ½USART
{
USART_SendData_8bit(CW_UART3, (uint8_t)ch);

while (USART_GetFlagStatus(CW_UART3, USART_FLAG_TXE) == RESET);
//USART_ClearFlag(CW_UART3,USART_FLAG_TXE);		
return ch;
}



PA09_AFx_UART1RXD();
PA09_AFx_UART1RXD();

PA09_AFx_UART3TXD();
PA10_AFx_UART3RXD()  ;


GPIO_InitStructure.Pins = GPIO_PIN_9; //PA9
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
GPIO_Init(CW_GPIOA, &GPIO_InitStructure);

GPIO_InitStructure.Pins = GPIO_PIN_10; //PA10
GPIO_InitStructure.Mode = GPIO_MODE_INPUT_PULLUP;
GPIO_Init(CW_GPIOA, &GPIO_InitStructure);

USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_Over = USART_Over_16;
USART_InitStructure.USART_Source = USART_Source_PCLK;
USART_InitStructure.USART_UclkFreq = 64000000;
USART_InitStructure.USART_StartBit = USART_StartBit_FE;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No ;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(CW_UART3, &USART_InitStructure);

}

build：

Program Size: Code=17260 RO-data=7464 RW-data=5684 ZI-data=1844
FromELF: creating hex file...
".\Objects\GPIO.axf" - 0 Error(s), 1 Warning(s).
Build Time Elapsed: 00:00:06
**运行com口:**

CW32F030 UART Printf Example
Creating RTX5 object.

CW32F030 UART Printf Example
Creating RTX5 object.

Start App going to exit.

RTOS 状态

达到预期。
图片视频