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STM32-Player-Doc/STM32H743VI 开发版/STM32H750驱动例程(HAL库)/例21 DAC测试/SYSTEM/usart/usart.c

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新增开发版例程
2021-07-28 13:15:22 +08:00
#include "usart.h"
//////////////////////////////////////////////////////////////////////////////////
//<2F><><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>os,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD>.
#if SYSTEM_SUPPORT_OS
#include "includes.h" //os ʹ<><CAB9>
#endif
//////////////////////////////////////////////////////////////////////////////////
//STM32H7<48><37><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD><EFBFBD>1<EFBFBD><31>ʼ<EFBFBD><CABC>
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
//////////////////////////////////////////////////////////////////////////////////
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>´<EFBFBD><C2B4><EFBFBD>,֧<><D6A7>printf<74><66><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫѡ<D2AA><D1A1>use MicroLIB
#if 1
#pragma import(__use_no_semihosting)
//<2F><><EFBFBD><EFBFBD>HAL<41><4C>ʹ<EFBFBD><CAB9>ʱ,ijЩ<C4B3><D0A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܱ<EFBFBD><DCB1><EFBFBD><EFBFBD><EFBFBD>bug
int _ttywrch(int ch)
{
ch=ch;
return ch;
}
//<2F><>׼<EFBFBD><D7BC><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA>֧<EFBFBD>ֺ<EFBFBD><D6BA><EFBFBD>
struct __FILE
{
int handle;
/* Whatever you require here. If the only file you are using is */
/* standard output using printf() for debugging, no file handling */
/* is required. */
};
/* FILE is typedef<65><66> d in stdio.h. */
FILE __stdout;
//<2F><><EFBFBD><EFBFBD>_sys_exit()<29>Ա<EFBFBD><D4B1><EFBFBD>ʹ<EFBFBD>ð<EFBFBD><C3B0><EFBFBD><EFBFBD><EFBFBD>ģʽ
void _sys_exit(int x)
{
x = x;
}
//<2F>ض<EFBFBD><D8B6><EFBFBD>fputc<74><63><EFBFBD><EFBFBD>
int fputc(int ch, FILE *f)
{
while((USART1->ISR&0X40)==0);//ѭ<><D1AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,ֱ<><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
USART1->TDR = (u8) ch;
return ch;
}
#endif
//////////////////////////////////////////////////////////////////
#if EN_USART1_RX //<2F><><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD>˽<EFBFBD><CBBD><EFBFBD>
//<2F><><EFBFBD><EFBFBD>1<EFBFBD>жϷ<D0B6><CFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//ע<><D7A2>,<2C><>ȡUSARTx->SR<53>ܱ<EFBFBD><DCB1><EFBFBD>Ī<EFBFBD><C4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD>
u8 USART_RX_BUF[USART_REC_LEN]; //<2F><><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD>,<2C><><EFBFBD><EFBFBD>USART_REC_LEN<45><4E><EFBFBD>ֽ<EFBFBD>.
//<2F><><EFBFBD><EFBFBD>״̬
//bit15<31><35> <09><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɱ<EFBFBD>־
//bit14<31><34> <09><><EFBFBD>յ<EFBFBD>0x0d
//bit13~0<><30> <09><><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>Ŀ
u16 USART_RX_STA=0; //<2F><><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD><EFBFBD>
u8 aRxBuffer[RXBUFFERSIZE];//HAL<41><4C>ʹ<EFBFBD>õĴ<C3B5><C4B4>ڽ<EFBFBD><DABD>ջ<EFBFBD><D5BB><EFBFBD>
UART_HandleTypeDef UART1_Handler; //UART<52><54><EFBFBD><EFBFBD>
/********************************************************************/
//<2F><>ʼ<EFBFBD><CABC>IO <20><><EFBFBD><EFBFBD>1
//bound:<3A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
/********************************************************************/
void uart_init(u32 bound)
{
//UART <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
UART1_Handler.Instance=USART1; //USART1
UART1_Handler.Init.BaudRate=bound; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
UART1_Handler.Init.WordLength=UART_WORDLENGTH_8B; //<2F>ֳ<EFBFBD>Ϊ8λ<38><CEBB><EFBFBD>ݸ<EFBFBD>ʽ
UART1_Handler.Init.StopBits=UART_STOPBITS_1; //һ<><D2BB>ֹͣλ
UART1_Handler.Init.Parity=UART_PARITY_NONE; //<2F><><EFBFBD><EFBFBD>żУ<C5BC><D0A3>λ
UART1_Handler.Init.HwFlowCtl=UART_HWCONTROL_NONE; //<2F><>Ӳ<EFBFBD><D3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
UART1_Handler.Init.Mode=UART_MODE_TX_RX; //<2F>շ<EFBFBD>ģʽ
HAL_UART_Init(&UART1_Handler); //HAL_UART_Init()<29><>ʹ<EFBFBD><CAB9>UART1
HAL_UART_Receive_IT(&UART1_Handler, (u8 *)aRxBuffer, RXBUFFERSIZE);//<2F>ú<EFBFBD><C3BA><EFBFBD><EFBFBD>Ὺ<EFBFBD><E1BFAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>жϣ<D0B6><CFA3><EFBFBD>־λUART_IT_RXNE<4E><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ý<EFBFBD><C3BD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
}
/********************************************************************/
//UART<52>ײ<EFBFBD><D7B2><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>ʹ<EFBFBD>ܣ<EFBFBD><DCA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><C3A3>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD>
//<2F>˺<EFBFBD><CBBA><EFBFBD><EFBFBD>ᱻHAL_UART_Init()<29><><EFBFBD><EFBFBD>
//huart:<3A><><EFBFBD>ھ<EFBFBD><DABE><EFBFBD>
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
/********************************************************************/
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
//GPIO<49>˿<EFBFBD><CBBF><EFBFBD><EFBFBD><EFBFBD>
GPIO_InitTypeDef GPIO_Initure;
if(huart->Instance==USART1)//<2F><><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><C7B4><EFBFBD>1<EFBFBD><31><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD>1 MSP<53><50>ʼ<EFBFBD><CABC>
{
__HAL_RCC_GPIOA_CLK_ENABLE(); //ʹ<><CAB9>GPIOAʱ<41><CAB1>
__HAL_RCC_USART1_CLK_ENABLE(); //ʹ<><CAB9>USART1ʱ<31><CAB1>
GPIO_Initure.Pin=GPIO_PIN_9; //PA9
GPIO_Initure.Mode=GPIO_MODE_AF_PP; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
GPIO_Initure.Pull=GPIO_PULLUP; //<2F><><EFBFBD><EFBFBD>
GPIO_Initure.Speed=GPIO_SPEED_FREQ_HIGH;//<2F><><EFBFBD><EFBFBD>
GPIO_Initure.Alternate=GPIO_AF7_USART1; //<2F><><EFBFBD><EFBFBD>ΪUSART1
HAL_GPIO_Init(GPIOA,&GPIO_Initure); //<2F><>ʼ<EFBFBD><CABC>PA9
GPIO_Initure.Pin=GPIO_PIN_10; //PA10
HAL_GPIO_Init(GPIOA,&GPIO_Initure); //<2F><>ʼ<EFBFBD><CABC>PA10
#if EN_USART1_RX
HAL_NVIC_EnableIRQ(USART1_IRQn); //ʹ<><CAB9>USART1<54>ж<EFBFBD>ͨ<EFBFBD><CDA8>
HAL_NVIC_SetPriority(USART1_IRQn,3,3); //<2F><>ռ<EFBFBD><D5BC><EFBFBD>ȼ<EFBFBD>3<EFBFBD><33><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD>3
#endif
}
}
/********************************************************************/
//<2F><><EFBFBD>ڽ<EFBFBD><DABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵĻص<C4BB><D8B5><EFBFBD><EFBFBD><EFBFBD>
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
/********************************************************************/
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
if(huart->Instance==USART1)//<2F><><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><C7B4><EFBFBD>1
{
if((USART_RX_STA&0x8000)==0)//<2F><><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD>
{
if(USART_RX_STA&0x4000)//<2F><><EFBFBD>յ<EFBFBD><D5B5><EFBFBD>0x0d
{
if(aRxBuffer[0]!=0x0a)USART_RX_STA=0;//<2F><><EFBFBD>մ<EFBFBD><D5B4><EFBFBD>,<2C><><EFBFBD>¿<EFBFBD>ʼ
else USART_RX_STA|=0x8000; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
}
else //<2F><>û<EFBFBD>յ<EFBFBD>0X0D
{
if(aRxBuffer[0]==0x0d)USART_RX_STA|=0x4000;
else
{
USART_RX_BUF[USART_RX_STA&0X3FFF]=aRxBuffer[0] ;
USART_RX_STA++;
if(USART_RX_STA>(USART_REC_LEN-1))USART_RX_STA=0;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD>,<2C><><EFBFBD>¿<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
}
}
}
}
}
/********************************************************************/
//<2F><><EFBFBD><EFBFBD>1<EFBFBD>жϷ<D0B6><CFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
/********************************************************************/
void USART1_IRQHandler(void)
{
u32 timeout=0;
u32 maxDelay=0x1FFFF;
#if SYSTEM_SUPPORT_OS //ʹ<><CAB9>OS
OSIntEnter();
#endif
HAL_UART_IRQHandler(&UART1_Handler); //<2F><><EFBFBD><EFBFBD>HAL<41><4C><EFBFBD>жϴ<D0B6><CFB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ú<EFBFBD><C3BA><EFBFBD>
timeout=0;
while (HAL_UART_GetState(&UART1_Handler)!=HAL_UART_STATE_READY)//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD>
{
timeout++;////<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
if(timeout>maxDelay) break;
}
timeout=0;
while(HAL_UART_Receive_IT(&UART1_Handler,(u8 *)aRxBuffer, RXBUFFERSIZE)!=HAL_OK)//һ<>δ<EFBFBD><CEB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF><EFBFBD><EFBFBD>жϲ<D0B6><CFB2><EFBFBD><EFBFBD><EFBFBD>RxXferCountΪ1
{
timeout++; //<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
if(timeout>maxDelay) break;
}
#if SYSTEM_SUPPORT_OS //ʹ<><CAB9>OS
OSIntExit();
#endif
}
#endif
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
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