本帖最后由 mslan10390 于 2018-9-12 22:25 編輯
最近有空
把之前雜亂的專案比較常用的部分整理出來
目前是硬件UART和I2C模擬
之后有時間再整理其馀的
- #include "UART.h"
- void USART1_Config(){
-
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1, ENABLE);
-
-
- GPIO_InitTypeDef GPIO_InitStructure;
-
- GPIO_InitStructure.GPIO_Pin = USART1_TX_Pin;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_Init(USART1_Port, &GPIO_InitStructure);
-
- GPIO_InitStructure.GPIO_Pin = USART1_RX_Pin;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
- GPIO_Init(USART1_Port, &GPIO_InitStructure);
-
-
- USART_InitTypeDef USART_InitStructure;
-
- USART_InitStructure.USART_BaudRate = 115200;
- USART_InitStructure.USART_WordLength = USART_WordLength_8b;
- 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(USART1, &USART_InitStructure);
- USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
- USART_Cmd(USART1, ENABLE);
-
- }
- void USART1_SendByte(uint8_t txByte){
-
- USART_ClearFlag(USART1, USART_FLAG_TC);
- USART_SendData(USART1, txByte);
- while(USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET);
- }
- void USART1_SendStr(char* pStr){
-
- uint8_t txByte;
- while(1){
- txByte = *pStr++;
- if(txByte == 0) break;
- USART1_SendByte(txByte);
- }
- }
- void USART1_SendADC(uint16_t ADCVar){
-
- uint8_t Hbit;
- uint8_t Lbit;
-
- // 1st bits ( 1 1 _ _ _ _ _ _ )
- Hbit = ( ADCVar >> 6 ) | 0xC0;
- USART1_SendByte(Hbit);
-
- // 2nd bits ( 0 0 _ _ _ _ _ _ )
- Lbit = ( ADCVar & 0x3F);
- USART1_SendByte(Lbit);
-
- }
- void USART1_Send_32Var(uint32_t txVar){
- uint8_t sBit;
-
- // 1st ( 1 1 _ _ _ _ _ _ ) 6 bits
- sBit = (txVar >> 26) | 0xC0;
- USART1_SendByte(sBit);
-
- // 2nd ( 1 0 _ _ _ _ _ _ ) 6 bits
- sBit = ((txVar >> 20) & 0x3F ) | 0x80;
- USART1_SendByte(sBit);
-
- // 3rd ( 0 1 _ _ _ _ _ _ ) 6 bits
- sBit = ((txVar >> 14) & 0x3F ) | 0x40;
- USART1_SendByte(sBit);
-
- // 4th ( 1 _ _ _ _ _ _ _ ) 7 bits
- sBit = (txVar >> 7) | 0x80;
- USART1_SendByte(sBit);
-
- // Last ( 0 _ _ _ _ _ _ _ ) 7 bits
- sBit = txVar & 0x7F;
- USART1_SendByte(sBit);
-
- // 6 + 6 + 6 + 7 + 7 = 32 bit
-
- }
- void USART1_IRQHandler(){
- uint16_t data_16b;
- //uint32_t data_32b;
- data_16b = 0xAAA;
- //data_32b = 0xAAAAAAAA;
- if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET){
- if((char)USART_ReceiveData(USART1) == 'S'){
- USART1_SendADC(data_16b);
- //USART1_Send_32Var(data_32b);
- }
- }
- }
STM32F103_testFunction.rar
(8.73 KB, 下載次數: 39)
2018-9-12 22:22 上傳
點擊文件名下載附件
手邊沒有現成模塊
所以我用兩塊STM32F103互傳進行測試
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