STM32F1, STMCubeMX, I2C, PCF8563

STM32F1, STMCubeMX, I2C, PCF8563

0. 참고 사이트

• https://www.waveshare.com/wiki/PCF8563_RTC_Board
• https://www.waveshare.com/wiki/Open103V
  

1. 모듈

2. HW 연결

VCC 는 3V3입니다.

3. I2C 활성화

4. I2C 사용법

uint8_t txData[1]; uint8_t rxData[1]; HAL_StatusTypeDef res; txData[0] = reg; res = HAL_I2C_Master_Transmit(&hi2c1, (0x51 << 1), txData, sizeof(txData), HAL_MAX_DELAY);         if (res != HAL_OK) {     printf("getI2C: Not Okay[0x%x]\r\n", reg); }                res = HAL_I2C_Master_Receive(&hi2c1, (0x51 << 1), rxData, sizeof(rxData), HAL_MAX_DELAY); if (res != HAL_OK) {     printf("getI2C: Not Okay[0x%x]\r\n", reg); }         return rxData[0];

5. 소스

https://github.com/sglee0223/stm32f103ve/tree/master/pcf8563

6. 결과 확인