HAL_I2C_Mem_Write 函数的返回值是一个 HAL_StatusTypeDef 枚举值,用于表示写入操作的结果。常见的返回值包括 HAL_OK(成功)、HAL_ERROR(错误)、HAL_BUSY(总线繁忙)和 HAL_TIMEOUT(超时)。调用者应根据这些返回值来判断写入操作是否成功,并采取相应的处理措施。
* HAL_ERROR:函数执行出错 * HAL_TIMEOUT:超时 函数调用示例: 以下是一个使用HAL_I2C_Mem_Write函数向I2C设备写入数据的示例代码: uint8_t data[4]= {0x01,0x02,0x03,0x04}; //要写入的数据 HAL_StatusTypeDef status =HAL_I2C_Mem_Write(&hi2c1,0xA0,0x0000,I2C_MEMADD_SIZE_8BIT,(u8*)data,7...
本函数位于stm32f1xx_hai_i2c.c文件的6876行,它实现了一个这样的功能:判断在一个时间间隔内,某标志位是否等于某值,如果是则返回HAL_OK;如否,则配置hi2c结构体参数并返回HAL_ERROR。 _HAL_LOCK(hi2c)实现了对资源的锁定,我们来看它的源代码 它位于stm32f1xx_hal_def.h文件内,它实现了这样一个功能:判断...
Here is an example of a call that leads to an error unless I insert an artificial delay: /* Write each preset to memory */ clear_block(mem_offset, 1); write_block(mem_offset, &temp[i], 1); Is there a reason this is happening? Currently the weird thing is...
Error_Handler();} } void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c) { } 注释掉的非 ...
I2C不连接Device时,会导致没收到回应而卡死在system_interrupt.c的error_instancex里面,这是到2.03版本harmony的bug,可以自行仿照下面方式添加函数来避免,注意intance与i2c通路的对应,这里是intance0-instance4对应i2c1-i2c5 void __ISR(_I2C1_MASTER_VECTOR, ipl1AUTO) _IntHandlerDrvI2CMasterInstance0(void) ...
the starting address and read back the data does not work; the starting address can be sent correctly, but a stop condition will be inserted on the I2C bus before the read transaction is sent by the recv() command, so it does not get acknowledged and i2c.recv() exits with an error: ...