unsigned int mem_Write(unsigned int addr,unsigned char *data, unsigned int data_len)
{
unsigned int i=0;
unsigned char b;
i2c_Start();
i2c_Write(MEM_ADDRESS);
if (i2c_Timeout()) goto Timeout;
b = addr>>8;
i2c_Write(b);
if (i2c_Timeout()) goto Timeout;
b = addr&0xFF;
i2c_Write(b);
if (i2c_Timeout()) goto Timeout;
for (i=0; i<data_len; i++)
{
i2c_Write(data[i]);
if (i2c_Timeout()) goto Timeout;
}
i2c_Stop();
return i;
Timeout:
return i;
}
unsigned int mem_Read(unsigned int addr,unsigned char *data, unsigned int data_len)
{
unsigned int i=0;
unsigned char b;
i2c_Start();
i2c_Write(MEM_ADDRESS);
if (i2c_Timeout()) goto Timeout;
b = addr>>8;
i2c_Write(b);
if (i2c_Timeout()) goto Timeout;
b = addr&0xFF;
i2c_Write(b);
if (i2c_Timeout()) goto Timeout;
//i2c_Stop();
i2c_Start();
i2c_Write(MEM_ADDRESS | 1);
if (i2c_Timeout()) goto Timeout;
for (i=0; i<data_len; i++)
{
data[i] = i2c_Read();
clear_CPU_operation_detection();
if (i<data_len-1)
i2c_Ack();
else
i2c_Nack();
}
i2c_Stop();
return i;
Timeout:
return i;
}
/**
* @brief User callback that manages the Timeout error.
* @param pDevInitStruct .
* @retval None.
*/
uint32_t CPAL_TIMEOUT_UserCallback(CPAL_InitTypeDef* pDevInitStruct) {
i2c_Timeout();
/* Update CPAL states */
pDevInitStruct->CPAL_State = CPAL_STATE_READY;
pDevInitStruct->wCPAL_DevError = CPAL_I2C_ERR_NONE;
pDevInitStruct->wCPAL_Timeout = CPAL_I2C_TIMEOUT_DEFAULT;
/* DeInitialize CPAL device */
CPAL_I2C_DeInit(pDevInitStruct);
/* Initialize CPAL device with the selected parameters */
CPAL_I2C_Init(pDevInitStruct);
return CPAL_PASS;
}
