Waveshare NRF52840 - Page 34

NRF52840 Eval Kit User Manual
Vision: V1.0.1 Date: 2019.01.19 34 / 72
{
int8_t rslt = 0; /* Return 0 for Success, non-zero for failure
*/
/*
* The parameter dev_id can be used as a variable to store the
I2C address of the device
*/
/*
* Data on the bus should be like
* |------------+---------------------|
* | I2C action | Data |
* |------------+---------------------|
* | Start | - |
* | Write | (reg_addr) |
* | Stop | - |
* | Start | - |
* | Read | (reg_data[0]) |
* | Read | (....) |
* | Read | (reg_data[len - 1]) |
* | Stop | - |
* |------------+---------------------|
*/
return rslt;
}
int8_t user_i2c_write(uint8_t dev_id, uint8_t reg_addr, uint8_t
*reg_data, uint16_t len)
{
int8_t rslt = 0; /* Return 0 for Success, non-zero for failure
*/
/*
* The parameter dev_id can be used as a variable to store the
I2C address of the device
*/
/*
* Data on the bus should be like
* |------------+---------------------|
* | I2C action | Data |
* |------------+---------------------|
* | Start | - |
* | Write | (reg_addr) |
* | Write | (reg_data[0]) |
* | Write | (....) |
* | Write | (reg_data[len - 1]) |
* | Stop | - |