hi I am using a cc2650 to interface with LMP91000. I am having trouble writing to the registers of the LMP.
I can write without any errors to the Lock register. but when I want to write to the TIACN or MODECN register I get a Data not acknowledge error.
Thanks
Mustahsin
Code:
while (1) {
Task_sleep((UInt)arg0);
I2C_init();
I2C_Handle handle;
I2C_Params i2cParams;
I2C_Transaction i2cTrans;
uint8_t rxBuf[32]; // Receive buffer
uint8_t txBuf[32]; // Transmit buffer
// Configure I2C parameters.
// I2C_Params.I2C_TransferMode=I2C_MODE_CALLBACK;
I2C_Params_init(&i2cParams);
// Initialize master I2C transaction structure
I2CCC26XX_I2CPinCfg pinCfg;
pinCfg.pinSDA = Board_I2C0_SDA0;
pinCfg.pinSCL = Board_I2C0_SCL0;
i2cParams.custom = &pinCfg;
handle = I2C_open(Board_I2C, &i2cParams);
I2C_open(Board_I2C, &i2cParams);//
i2cTrans.writeCount = 2;
i2cTrans.writeBuf = txBuf;
txBuf[1]=0x00;
txBuf[10]=0x00;
/*
uint32_t i = 0;
for (i; i < 10; i++)
{
txBuf[9] = 1;
}
*/
i2cTrans.readCount = 0;
i2cTrans.readBuf = rxBuf;
i2cTrans.slaveAddress = 0x48;
I2C_transfer(handle, &i2cTrans);//
uint16_t register_status[10] ;
uint16_t count = 0;
for (count;count <10; count++)
{
register_status[count]=rxBuf[count];
}
// uint16_t register_status_1 = rxBuf[1];
// uint8_t a ;
if (I2C_transfer(handle, &i2cTrans) == I2C_STATUS_SUCCESS) {
PIN_setOutputValue(ledPinHandle, Board_LED0, 1);
// System_flush();
}
I2C_close(handle);
Task_sleep((UInt)1000);
