Compiler/CC2541: cc2541

i can't read anything :(

i use this board hm10 cc2541

Hi Phan Lam,

Why do you not use hal_i2c of TI for CC254x ?
And I dont understand your code.
You can start with SimpleBLEPeripheral to study with ble stack of CC2541.
If you want a example of i2c on cc2541, you can use Sensortag example

Hi Phan,

You should definitely use the HAL Driver code - see the Software Developer's Guide and the HAL Driver API @ C:\Texas Instruments\BLE-CC254x-1.4.2.2\Documents

Also if the cost of IAR is an issue, you could get a CC2650 or CC2640R2F Launchpad and use CCS, it's free !

Regards,
Rebel

em đã thử dùng các thư viện hal.nhưng ngoài thư viện hal_led ra thì em ko dùng đc cái nào khác :(. nên đọc datasheet rồi code thanh ghi, cũng code đc timer và uart thì có vẻ thấy cái này ok hơn.nhưng I2c thì khó hơn hẳn.
a có thể chỉ em cách dùng hal đc ko . em đã define trong processor các thứ mà ko rõ lắm. em cảm ơn

Hi Pham Lam,

Now, I rarely use CC2541 because CC2650 is better. This is my old code for last year. You can download hal_i2c.h and hal_i2c.c in attached file.
You can open SimpleBLEPeripheral example. And write a i2c test code in SimpleBLEPeripheral_init function.

void I2CWriteData(uint8 Command,uint8 Data)
{
  uint8 pBuf[2];
  pBuf[0] = Command;
  pBuf[1] = Data;
  HalI2CWrite(2,pBuf);
}
uint8 I2CReadData(uint8 Command)
{
  uint8 pBuf[1];
  uint8 pBufR[1];
  pBufR[0] = 0x00;
  pBuf[0] = Command;
  HalI2CWrite(1,pBuf);
  HalI2CRead(1,pBufR);

  return(pBufR[0]) ; 
}
uint8 lis2hd_who()
{
  HalI2CInit(LIS2DH_DEFAULT_ADDRESS, (i2cClock_t)i2cClock_267KHZ);

  if(LIS2DH_I_AM_MASK == I2CReadData(LIS2DH_WHO_AM_I))
  {
    HalI2CDisable();
    return(1);
  }
  HalI2CDisable();
  return(0);
}

hal_i2c.rar