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Hi,

i think it would be better for you if you take the eZ430-RF2500 Sensor Monitor Demo (http://www.ti.com/litv/zip/slac139f), it does pretty much the same what you are trying to do. Altough the demo was made for the dual chip solution on eZ430-RF2500 (MSP430F2274+CC2500), on application level, the code should be usable for different platform.

Regarding the ADC sampling code, you can refer to the CC2510 basic example source code (http://www.ti.com/litv/zip/swrc117).

Hope this helps.

Hi,

Siti Khairuni Amalina Kamarol

Thank you very much. They are very helpful. In the main_ED.c file of the eZ430-RF2500 Sensor Monitor Demo, there is a part about creating random address. Is that necessary?

No, it is not necessary. You can also remove the following codes for example for the main_ED.c:

  /* Check flash for previously stored address */
  if(Flash_Addr[0] == 0xFF && Flash_Addr[1] == 0xFF &&
     Flash_Addr[2] == 0xFF && Flash_Addr[3] == 0xFF )
  {
    createRandomAddress(); // Create and store a new random address
  }

  /* Read out address from flash */
  lAddr.addr[0] = Flash_Addr[0];
  lAddr.addr[1] = Flash_Addr[1];
  lAddr.addr[2] = Flash_Addr[2];
  lAddr.addr[3] = Flash_Addr[3];

  /* Tell network stack the device address */
  SMPL_Ioctl(IOCTL_OBJ_ADDR, IOCTL_ACT_SET, &lAddr);

This will cause the stack to use the default address of the THIS_DEVICE_ADDRESS definition in the .dat file. But be careful that the each node in SimpliciTI network must have unique address, which means you have to change the THIS_DEVICE_ADDRESS defintion each time you compile the code for each node.

Siti Khairuni Amalina Kamarol

For the interrupt used in the eZ430-RF2500 Sensor Monitor Demo, how can I define the sampling time? For example I want to take 20 samples per second for temperature measurement.

To do this, basically this part of the code which you have to modified:

  /* Initialize TimerA and oscillator */
  BCSCTL3 |= LFXT1S_2;                      // LFXT1 = VLO
  TACCTL0 = CCIE;                           // TACCR0 interrupt enabled
  TACCR0 = 12000;                           // ~ 1 sec
  TACTL = TASSEL_1 + MC_1;                  // ACLK, upmode

It uses Timer_A CCR0 interrupt to generate interrupt after 12000 VLO clock cycles (assuming VLO is 12 kHz). However since VLO is by nature a very unprecised clock source, the period might differ between devices.

More information can be found in the MSP430x2xx Family Users Guide:

http://www.ti.com/lit/ug/slau144i/slau144i.pdf

- chapter 5 about VLO

- chapter 12 about Timer_A.

Hope this helps.

-Leo-

Hi,

sorry to miss that you are using CC2510. I am not really familiar with CC2510 as i am with MSP430, but i think there is example codes which you can download here:

http://www.ti.com/litv/zip/swrc117

I found an example code t1_free.c which should do pretty much what you need.

Hope this helps.

Hi, thanks for your help. I can't open the link you gave me.

Hi,

sorry for the link. it is fixed now.

Hi,

I am using SMARTRF Packet Sniffer to capture the packets. How can I extract data from Packet Sniffer?