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CCS/RF430FRL152H: Could not write to the devoce

salman khan
Prodigy 30 points
Part Number: RF430FRL152H

Tool/software: Code Composer Studio

Hello, 
I was using RF430FRL152H GUI interface to change the register frequency of RF430FRL152HEVM and patch. 
I have few doubt 
1- How can I verify that frequency has been changed? because the demo is set to twice a second.

2- Is it going to affect the power consumption of MCU?
3- I came to know that same chip is used in freestyle libre glucose senor. Can I change the register frequency of that sensor using this interface (without programming)?

4- Now GUI interface is start to show, could not write/read to the device.

I can not understand what happened. 

  • 0
    TI__Mastermind 18265 points

    Hi Salman,

    1. One way is to read back the register settings. In case you do not trust the settings and want verify it, you can apply a slow known voltage ramp to the ADC input and check the measured results.

    2. During the time the ADC is active the MCU will be in low power mode, but and if the conversion is finished the MCU has to transfer the result to the FRAM. When having a higher frequency this will wake the MCU more often and will affect the power consumption.

    3. The Freestyle Libre is NOT using the same device. The devices are different in their interfaces and the build in software.

    4. In case you can no more access the EVM board it would be necessary to reprogram the device via JTAG. You will need the TI JTAG tool and the free CCS compiler.

    Best regards,

    Helfried