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eZ430-RF2480 HalSlaveReset

cimminop
Prodigy 70 points

Hi to all

I am using the eZ430-RF2480 SampleApp Firmware in order to fix it to my application. In particular I need to increase the throughput for continuous data transmission of ADC samples.

I saw that a bottleneck is due to halSlaveReset, which is put inside getSRDY1 function, used for rpc POLL command.

In particular it:

1) detects SRDY low

2) prepare POLL command buffer (cmd = 0x0000)

3) low MRDY

4) wait 10msecs

5) check SRDY: if high perform halSlaveReset, otherwise continue to perform the SPI POLL command

I debugged the program and sometimes I saw the code enters into halSlaveReset: it slows all.... I commented the step 5) and I had no problems during data transmission.

The question:

- how is possible that during POLL command (SRDY low and than MRDY high) the SRDY becomes high?

- which is the doc where is described the reset procedure and its reason?

- why network runs even if halSlaveReset is disabled?

Thanks a lot in advance for helping.

  • 0
    Intellectual 905 points

    Hi cimminop,

    You'll get details about all 3 commands (AREQ,SREQ,POLL) with signal graph in CC2480 Interface Specification pdf documentation. Just you are desabling in getSRDY1 function right?, there if u just check for SRDY also it'll work as u are doing now. But sometimes becoz of some pbm if SRDY is not low, if didn't use reset program ll stuck at that point only. So if its not low it'll do reset and executes again. As for of my knowledge concerned..... Hope u'll get a verified answer from TI persons.

    P