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  3. [SOLVED] ISCP programming with radio attached

[SOLVED] ISCP programming with radio attached

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  • E Offline
    E Offline
    elcaron
    wrote on last edited by Yveaux
    #1

    I got feedback for my project that programming via ICSP is not possible with the RFM69 radio attached. Since it is basically SPI, I don't really see a reason for that. Can anybody explain that? Do I need to pull CS for the radio high, maybe, or is there something deeper to it?

    MiKaM 1 Reply Last reply
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    • scalzS Offline
      scalzS Offline
      scalz
      Hardware Contributor
      wrote on last edited by scalz
      #2

      yes, in general, a good practice for SPI is to use a pullup for CS, preventing unattended behaviour.
      http://hackaday.com/2014/11/25/better-spi-bus-design/

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      • E elcaron

        I got feedback for my project that programming via ICSP is not possible with the RFM69 radio attached. Since it is basically SPI, I don't really see a reason for that. Can anybody explain that? Do I need to pull CS for the radio high, maybe, or is there something deeper to it?

        MiKaM Offline
        MiKaM Offline
        MiKa
        wrote on last edited by
        #3

        Problem solved with pull-up! Thanks!

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