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Kavin's avatar
Kavin
Icon for Occasional Contributor rankOccasional Contributor
6 years ago
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When using RSU, is it necessary to use an external trigger to trig FPGA to load application image?

I got some problems when using RSU in Cycone IV E device: 1: When using RSU, is it necessary to use an external trigger to trigger the FPGA to load the application image? I try to use logic to trig ...
  • JohnT_Altera's avatar
    JohnT_Altera
    6 years ago

    Hi,

    The pof_error only performed sanity check and not full check. So if the initial bitstream is correct then it will try to configure the FPGA with application image. The pof_error will only detect if there is some error on the initial bitstream.

JohnT_Altera's avatar
JohnT_Altera
Icon for Regular Contributor rankRegular Contributor
6 years ago

Hi,

The pof_error check will just performed sanity check and if it confirm that initial data contain valid bitstream then it will try to configure it to application image. If it is failed then it will reload back to factory image. May I know what mechanism or state machine you use to stop it from re-configuring it to application image?

Kavin's avatar
Kavin
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Hi,

There is nothing to stop it from re-configuring it to application image after reload. so you mean that a high level on pof_error will reload back to factory image,and after reverting to factory image,pof_error will goes low? so if there is no stop,it will stuck in the loop?