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FLembcke's avatar
FLembcke
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1 year ago

MAX5 CFM access?

In the past I managed to reprogram a Cyclone V / the connected EPCQ flash from within the running firmware (new image was received via SPI and then stored in the EPCQ flash using a megafunction to ac...
Fpga Devkit
FLembcke's avatar
FLembcke
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1 year ago

Thanks for the very quick reply.

given your information, I'll need to control the JTAG pins (from an external source, we got a microcontroller which could receive the image via ethernet and then send it via JTAG) to remotely program the MAX5 (we are looking for a solution to apply an update for devices once they are shipped / where we cannot connect a JTAG probe / byte blaster anymore).

I believe this got easier in MAX10 devices, correct?

Kind regards,
Felix

WZ2's avatar
WZ2
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1 year ago

Hi there,

That is correct, because in MAX10, it can use the On-Chip Flash Intel® FPGA IP Core and do Remote system upgrade. Here is two link of example design for MAX10's RSU, one is for uart, the other is for I2C.

UART:https://www.intel.com/content/www/us/en/design-example/714833/intel-max-10-fpga-intel-max-10-fpga-remote-system-upgrade-rsu-over-uart-for-the-nios-ii-processor-design-example.html

I2C : https://www.intel.com/content/www/us/en/design-example/714746/intel-max-10-fpga-i2c-remote-system-update-design-example.html

Best regards,

WZ

  • FLembcke's avatar
    FLembcke
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    1 year ago

    Since changing to MAX10 would need a complete redesign of our PCB I'll try to focus on a solution using the existing MAX5 design.
    I found some valuable information about JTAG here:
    1.7.2. Steps to Port the Jam STAPL Byte-Code Player (intel.com)

    So from what I can grasp, the steps would be:
    Convert MAX5 .pof file to .jbc
    Transfer .jbc file to our microcontroller which has a direct connection (via GPIO) to the MAX5 JTAG pins
    Use the Jam STAPL Byte-Code Player (C code / library) to program the MAX5

    Are there any additional steps I missed?

    Kind regards,
    Felix