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WabG
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1 year ago

SoC Cyclone V : Configure FPGA fabric SPI Flash from HPS ?

Hello, We need to update the SPI Flash used to configure the FPGA fabric of a Cyclone V SoC but the only communication channel available is the ethernet interface. We can upload the configuration t...
Fpga Devkit
WabG's avatar
WabG
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1 year ago

Hi,

We are thinking about the 2nd solution because we don't have access to the JTAG.

Below would be the solution principle where we use OpenOCD to read the rbf file /send JTAG commands and a custom gateway to capture the OpenOCD command through a virtual port :

Does it looks feasible, any remarks ?

Regards,

WabG

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WabG
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1 year ago

As we have the component JTAG-UART instantiated in the SoC, another solution could be the figure below ?

A pre-requisite would be to configure JTAG-TAP (with scan manager) to not use external pins of JTAG.

What do you think of this solution ?

Regards,

WabG