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Altera_Forum
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8 years ago

HPS boot from SDCARD with pins routed to FPGA

Hello, Does anybody could help me telling if is it possible to boot HPS from SDCARD (bootsel = 0x05), with SDCARD pins routed to FPGA (assume FPGA is already configured when HPS boot). I supposed...
Altera_Forum's avatar
Altera_Forum
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8 years ago

Hello, I believe this is not possible. The BSEL of 0x05 is meant to tell the Boot ROM to set up the necessary HPS IO and copy the preloader to be executed on On-chip RAM. As such, I don't think the Boot ROM has the ability to look for the preloader from the FPGA I/O. Nonetheless, you can set the device to boot from FPGA on chip RAM instead - which is actually quite easy to be done.