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Altera_Forum
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8 years ago

A10 HPS not booting from micro SD card - NRST pulsing

Hello, I have a custom A10 prototype PCB, and I'm trying to bring up the HPS. I am building the preloader/uboot using the BSP-Editor and writing the output to a partition on a micro sdcard (sa...
Altera_Forum's avatar
Altera_Forum
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8 years ago

If the NRST is pulsing, it is probably caused by the Boot ROM not being able find a boot image, thus the watchdog will just wait and then issues a reset. If you have a JTAG connection, you can use a debugger (such as DS-5), loads the uboot directly onto the on-chip RAM (you can use the .ds script that was generated). If this is successful (meaning, uboot is able to run) you probably need to double check your hardware