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No UART communication when flashing SPI with u-boot

Question asked by lluisgomez on Mar 27, 2014
Latest reply on Aug 23, 2014 by Vidya-S



I've flashed SPI with u-boot as follows:


cldp.exe -proc ADSP-BF609 -emu 100b -driver bf609_w25q32bv_dpia.dxe -cmd info -cmd prog -erase all -format bin -offset 0 -format bin -offset 0 -file u-boot-bf609-ezkit-spi-2013R1.ldr


The flahing command executes correctly and all seem ok, but when I boot the board with SPI boot mode I'm not able to comunicate with u-boot throught UART.


I'm totally blind at this point as I don't know how to debug the boot process ... Loading other ldr's from CSES examples work fine but there is also suspicious with the Power_On_Self_Test.ldr :


In this case I can see some leds in the board blinking, so I know the program is running but again no UART comunication.


Is there any way to debug what's hapening during the boot ROM execution?

Is there any other way to comunicate with u-boot?


Thanks in advance for any hint.


Best regards,