Hello. I have made a simple Header Board with AT91SAM7S Chip. I am trying to enable RS232 SAM-BA with my SAM7S Header Board. I have a working MAX232 Board and I am interfacing that Board with SAM7S debug Interface. My Connection is below presented: VDDIN, VDDFLASH, VDDIO Connected Together ---> 3.3V VDDOUT, VDDPLL, VDDCORE Connected Together ---> 4.7uF Cap ---> GND PIN2 Ground --- GND XTAL 18.432MHz Connected with XIN, XOUT (No Load Capacitor with XTAL) MCU DRXD (PIN29) ---> MAX232 RX & MCU DTXD (PIN30) ---> MAX232 TX I POWERED OFF my Board and Connect TST PIN with 3.3V then POWER ON for 10 Sec, then POWER OFF the Board, Disconnect TST PIN, then POWER the Board again. When I am running SAM-BA then it reports "Failed to Initialize FLASH Accesses". I am using SAM-BA v 2.10 (Downloaded from ATMel's web site), installed on Windows XP SP2 . Can anyone suggest me how to resolve the problem ... Thanks in advance. Regards. Sakibnaz.
Hello. Thanks for your reply. My Header Board is of SAM7S64 and I am using USB-Serial Cable which is installed as COM2. So I chooses on SAM-BA, COM2 and AT91SAM7S64-EK. I am facing this error "Failed to Initialize FLASH Accesses" from few days, please help me out ... Awaiting for your reply. Regards. Sakibnaz.
do you have the evalboard from atmel (AT91SAM7S64-EK) or a custom board?
Hello. My Problem is solved. Now I can able to program the MCU via RS232 Debug Interface. Using the SAM-BA version 2.9 I can access the Bootloader. I am using a custom Header Board of AT91SAM7S. Thanks. Regards. Sakibnaz.
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