EmbDev.net

Forum: µC & Digital Electronics when code runs from SDRAM,Flash Init does not work

when code runs from SDRAM,Flash Init does not work
Author: Vani Aithal (blquest)
Posted on: 
Hi,



We are using AT91SAM9263 processor.We are utilizing

1. ROMBoot to copy bootstrap(Atmel supplied) into internal SRAM.

2. bootstrap code(Atmel supplied) copies the data flash contents to
SDRAM and then executes from there.

While we are running our application in SDRAM,if we want to load a new
application in Flash, J-Link is not able to initialize the flash to gain
access to program the device.

Please help us by providing the reason for this behaviour as well as the
solution if any.

your reply awaited.

Thanks
Report post | Edit | Move | Thread sperren | Delete topic | Reply | Reply with quote
Re: when code runs from SDRAM,Flash Init does not work
Author: no one (Guest)
Posted on: 
Maybe u disabled the JTAG in ur code?

what about the AT91SAM9 manual ... there should be some paged about the
boot strategies.

Aren't there any pins to configure the first boot source? U could point
at a non working source and than try to flash.

good luck
Report post | Edit | Delete | Reply | Reply with quote
Enable email notification | Enable multi-page view

Reply

Entering an e-mail address is optional. If you want to receive reply notifications by e-mail, please log in.

Rules — please read before posting

  • Post long source code as attachment, not in the text
  • Posting advertisements is forbidden.

Formatting options

  • [c]C code[/c]
  • [avrasm]AVR assembler code[/avrasm]
  • [code]code in other languages, ASCII drawings[/code]
  • [math]formula (LaTeX syntax)[/math]





webmaster@embdev.net – Contact – Advertising on EmbDev.net