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Discussion Groups | AT91SAM ARM | Re: Trouble in SAM-BA programming
For users of the Atmel AT91SAM7 and AT91SAM9 ARM CPU chips. Atmel has taken a new direction by combining on chip flash and ram with the ARM CPU on a single die. This provides low cost devices for small systems using the ARM CPU. This group is to exchange information to help users get started and learn how to use the devices.
Re: Trouble in SAM-BA programming - vinaydand - Aug 19 11:44:59 2008
Hello,
1) Try with 40 Sec. instead of 10 sec - to allow more time for SAM-
BA bootloader to be transfered to RAM
Regards
Vinay
--- In A...@yahoogroups.com, "s_samiee_s" wrote:
>
> Hi,
>
> I'm new to the group and here is my first question.
>
> I've built a custom board with the AT91SAM7S and tried to program
it
> using SAM-BA v2.6 (with USB connection).
>
> My board has following features:
> - Pull-up on PA0/1/2
> - USB pull-up controlled by PA16
> - TST switchable to high for bootloader recovery
> - 18.432 XTAL
>
> I performed the bootload copy by connecting TST pin to VCC, applied
> power,wait 10 seconds, power down.
>
> but after that when I connect the board to PC it says "USB device
not
> recognized".
> and when I run SAM-BA there is only COM ports in the list and I
can't
> find and select USB connection.
>
> I checked my board,but nothing was wrong!
>
> Is there any way to check if the board enters SAM-BA boot
recovery?
> Regards,
> Sara
>
------------------------------------
(You need to be a member of AT91SAM -- send a blank email to AT91SAM-subscribe@yahoogroups.com )
1) Try with 40 Sec. instead of 10 sec - to allow more time for SAM-
BA bootloader to be transfered to RAM
Regards
Vinay
--- In A...@yahoogroups.com, "s_samiee_s"
>
> Hi,
>
> I'm new to the group and here is my first question.
>
> I've built a custom board with the AT91SAM7S and tried to program
it
> using SAM-BA v2.6 (with USB connection).
>
> My board has following features:
> - Pull-up on PA0/1/2
> - USB pull-up controlled by PA16
> - TST switchable to high for bootloader recovery
> - 18.432 XTAL
>
> I performed the bootload copy by connecting TST pin to VCC, applied
> power,wait 10 seconds, power down.
>
> but after that when I connect the board to PC it says "USB device
not
> recognized".
> and when I run SAM-BA there is only COM ports in the list and I
can't
> find and select USB connection.
>
> I checked my board,but nothing was wrong!
>
> Is there any way to check if the board enters SAM-BA boot
recovery?
> Regards,
> Sara
>
------------------------------------
(You need to be a member of AT91SAM -- send a blank email to AT91SAM-subscribe@yahoogroups.com )
Re: Trouble in SAM-BA programming - s_samiee_s - Aug 19 23:50:37 2008
--- In A...@yahoogroups.com, "vinaydand" wrote:
>
> Hello,
>
> 1) Try with 40 Sec. instead of 10 sec - to allow more time for SAM-
> BA bootloader to be transfered to RAM
>
> Regards
> Vinay
I tried with 1 min before, but nothing changed!
Sara
------------------------------------
(You need to be a member of AT91SAM -- send a blank email to AT91SAM-subscribe@yahoogroups.com )
>
> Hello,
>
> 1) Try with 40 Sec. instead of 10 sec - to allow more time for SAM-
> BA bootloader to be transfered to RAM
>
> Regards
> Vinay
I tried with 1 min before, but nothing changed!
Sara
------------------------------------
(You need to be a member of AT91SAM -- send a blank email to AT91SAM-subscribe@yahoogroups.com )