uMon

[zubir]

Hello,

I just bought a vc21 portable computing cog. I was trying to flash
umon to my vcmx212 and i have followed the step below from this
website: http://wiki.virtualcogs.com/index.php?title=Uploading_and_Reflashing_uMon_%28Bootloader%29

Flashing uMon
1. Close the boot jumper (JP300) on the VCMX212 board
2. Connect the board to your host PC using the USB cable
3. Load ramtst.bin onto your vcmx212 board using the Freescale HAB
Toolkit. This version runs from RAM and lets you load in the boot.bin
image into FLASH. The starting address is 0xc0000000. Alternatively,
you can load the code over JTAG if you have GDB and OpenOCD
configured.
4. Start hyperterminal. Go to File and Properties.
5. In the Connect Using box, choose the COMx port that corresponds to
your VCMX212. Click Configure and set the port settings as
230400,8,none,1,none then click OK
6. Click the Call button and then press ENTER. You should see the uMon
prompt “umon>”
7. Type at the prompt "flash unprot all"
8. Type at the prompt "flash erase 0-16"

I have succeed until step 8, but after step 9 the umon prompt never
came out again, the lcd seems didn't get any power supplied.

What should I do?Please help me.

thanks

[Tarun Tuli]

Hello Zubir.

Are you certain you are using the correct version of the ramtst.bin
and boot.bin files? There are two different ones depending on the
type of FLASH memory on your board. If you recently bought your
board, it most likely has the STmicro flash and not the Toshiba.

-Tarun

[zubir]

Hello Mr Tarun,

I am certain that i am using the correct version of ramtst.bin and
boot.bin. My board used ST flash memory. When I plugged usb cable, the
three LEDs just keep turn on even after I pushed the reset button.Is
my board broken?

I've once type "startlinux" at uMon prompt and its work. but after I
follow the steps I mentioned earlier, the uMon prompt never appeared
again.

I've tried to erase the flash using "flash_erase.bin" and reload the
umon, it doesn't work either.

-zubir

On Jun 23, 7:12 pm, "Tarun Tuli" <ta...@virtualcogs.com> wrote:
> Hello Zubir.
>
> Are you certain you are using the correct version of the ramtst.bin
> and boot.bin files? There are two different ones depending on the
> type of FLASH memory on your board. If you recently bought your
> board, it most likely has the STmicro flash and not the Toshiba.
>
> -Tarun
>

> On Sun, Jun 22, 2008 at 11:06 PM, zubir <zubir...@gmail.com> wrote:
>
> > Hello,
>
> > I just bought a vc21 portable computing cog. I was trying to flash
> > umon to my vcmx212 and i have followed the step below from this

> > website:http://wiki.virtualcogs.com/index.php?title=Uploading_and_Reflashing_...

[Tarun Tuli]

Hi Zubir.

I'm trying to fully understand your problem. When you load ramtst.bin
using the HAB toolkit, do the LEDs ever go off? Is it -both- the
ramtst.bin and boot.bin that isn't working? Or is it just that the
boot.bin isn't working?

-Tarun

[zubir]

Hello Mr Tarun,

The LED never go off when I load ramtst.bin and boot.bin. I don't
really know which file isn't working. Perhaps my HAB toolkit is not
working. I cannot follow the procedure to install HAB toolkit properly
but the i.MX21_HAB_Toolkit_v2.3.exe still there so I still can use it.
Everytime I execute the code, i got a warning error "Executed Failed".

-Zubir