[SOLVED] flashing Olinuxino-RT5350F with ARM-USB-OCD

[vinczo]

Hi,

I'm trying to flash the Olinuxino-RT5350F with ARM-USB-OCD.

I connected both components as described here : https://www.olimex.com/wiki/images/5/51/Arm-usb-ocd.png
Note: didn't take the FSM050 component into consideration (what is it? is it important ?)

When I flash I get the following errors:

Code Select Expand

flashrom v0.9.9-r1954 on Linux 4.4.0-79-generic (x86_64)
flashrom is free software, get the source code at https://flashrom.org

Calibrating delay loop... OK.
Found Eon flash chip "EN25Q64" (8192 kB, SPI) on ft2232_spi.
Reading old flash chip contents... done.
Erasing and writing flash chip... FAILED at 0x000006d6! Expected=0xff, Found=0xe0, failed byte count from 0x00000000-0x00000fff: 0xd3
ERASE FAILED!
Reading current flash chip contents... done. Looking for another erase function.
FAILED at 0x0000076c! Expected=0xff, Found=0xfc, failed byte count from 0x00000000-0x0000ffff: 0x273f
ERASE FAILED!
...

I tried lowering the clock with the divisor option up to 100 !!! No change.

I've run the following command twice and got two different files read from flash.

Code Select Expand

sudo ./flashrom -p ft2232_spi:type=arm-usb-ocd -VVV -r dat.bin

My wires are 15cm male to female jumper wires. I changed them, no change.

What is wrong ?

Thanks.

[vinczo]

I figured out the error was bad voltage.
The voltage between Vref and GND showed 2.6 V.
I moved the blue wire (GND) to the UART (GND) and now it shows 3.3 V.

New output :

Code Select Expand

flashrom v0.9.9-r1954 on Linux 4.4.0-79-generic (x86_64)
flashrom is free software, get the source code at https://flashrom.org

Calibrating delay loop... OK.
Found Eon flash chip "EN25Q64" (8192 kB, SPI) on ft2232_spi.
Reading old flash chip contents... done.
Erasing and writing flash chip... Erase/write done.
Verifying flash... VERIFIED.

SUCCESS!!

To the Olimex staff, you should update the cabling ...

[LubOlimex]

Great. Thanks for sharing your experience.

In the picture the blue wire goes to GND (pins #4, #6, #8, #10, #12, #14, #16, #18, #20); did you connect it to pin #19 initially?

Maybe the picture is not clear.

[vinczo]

Hi Lub,

I connected GND to the pin #20 only initially. I didn't connect the other pins, because I thought they are all connected internally. Did I think wrong?

Here's my current cabling :
http://hpics.li/f90f4c4
http://hpics.li/b4b8c08

Cheers,
vinczo