J-Flash & Flasher ARM

[thomas]

Hi

I try to program my custom board using J-flash and Flasher ARM ( for production ). Attached my J-flash configuration.

Connection with device is successful established but when i want to program hex or to erase chip, soft return the following error : "RAM Check failed"

J-flash logs :

Connecting ...
 - Connecting via USB to J-Link device 0
 - J-Link firmware: V1.20 (J-Link ARM / Flasher ARM V4 compiled Jan  7 2014 15:36:27)
 - JTAG speed: 5 kHz (Fixed)
 - Initializing CPU core (Init sequence) ...
    - Initialized successfully
 - JTAG speed: 5 kHz (Auto)
 - Connected successfully
Erasing chip ...
 - Erasing 257 sectors, 2 ranges, 0x0 - 0x3FFFF, 0x10001000 - 0x100013FF
 - ERROR: RAM check failed @ address 0x20000000.
 - ERROR: Write: 0x03020100 07060504
 - ERROR: Read: 0x00000000 00000000
 - ERROR: (0 bytes of RAM have been checked successfully)
 - ERROR: Failed to erase chip
Disconnecting ...

[Nguyen Hoan Hoang]

I find that segger software is very buggy and unreliable. I found the only one works all the time for me is the jflashlite.exe. You can download it from segger website.

[Hung Bui]

Hi Thomas, I found that you used pretty slow SWD speed (5kHz) could you change it to 2000kHz for both before and after init option and let me know the result ?

[thomas]

Hi, Same issue...

[thomas]

Ok it was an hardware issue

Thanks