Monday, April 23rd 2018, 9:34pm UTC+2

You are not logged in.

  • Login
  • Register

Dear visitor, welcome to SEGGER Forum. If this is your first visit here, please read the Help. It explains how this page works. You must be registered before you can use all the page's features. Please use the registration form, to register here or read more information about the registration process. If you are already registered, please login here.



Date of registration: Apr 8th 2008

Posts: 2


Wednesday, April 9th 2008, 10:22am

J-Flash and AT91SAM9620-EK


I’m trying to use J-Flash (version 3.80b and beta 3.81f) with a SAM-ICE probe together with an AT91SAM9260-EK. When I open the project file “AT91SAM9260_CFI_1x16.jflash” that is installed under samples and try to connect I get the following error messages:

Bad JTAG connection: Write to IR: Expected 0x1, got 0xf (TAP Command : 15) @ Off 0x19FD
Bad JTAG connection: Write to IR: Expected 0x1, got 0xf (TAP Command : 15) @ Off 0x5
And after OK:

Could not find supported CPU core on JTAG chain. Failed to connect.

J-Link seems to recognize the core and gives me the following output. Also I’m able to read and write SDRAM content.

SEGGER J-Link Commander V3.81f ('?' for help)
Compiled Apr 2 2008 19:17:37

DLL version V3.81f, compiled Apr 2 2008 19:17:25
Firmware: J-Link compiled Mar 3 2008 19:52:16 ARM Rev.5

Hardware: V5.20

S/N : 20001090

Feature(s) : RDI

VTarget = 3.280V
JTAG speed: 5 kHz
Info: TotalIRLen = 4, IRPrint = 0x01
Info: CP15.0.0: 0x41069265: ARM, Architecure 5TEJ

Info: CP15.0.1: 0x1D112112: ICache: 8kB (4*64*32), DCache: 8kB (4*64*32)

Found 1 JTAG device, Total IRLen = 4:
Id of device #0: 0x0792603F
Found ARM with core Id 0x0792603F (ARM9)

J-Link>speed auto

Info: RTCK seems to be bridged with TCK

Info: Auto JTAG speed: 8000 kHz

JTAG speed: 8000 kHz

I tried to adapt the project settings (in a way that helped in other forum entries) but without success. Am I doing something wrong?


ps: Here is the log output of JFlash:

Application log started
- J-Flash ARM V3.81f (J-Flash compiled Apr 2 2008 19:17:59)
- JLinkARM.dll V3.81f (DLL compiled Apr 2 2008 19:17:25)
Reading flash device list [C:\Program Files\SEGGER\JLinkARM_V381f\ETC\JFlash\Flash.csv] ...
- List of flash devices read successfully (495 Devices)
Reading MCU device list [C:\Program Files\SEGGER\JLinkARM_V381f\ETC\JFlash\MCU.csv] ...
- List of MCU devices read successfully (236 Devices)
Opening project file [C:\Program Files\SEGGER\JLinkARM_V381f\Samples\JFlash\ProjectFiles\AT91SAM9260_CFI_1x16.jflash] ...
- Project opened successfully
Connecting ...
- Connecting via USB to J-Link device 0
- J-Link firmware: V1.20 (J-Link compiled Mar 3 2008 19:52:16 ARM Rev.5)
- Using adaptive clocking instead of fixed JTAG speed
- Initializing CPU core (Init sequence) ...
- ERROR: Failed to connect

SEGGER - Tobias

Super Moderator

Date of registration: Nov 27th 2007

Posts: 21


Tuesday, April 15th 2008, 5:29pm

Hi Uwe,

Do you have NOR flash on your eval. board ?
J-Flash can only be used to program NOR flash.

Best regards,



Date of registration: Apr 8th 2008

Posts: 2


Wednesday, April 16th 2008, 8:20am

Hi Tobias,

thanks for the info.

No, the At91SAM9260-EK starterkit is just equipped with 256 Mbyte NAND flash and a serial data flash, so both should not work with J-Flash. Is it planned to support NAND flash as well in future versions?