HI, I have keil Version 4.74 and Segger v5.00e after connecting my landtiger board (LPC1768 as developer core and stm32f103c8t6 as debugger chip for j-link). it asked to update the firmware but after that I'm not able to connect to my board and download code to flash memory and says

DLL: V5.00e, compiled Jun 23 2015 18:28:39
Firmware: J-Link ARM-OB STM32 compiled Aug 22 2012 19:52:04
Hardware: V7.00
S/N : xxxxxxxx
Feature(s) : RDI,FlashDL,FlashBP,JFlash,GDBFull

* JLink Info: TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
Error: Flash Download failed - Target DLL has been cancelled

Here I put the image of options and Error message

[img]http://anonfiles.co.uk/image.php?di=S5NM[/img]
[img]http://anonfiles.co.uk/image.php?di=CUP1[/img]
[img]http://anonfiles.co.uk/image.php?di=TTRU[/img]
[img]http://anonfiles.co.uk/image.php?di=XZYG[/img]

I would appreciate if you help me to fix the board

BTW I testes with other version of j flash but nothing happened.

is it possible to downgrade my board in order to fix it !!