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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
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I would appreciate if you help me to fix the board
So the processor on the board is non-responsive to JTAG/SWD connectivity...
Would suggest you talk the board vendor, review the board documentation and schematics to understand what your configuration/control options are, and review your chip documentation to understand it's boot and startup options.