|ARM Technical Support Knowledge Articles|
Applies to: ULINK USB-JTAG Debugger
Information in this article applies to:
I have problems with a Philips LPC2106 when using the secondary JTAG with the ULINK USB-JTAG Adapter. uVision gives me the message:
Couldn't stop the ARM device. Check the JTAG cable
Debugging with secondary JTAG on LPC2104, LPC2105, or LPC2106 requires the following steps:
; Pin definitions PINSEL1 EQU 0xE002C004 ; PINSEL1 Address PINSEL1_Val EQU 0x55400000 ; Secondary JTAG LDR R0, =PINSEL1 LDR R1, =PINSEL1_Val STR R1, [R0]
In case that this code is erased (by accident or chip erase) and the primary JTAG is not available in your hardware design, then the only way to reprogram this startup code is to use the Philips serial ISP loader.
Article last edited on: 2007-01-28 19:21:41
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