CodeWarrior Development ToolsのトピックRe: CodeWarrior Tap GDB server gives error when executing -data-evaluate-expression

CodeWarrior Tap GDB server gives error when executing -data-evaluate-expression

zwilcox — Wed, 21 Nov 2018 00:08:13 GMT

I'm connected to the GDB remote server on the code warrior tap to debug the QorIQ® P1021|NXP :

I get the following error when running -data-evaluate-expression (uart)->rx_tx_dll

Failed to execute MI command:
-data-evaluate-expression (uart)->rx_tx_dll
Error message from debugger back end:
Cannot access memory at address 0xef004500

I get this in both Eclipse and GDB in the terminal.

You're help would be appreciated.

Thanks

Zach

Re: CodeWarrior Tap GDB server gives error when executing -data-evaluate-expression

ZhangJennie — Wed, 21 Nov 2018 02:29:55 GMT

What's your chip part number?

Best Regards

Jennie Zhang

Re: CodeWarrior Tap GDB server gives error when executing -data-evaluate-expression

zwilcox — Wed, 21 Nov 2018 04:00:29 GMT

Oh crap. Sorry. I'm using the P1021. I've edited my post to include it.

Re: CodeWarrior Tap GDB server gives error when executing -data-evaluate-expression

zwilcox — Mon, 26 Nov 2018 16:28:02 GMT

I however think this is more of a problem with the GDB server on the CodeWarrior Tap then the chip I'm using.

Re: CodeWarrior Tap GDB server gives error when executing -data-evaluate-expression

ZhangJennie — Tue, 27 Nov 2018 06:13:34 GMT

This question was transferred to CW for DN engineer, she will answer you.

Re: CodeWarrior Tap GDB server gives error when executing -data-evaluate-expression

zwilcox — Tue, 27 Nov 2018 16:06:32 GMT

Thank you sir :smileyhappy:

Re: CodeWarrior Tap GDB server gives error when executing -data-evaluate-expression

zwilcox — Fri, 30 Nov 2018 19:51:43 GMT

I've replicated this problem using GDB 7.3, 7.3.1, and 8.2

Re: CodeWarrior Tap GDB server gives error when executing -data-evaluate-expression

zwilcox — Fri, 30 Nov 2018 19:53:09 GMT

The problem also occurs when trying to manually read a memory address

x 0xef004500
0xef004500: Cannot access memory at address 0xef004500

Re: CodeWarrior Tap GDB server gives error when executing -data-evaluate-expression

yipingwang — Tue, 19 Feb 2019 09:22:36 GMT

Hello Zachary Wilcox,

Probably you created your CodeWarrior initialization file based on P1021RDB, please refer to the following memory map of P1021RDB, the address 0xef004500 is not defined MMU TLBs configuration at all, so this address is not accessible.

#   Memory Map
   #
   #   0x00000000 0x3FFFFFFF DDR3               1G
   #   0x80000000 0x9FFFFFFF PEX1               512MB
   #   0xA0000000 0xBFFFFFFF PEX2               512MB
   #   0xE0000000 0xE01FFFFF CCSR                 2M
   #   0xEFA00000 0xEFA1FFFF CPLD                128k
   #   0xEFC00000 0xEFC1FFFF PEX I/O            128k
   #   0xEFF00000   0xEFF0FFFF NAND                64k
   #   0xFF000000   0xFFFFFFFF LocalBus NOR FLASH   16M

Thanks,

Yiping