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uni-ds3 LPC2148 MCU with ULINK2 Config. Fails

nehal yousry

Hello ,

my SW Environment is

-uvision 5

My HW Environment is

-Development Board : UNI-DS3 based on LPC2148 Board from MicroElectronika

-ULINK2 JTAG adapter from Keil

My HW Setup :
=============
1- placing Jumpers J1-J7 to JTAG position in MCU card

**MikroElectronika mentions nothing else
-------------------------------------------
My SW configuration :
=====================
1- options for Target -> Debug -> Use :ULINK2/ME ARM Debugger settings ->MAX JTAG Clock = 50KHZ
(i used different High/low speed ,no effect)
2- -> use nTRST
3- -> use cache options
4- -> Verify Code Download
5- -> Chain: Manual Configuration (IDCODE ,Device Name , IR len)=(0x0F1F0F0F0 , ARM7TDMI-S Core , 4)
(i used automatic detection , gives me : "NO JTAG Devices Found" )
should it be two chains or just one chain of arm core?
6- -> Utilities -> Use Target Driver for Flash Programming
7- -> use Debug Driver
8- ->settings -> i used default settings for programming algorithm
9- -> check program/verify/Reset and Run

So , step 8,9 is the real actions of FLASHING not step 4 ?

** i followed ULINK2 User Guide
** some other tutorial settings

------------------------------------------------
Result of these settings when press debug :
===========================================

Could Not Stop ARM Device , please check JTAG Cable

----------------------------------------------
What could be wrong settings
Is there Semi-agreed Debug settings for supported processors and MCUs
i'm afraid it's HW problem between JTAG and JTAG module in MCU (signal incompatibility, missing Component,...)

i would not be able to solve HW problems if Exist

Thanks and Regards ,

Parents Reply Children
  • 0 in reply to Gary Olson

    Hello,sorry for let u misunderstand

    My first case is board position for j10 let jtag itself detected but could not stop the cpu
    But when I set j10 for vbus pos. Ulink issues "no jtag device found"
    So , position not affecting solution

    Thanks and best regards

  • 0 in reply to nehal yousry

    What is J8 and J9 position?

    www.keil.com/.../

    According to that thread:

    "Check the pin P0.31, if you pull them down at reset, JTAG pins disabled"

  • 0 in reply to Gary Olson

    Hello,

    regarding J8,J9 position (it was in "CONNECT" position)
    but it seems to me(from schematics) that p0.31 would not be low.

    my update now

    1- i replace MCU card itself with another one(problem seems to be with old MCU)
    2- remove jumpers J10 ,J8,J9(till now could not know what are their effect to JTAG accessibility )
    3- use ARMFlash to download program (due to strange behaviour when use ULINK2 flash driver for programming)
    4- finally use ULINK2 to attach to the program

    it successfully attaches and start debugging (in disassembly only)

    anyway , it's satisfied for me for now

    Many thanks for help and Best Regards :) ,

  • 0 in reply to nehal yousry

    Hello,
    i need to know if "breakpoints is disabled in C-code and it has been ignored in stepping too" is related to JTAG drivers or IDE Debug-functionalities with JTAG HW

    notes :
    -stepping in Simlator works fine in C and Disassembly
    -i checked related threads in forum but in vain

    Many Thanks and Best Regards,