FX3 JTAG SEGGER

gean_3054931 · ‎May 14, 2019

Hello,

I am using JLINK BASE with cypress EZ USB sdk .I am getting ERROR: Bad JTAG communication: Write to IR: Expected 0x1, got 0x7 (TAP Command : 15) @ Off 0x1157.

why this eeror ?I am not able to do debug the program.

for some application,it will not thrown ERROR: Bad JTAG communication: Write to IR: Expected 0x1, got 0x7 (TAP Command : 15) @ Off 0x1157.

but it will show starting target cpu..(as shown in the attached snap).after this,there is further debug(there is no further stepover option).help me.

thank you.

KandlaguntaR_36 · ‎May 21, 2019

Please set the following breakpoints in the firmware and do stepover at KernelEntry

By default the debugger stops at Main.

1. Put a break point at application define function (CyFxApplicationDefine)

2. Otherone at Thread_Entry function (for example - UVCAppThread_Entry in UVC An75779 firmware )

After this, if you do stepover at kernelentry, it will take you to Application Define. Then it will take you to Thread_Entry.

Hope this solves your problem.

I have tested at my end. It is working fine.

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FX3 JTAG SEGGER

FX3 JTAG SEGGER

Re: FX3 JTAG SEGGER