Re: [OpenOCD-devel] Support for IMX8QM

[Oliver G. <oli...@gm...>]

On 19/02/21, Tommy Murphy wrote:
> I'm not sure that you have to adjust the scripts at all?
> E.g. this shows how to target that device using jlink.
> 
> https://community.nxp.com/t5/i-MX-Processors/How-to-JTAG-debug-iMX8mq/m-p/837227

The imx8mq and the imx8qm are not the same.  The naming is a bit
confusing here. The distinguish on amount of cores but are part from
same CPU/SOC familiy. 

> If your board includes an FTDI interface for debugging then presumably the second and third scripts that you list might work?
> 
> What did you try so far and how did it go?

The first try was this way:

sudo  openocd -f tcl/interface/jlink.cfg -f tcl/board/nxp_mcimx8m-evk.cfg
Open On-Chip Debugger 0.11.0-rc2+dev-00009-gba0f38213-dirty (2021-02-18-11:16)
Licensed under GNU GPL v2
For bug reports, read
        http://openocd.org/doc/doxygen/bugs.html
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : J-Link V11 compiled Feb  4 2021 12:59:17
Info : Hardware version: 11.00
Info : VTarget = 3.322 V
Info : clock speed 1000 kHz
Error: JTAG scan chain interrogation failed: all zeroes
Error: Check JTAG interface, timings, target power, etc.
Error: Trying to use configured scan chain anyway...
Error: imx8mq.cpu: IR capture error; saw 0x00 not 0x01
Warn : Bypassing JTAG setup events due to errors
Error: Invalid ACK (0) in DAP response
> 
> The openocd user manual explains what target, board and interface scripts do.

I have to check it a bit deeper.

Best regards,

Oliver