I have created what I assume is a copy of the Sabre board functionality regarding JTAG, XTAL, POWER etc.
However, I use the i.mx7 solo CPU (12x12 mm package).
When using the Segger J-link Commander, I can read out the chip ID etc., so the JTAG works. I have measured the XTAL is running at 24 MHz. All voltages are as expected.
The problem is, that I cannot halt the processor. I find the support for the solo processor to be very limited and I regret I used it for the prototype. I am not sure if it is a script-problem as the j-link debugger does not have solo support. I am trying to halt the processor by selecting one of the dual core devices.
I have also tried to program the board from IAR embedded workbench, which supports solo processor, but the programming fails (cannot read register 15).
I have no idea what to do next. Any help will be appreciated.