Hi
I'm writing a tool to access the flash memory of K10 type MCUs via the Ezport interface.
Reading, erasing and flashing works fine.
Now I want to read the SIM_SDID register which is at address 4004_8024h, but the Ezport read function seems not to be able to access this address space.
Is there a way to read this register?
Hi @stoneface ,
No, EZport can only access flash. You must use Jtag/SWD to read other register.
Regards,
Jing
Hi jingpan,
thanks for your reply.
I guess that the access is made by the "ARM JTAG-DP" instruction. Until now I managed to read the device identification register via JTAG (IDCODE), but I'm not yet familiar with ARM JTAG-DP instructions. A first search for a good documention was quite dissatisfying.
Can you (or somebody else) give me a hint where to find usefull documention?
best regards
Hi,
You can refer to this document.
https://developer.arm.com/documentation/ddi0314/h/
Regards,
Jing
Hi Jing,
thanks, I will work it over ...
best regards