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SK-AM62: am62

Part Number: SK-AM62

We are trying to connect AM62X CortexM4 via JTAG.
Since we are unable to connect correctly.
Please tell us below.

The TRM of the chip refers to the following
AM62x Processors Silicon Revision 1.0
Texas Instruments Families of Products
Technical Reference Manual In this manual, on page 12203,
there are four (4) of the six (6) APs in [Figure 13-1.
On-Chip Debug Block Diagram] on page 12203 of this manual,
4 of the 6 APs (APSEL 0,1,2,3) are visible,
but the 2 APs in CM4 are not visible from the debugger.
Question 1:
What is the APSEL number of CM4?
Question 2:
Are the AHB-APs in CM4 always visible?
Or do I need to initialize it in some way?
If it needs to be initialized, etc.,
where can I find out how to do so? Please be specific.

  • The APSEL assignments for CM4 are provided in Table 13-4 of the TRM. They are as follows -
    SMS TIFS M4F  - 7
    MCU_M4F         - 8
    SMS HSM M4F  - 9
    The AHB-APs in CM4 do not need to be initialized. The DAP needs to be enabled but that is for every core connection through DebugSS, not just M4.