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CC2340R5: Accessing CFG-AP and SEC-AP

Johnny Ng
Prodigy 10 points
Part Number: CC2340R5
Other Parts Discussed in Thread: UNIFLASH, SEGGER

Hello,

The goal is to develop my own flash programming application for the CC2340R5 via SWD interface. My first step is trying to accessing the CFG-AP to read the device id and also the SEC-AP to send commands to the debug mailbox (DBGSS). I'm having trouble accessing both of these access ports. 

Referring to the CC23xx SimpleLink Wireless MCU Technical Reference Manual (document SWCU193), I think I found a list of SEC-AP registers in 5.10 DBGSS Registers.

I can't seem to find any list for the CFG-AP. 

Can I get a description of all the registers of both these access ports?

Thank you

  • 0
    TI__Expert 4660 points

    Hi Johnny,

    We don't provide support for developing flash programming applications via the SWD interface. We provide Uniflash along with the XD110 debug probe or there's support for Segger J-Link. But we don't document the registers for the APs

    SEC-AP for SACI commands is available via the debug mailbox as the memory mapped registers TXD and RXD in DBGSS as you noted above.

    Thanks,

    Jake

  • 0 in reply to Jake Pulliam
    Prodigy 10 points

    Hi Jake,

    Thanks for answering.

    My problem is not flash programming. All I want to do is access one of these APs. Can you help me talk to the CFG-AP so I can read some information out of the MCU?

    Per the TRM:

    5.3.2 Debug Access Ports

    The CFG-AP provides device information to the debug probe so that the debug probe can identify device characteristics, including the device part number and the device revision

    Regards,
    Johnny Ng

  • 0 in reply to Johnny Ng
    TI__Expert 4660 points

    Hi Johnny,

    I don't have documentation that I can provide for the APs.

    If you're looking for the information that's accessed via the CFG-AP then the same information can be read back from the FCFG (see table 9-1 from the TRM):

    BR,

    Jake