Hi David, I looked at the C file you posted. It looks like you're using Port0, Pin5 as the BSL invocation. Is that correct? So my question is: unlike the FR5969 (and other MSP's), if I get a blank MSP432P4xx from production, never been programmed, I cannot use the BSL H/W Invocation since its all F's?? If so, why is the appNote SLAU622 on page 16, Figure 6 showing P1.0? Also, second question. I've changed the msp432_flashmailbox.c file to add the Reserved bits of 0x1f to the invoke parameters and noticed under Code Composer (CC), they show up as zeros. When I'm using IAR EW 7.60.1 version, I cannot see the data at all. It's all F's Could you expand on why IAR cannot show the BOM and CC can and why CC cannot show the Reserved bits as F's One more thing, with the file you posted, I still cannot get the BSL to talk to the BSL_Scripter.exe version 3.1.0.0. I assume I should be using P0.5, pulling it high while holding the RSTn switch on the Launchpad dev board? Thanks, -Jim
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