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What mechanism is it that causes the SMCLK to stop when Code Composer Studio hits a breakpoint or you use the "pause" button? I have BOTH the MCLK and SMCLK set to be driven by DCO/1, and I have ACLK, MCLK, and SMCLK directed to device pins (P1.5, P1.2, and P1.6, respectively) but whenever Code Composer Studio hits a breakpoint or I use the "pause" button, I see that only ACLK and MCLK continue to run, while SMCLK stops. What is it that causes this behavior?
Hi,
The CCS need to hold the SMCLK for the MCU to stop.
Best regards,
Cash Hao
I presume that you mean to say that this is strictly a JTAG mechanism that allows the debugger to pause execution by gating SMCLK off; that is, that it does not actually use any of the MSP430 clock control features, but is more of an "under the covers" method, yes?
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