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CCS/MSP430FR2355: Delayed MSP Application UART1 output with CCS Debug operation

Part Number: MSP430FR2355
Other Parts Discussed in Thread: MSP-EXP430FR2355, MSP430F5528, MSP-EXP430FR2311, ENERGYTRACE

Tool/software: Code Composer Studio

OutOfBox_MSP-EXP430FR2355.zip

While using the USB backchannel UART (MSP Application UART) connection, output to hterm is delayed while running in CCS debug mode.  I observe immediate UART traffic from the MSP430FR2355 to the MSP430F5528 on the MSP-EXP430FR2355, but output to the PC over the USB connection is delayed.  In some cases, the latency is up to 7-8s.  Is there priority between the MSP Debug Interface and MSP Application UART that is causing the buffering delay.  Operation runs normally when the device is in free-running mode. 

Is there any way to get real-time updates over the MSP Application UART while using the Debugger?

I have attached example code based off of the OutOfBox demo.  Pressing S1 should initiate an MSP Application UART transmission at 115200 baud.

Thanks,

Robb

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