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Debug UART with SDK 7.1

I just switched over from SDK v6 to SDK v7.1 (installed via those Keil Packs). The UART has suddenly stopped working (via Segger USB COM port) and I can no longer see any debug console output. It's just giving me garbage characters.

I'm using the NRF51822 on the PCA10001 reference design.

Is this a known issue? If I wanted to 'start over' in providing a console output, how would I go about enabling UART debug console output over the Segger COM port? I've already searched the forum and have been unable to resolve this.

I also tried following the SDK instructions for Debug, but that didn't work either. developer.nordicsemi.com/.../a00074.html

38400 bps, 8N1, no parity, no flow control. Changed the bps to 115200, same settings, no change. No matter what settings I change I still get garbage characters.

Thanks.

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