LPC Microcontrollers中的主题 Re: 'Trace Enable' in CMSIS-DAP debugger not enabled

'Trace Enable' in CMSIS-DAP debugger not enabled

yulung — Fri, 27 Jan 2023 01:30:00 GMT

I recently acquired a LPC51u68(OM40005) board. I tried to use printf for debugging in Keil (v.5.38.0.0). But I found I cannot enable Tracing. As shown in the screenshot below, the check box of Trace Enable is disabled. How can I get to enable it?

Thanks.

Re: 'Trace Enable' in CMSIS-DAP debugger not enabled

Alice_Yang — Mon, 30 Jan 2023 03:19:32 GMT

Hello @yulung

The required trace interface needs to be supported by both the microcontroller and the debug adapter.

Trace Enable is disabled because your adapter doesn't support this function.

For example I choose ULINKpro , it can enable:

Alice