VS Arduino - Only one breakpoint available when hardware debugging

Oct 26^th, 2026 at 10:54am (UTC)

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VS Arduino › Visual Micro › Hardware Debugging (GDB, GDB WiFi, GDB Stub) › Only one breakpoint available when hardware debugging

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Only one breakpoint available when hardware debugging (Read 48 times)

Steven Bennett Junior Member Online Posts: 51 Location: High Bentham Joined: Nov 2^nd, 2022	Only one breakpoint available when hardware debugging Oct 24^th, 2026 at 2:49pm	Print Post
	Is there any way to add additional hardware breakpoints when debugging an ESP32-S3 using it's internal JTAG controller? Only having one breakpoint seems restrictive.


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Steven Bennett Junior Member Online Posts: 51 Location: High Bentham Joined: Nov 2^nd, 2022	Re: Only one breakpoint available when hardware debugging ESP32-S3 Reply #1 - Oct 24^th, 2026 at 4:55pm	Print Post
	I think I've found the answer - an S3 has only 2 hardware breakpoint registers and one is used for OpenOCD and GDB, leaving just one for my code. I verified this by switching to an ESP32-C3, which has 4 hardware breakpoint registers and I was able to add 3 working breakpoints to my sketch i.e. 4 minus 1. For anyone interested see attached image:
	« Last Edit: Oct 24^th, 2026 at 5:00pm by Steven Bennett »
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Tim@Visual Micro Administrator Offline Posts: 12261 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Only one breakpoint available when hardware debugging Reply #2 - Today at 12:10am	Print Post
	Thanks. useful comparison.


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