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It'd be great to get J-Link flash programming support for WCH's parts — for example, the CH32V307: github.com/openwch/ch32v307/tree/main/Datasheet These parts are basically STM32 clones (but with RISC-V cores), so they come with a ton of peripherals (lots of industrial-control-oriented timers and such). The stand-out feature is the USB 2.0 HS and 10M ETH PHYs built-in. A cursory glance at the CH32V307 datasheet indicates their flash memory controller has a nearly-identical interface to the STM32…
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I can successfully connect to both A7 cores of my STM32MP157 board with either of these commands: Source Code (2 lines) However, I cannot connect to the M4 core of the processor. If I attempt to default to the JTAG interface, it just says "ERROR: Could not connect to target" — if I connect via SWD, it shows more promise: Source Code (52 lines)I also tried upgrading to the latest version of J-Link software (6.86d), but that also didn't fix things (and ended up presenting a different error): Sourc…
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What's the right way to attach a J-Link to a running i.MX6UL to debug the Linux kernel? I followed this post, which tells you to disable the 'clock off' wait state and use the -noir and -noreset options with the J-Link. Unfortunately, when I try starting my debug session with: ./JLinkGDBServer -if JTAG -endian little -device MCIMX6G3 -select USB -noir -noreset the J-Link resets the MPU immediately. I thought maybe I could attach to it during U-Boot, and then start debugging once I was in Linux, …