2021-07-07 09:55 AM
Unplugged JTAG from prototype unit for hand held testing. Need to plug back in for more code development . Using a STM32L476_LQFP64 chip. Did upgrade to STM32+STM8 Debugger from V2.J24.S37 to V2.J37.S37 and back. Neither version worked. Is there a "target list" that got deleted somehow?
2021-07-07 10:16 AM
No, your device is simply non-responsive.
And code in there to put the device into a low power mode, or interfere with the SWDIO/SWCLK pins?
Is NRST wired?
Try strapping BOOT0 High on your board, if that connects and you're able to erase, then something errant in your code.
2021-07-07 11:57 AM
2021-07-08 12:57 PM
2021-07-08 03:15 PM
Watch that things like CubeMX don't slip a disable SWD/JTAG Debug Option in on you.
Grep/Find-in-File GPIO_PIN_13