KiwiME
Well-Known Member
That's clearly gone through a significant re-design for cost reduction with the 14-year old Texas Instruments microcontroller replaced with a RISC-V Chinese equivalent. I'd imagine the manufacturer of the BM2 couldn't believe their good fortune when EVs came along.
It's entirely possible that an accurate calibration has fallen by the wayside or there's a laser-trimmed resistor in place. I'd be surprised if that's done using the JTAG pins at the top of the PCB but that's also possible.
It's entirely possible that an accurate calibration has fallen by the wayside or there's a laser-trimmed resistor in place. I'd be surprised if that's done using the JTAG pins at the top of the PCB but that's also possible.