Important notice to users using our module with the KitProg2. There’s a mandatory voltage upgrade necessary as SWD voltages are out of specification.
It seems the voltage on SWD IO and SWD CLK will be set by measuring Vtarg. If Vtarg = 4.8V, the programmer will set the SWD lines to 4.8V which is too high.
- Remove Schottky diode D1
- Place 2 1N4001 as shown