Dear community,
I'm developing the STSPIN32G4. My setup is as follows:
12V for the V_M
External 3.3V for VDD / VDDA / VREF+ / VBAT / VREGIN
PB8 (BOOT0) with 10K pull-down
nRESET with RC-delay circuit: 10K pull-up to 3.3V + 10uF capacitor
Power sequence: 12V is applied first to the STSPIN32G4 and L6982N33DR, then L6982N33DR supplies 3.3V to VDD
The problem I'm facing right now is:
The MCU starts working (sending UART and running the peripheral devices), but the gate control parts (GHSx & GLSx) remain idle and don’t drive current.
I have to manually pull nRESET low again to start the gate control.
How can I solve this? I want the chip to automatically start the gate driver at power-up.
I also noticed that the EVSPIN32G4 evaluation board shows the same behavior.
