I am working on custom board design for STM32F723ZET6 MCU.
Here is part of schematic.
All the VDD/VDDA/VBAT pins are connected to 100nF bypass capacitors and few 4.7uF capacitors between VDD and GND. The capacitors are also put as closely as possible to VDD pins in PCB.
I am trying to program the board using ST-link V2 programmer (Original one from ST) and following SWD pins: VDD, SWDIO, SWCLK, nRST, GND
I am getting following error on ST-link utility:
I have also tried various options "Connect under reset", lowering the SWD frequency but nothing seems to work.
One weird thing i noticed in the board is, I am not getting 1.2v at VCAP1/2 pins. Is it causing the problem ?