I am using a STM32H723ZGT6 on a small project. The project fails to program when I am using 3.3 volts. It programs just fine at 3.2 volts. Always gives me a fail in final launch sequence. However, it always programs when I apply a small amount of...
I have recently created a PCB in which I am attempting to program external FLASH via the QSPI interface. It is a very simple 2-layer PCB. The MCU is the STM32H723ZGT6. I am using an LDO to convert the 5V USB to 3.3V. There is a power LED. There a...
These are good questions. 1-I have changed out the VCAP capacitors for 2.2uF with no effect. I have changed out every component for different values to no effect. It always performs the same. I can even program using a 10uF on the NRST line if th...
The capacitor change didn't work. It still errors out regularly.But I may have an answer for this. My design is utilizing a fixed 3.3V LDO. Output voltage is roughly 3.325 to 3.35 volts. I have removed the regulator and supplied voltage from a be...
I would like to say that I have found the issue. The MCU seems to program every time now but I cannot completely validate it due to temperature constraints. In my schematics, I have a 10nF capacitor on the VREF+ line to ground. I misread the schem...
Thank you for your responses. 1-I am using the latest version of CubeIDE. Drivers and firmware are all up-to-date.2-I have checked the solder on this build multiple times. I have de-soldered and re-soldered the MCU. I have gone through four MCUs ...
