Hi, thanks for reply. I'm trying to reduce the variable size of the simpler code I have which use the memory: with a very basic one where I just save and access one fixed memory point it works. but when I go back to a version where I try save and access more points, it always generate the error.. th...

Hello everyone, On some ESP32-Pico-D4 I started to try use the internal SPI Flash Memory of 4MB. I'm using Arduino IDE 1.8.8 and the Espressif preferences library. After changing some variable and values in my Memory function, suddenly cannot more use the Memory, it always crash and reboot this on t...

in the last days I have been able to make some improvements: the chip seems to works (most of the time) and probably the biggest problem was that it has not been soldered correctly.

if you mean on the U0TXD (IO1) unfortunately not, it alwyas stay high (when the other working board which usie the USB-FTDI adapter, sent bytes). checking on other design I also tried a modification with a pull-up for EN/RST with a 10 k resistor to +3.3V but didn't changed anything how said I check ...

sorry no, I just let it assembly in another factory. Anyway I'm aware this BGA components aren't easy to solder, but after reading how many have similar problems (no communications on the TX) now I'm wondering if there is a lot of defective chip around.. because I made two boards and no one works. I...

Hello, I have realized a custom PCB design for the ESP32 Pico D4 and I’m not able to program it. To reduce the components needed I use a separated USB-FTDI adapter to program the SIP. I tried to reproduce the schematic of a similar board that successfully use the USB-FTDI adapter. Because I don't ne...