I broke it and then i fixed it Started off on a techie adventure with an RP2040 DVI board from Adafruit, aiming to get the pico-zxspectrum going. Things started acting haywire once the USB hub got involved, ending in a complete shutdown, intuitive diagnosis showed the power pin was a ghost town! After pin-pointing (and removing) the dead IC, I performed a delicate soldering operation to bless it with a new 3V3 regulator. Working the kinks out with the resolution led to a thrilling revival and, voila, we were back in business with DVI output and SD Card support! 01 July 2024
ESP32-S3 USBMSC - Can we make it faster? After lots of tinkering, I've managed to improve the speed of writing to the SD Card of my ESP32-TV considerably, but it's still not as fast as I'd like. The Arduino 'readRaw' and 'writeRaw' functions were the culprits, they can only write one sector at a time! After bypassing this and using IDF functions, writing speed improved by 70%. I also experimented with writing to the SD Card in the background, which ironically yielded even better results. However, it's still slower than I'd like, so I've got a crazy new plan: using a cheap IC (GL823) for SD card interfacing... 09 October 2023