Arduino for STM32

We got a Chromecast to use on our Toshiba Fire Edition TV, because the Fire end was getting incredibly laggy after Amazon kept on updating it past the capabilities of our TV. But I didn't want to use an extra remote for the Chromecast. Fortunately, the Chromecast supports HDMI CEC and most of the ne...

dannyf wrote: ↑Mon Oct 02, 2023 10:31 pm It isn't always worth it to have a genuine chip.

Agreed. I have some working projects with fakes. But I've also seen problems with fakes: delayMiicroseconds() being off by a factor of two and the RTC not starting.

I thought I'd start this thread for people to list trustworthy sources they have found of genuine stm32f103c8t6 blue pills. To start things off, I ordered 6 units in February 2023 and 8 units in September 2023 from the TZT teng official store on Aliexpress: https://www.aliexpress.us/item/22518325333...

I think I have the best solution now. I can use PA13 and PA14, which are by default assigned to the debug interface, as long as I don't use debugging (which I don't).

For my use-case (writing addresses to an Atari 2600 cartridge), writing to the BSRR registers of the two ports in immediate sequence may not be fast enough. maybe you should first explore if that assumption is correct - i find it hard to believe. Yeah. The problem is that I currently only own two c...

I'd like to do 13 pins at once. I have 12 on one port and 1 on another, and I can't get them all on one, because the only port I have where there are 13 also has a bunch of 5V tolerant pins that I need for another purpose. For my use-case (writing addresses to an Atari 2600 cartridge), writing to th...

Is there an easy way to synchronize writes to GPIOs on two different ports so they happen at the same time?

I am using a blue pill with Roger's core if it matters.

I updated the project to emulate a flash drive, with the ROM showing up as GAME.A26, and a little bit of information about the bank switching showing up in INFO.TXT.

Currently to switch cartridges, you need to reset (or unplug the USB).

This dumps Atari 2600 cartridges to serial. Supports 4K cartridges, as well as auto-detected F6, F8 and FA bank-switching. Only tested on F8, as there is only one cartridge I own. https://github.com/arpruss/atari2600dumper

Uses an AS5601 magnetic sensor, and the knob is ball-bearing mounted for super-smooth long-spinning motion. It emulates the horizontal axis of a mouse. Instructable: https://www.instructables.com/Magnetic-Sensor-Arcade-Spinner Source code: https://github.com/arpruss/usbspinner https://blogger.google...