embedawayz

6 ms·

1. 1.▲
   by embedawayz 6y ago

   Eh, sometimes it's nice to have a go-to workhorse that you can throw into almost anything. The STM32F103C8 is a good example. If you buy a few dozen off of AliExpress or TaoBao, "blue pill" boards containing them and a microU
2. 2.▲
   by embedawayz 6y ago

   As an example, the modern equivalent of its STM32F0 chip would probably be an STM32G0. STM32F030F4 ($0.55@2500) -> STM32G030F6 ($0.49@2500): * Clock speed: 48MHz -> 64MHz * Flash memory: 16KiB -> 32KiB * SRAM: 4KiB -> 8KiB * CPU
3. 3.▲
   by embedawayz 6y ago

   You can write ordinary C code to run on them. You just need a separate compiler/linker/etc. because they have a different CPU architecture than your computer. For an ARM Cortex-M chip, you can use the `arm-none-eabi` GNU toolchain
4. 4.▲
   by embedawayz 6y ago

   I try not to use them, but they seem fine for basic SPI/UART/etc. Someone did an analysis of the dies, and apparently they compare favorably in some ways: https://zeptobars.com/en/read/GD32F103CBT6-mcm-se