Newer chips in that family do not have that limitation. Note that CAN and USB cannot be used at the same time as they share a common interrupt handler and common RAM buffers. The chip also has 20k of RAM and a full suite of peripherals (three USARTs, two 12 bit ADCs, I2C, USB, CAN and more. Along with the low price of the chip itself, ST Micro offers a free development toolset with the Atollic suite (Eclipse based).Įven though the datasheet says the device has 64kB of Flash (the STM32F103CBT6 is the official 128kB variant), I have seen reports that most C8 devices are actually shipped with 128kB of Flash. Small development boards are available from AliExpress (for example) for a couple $ including shipping from China. One thing that makes this device particularly attractive is its low price, full feaure set and the availability of quality, free, unlimited development tools. The STM32F103C8T6 is a 32 bit microcontroller of the ARM Cortex-M3 family.
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January 2023
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