While the Raspberry Pi has very good support for an I2C bus, a lot of very cool chips – including the in system programmer for just about every ATtiny and ATmega microcontroller – use an SPI bus.
We’ve gotten used to the GPIO-available functions of Raspberry Pi computers remaining largely the same over the years, which is why it might have flown a little bit under the radar: the Raspberry Pi 4 ...
The RP2040, the debut microcontroller from the Raspberry Pi Foundation, is now fully supported by SEGGER J-Link The RP2040 features dual Cortex-M0+ cores, both of which can be programmed and debugged ...
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