https://wiki.jegatron.se/ 2026-07-03T20:58:55+00:00 https://wiki.jegatron.se/ https://wiki.jegatron.se/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2022-09-12T00:30:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.jegatron.se/doku.php?id=arm:atsamc21:pinout&rev=1662942654&do=diff ATSAMC21 pinout [Sortable excel sheet] C21E 32-pin package <sortable> PIN I/O SUPPLY XTAL EIC REF ADC0 ADC1 AC PTC DAC SDADC SERCOM SERCOM-ALT TC/TCC TCC COM AC/GCLK CCL IOMUX: A B C D text/html 2022-09-12T00:30:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.jegatron.se/doku.php?id=arm:atsamc21:tc&rev=1662942654&do=diff Examples Setup TC2 sourced by the external 32 kHz oscillator #include "sam.h" #include <stdint.h> int main(void) { int u = 0; /* Initialize the SAM system */ SystemInit(); uint16_t last_time, now; last_time = now = 0; // LED pin, PA15, output PORT->Group[0].DIRSET.reg = PORT_PA15; // Button pin, PA28, enable input driver and pull-up PORT->Group[0].PINCFG[28].bit.INEN = 1; PORT->Group[0].PINCFG[28].bit.PULLEN = 1; PORT->Group[0].OUTSET.reg = PORT_PA28; // Enable the external…