I have made a custom SAMD21 board, i am still currently trying to place a bootloader on it so i still wont be able to test thing for a little while. I have read that arduino's digitalread and digitalwrite are very slow on some samd21 boards, hence i would like to create my own , my samd21 board onl…

[image] John41234: Is the pointer method faster than direct register access? or about the same? PORT_IOBUS->Group[1].OUTSET.reg = (1 << bitnum); // vs REG_PORT_DIRSET1 = PORT_PB27; // set PB27 to output Ah. Good question. The "pointer method" is slightly better (neglecting, for th…

What is the fastest way to read/write GPIOs on SAMD21 boards?

Projects Programming

system Closed January 20, 2022, 11:00pm 20

This topic was automatically closed 120 days after the last reply. New replies are no longer allowed.

Topic		Replies	Views
Faster Pin I/O on Zero? Zero	51	40961	May 6, 2021
digitalWriteFast, digitalReadFast, pinModeFast etc Bugs & Suggestions	81	144327	May 6, 2021
Lettura / scrittura digitale con registri Generale	52	16316	May 7, 2021
Manage ports? Programming	41	17653	May 5, 2021
in search of the perfect digitalWrite() Programming	15	7574	May 5, 2021

What is the fastest way to read/write GPIOs on SAMD21 boards?

Related topics