Hello all, I have written an ISR to receive data from another Arduino. I am aware of the fact the atmega328 can perform this with hardware, but I am exploring the possibility to save the hardware pins to be used in master mode. Up till here the code works (on the receiving end) with SPI_CLOCK_DIV32…

Optimize "Software-SPI-Slave-Mode" ISR

Topic		Replies	Views
2MHz SPI between two arduinos...help! Networking, Protocols, and Devices	24	8146	May 6, 2021
Two arduino modules communicate via SPI Networking, Protocols, and Devices	26	22914	May 6, 2021
can this be optimised for speed further? Programming	6	773	May 5, 2021
Arduino as SPI slave? Networking, Protocols, and Devices	93	42892	May 6, 2021
Using SPI within an ISR? Interfacing	16	8205	May 6, 2021