I am just starting afresh with Arduino after several years break.
I am developing a project which uses Timer1 in CTC mode with interrupts. The project also has a MAX7219 connected to the SPI bus. The timer code works perfectly until I call SPI.transfer when the interrupt stops working.
Is there any way to prevent the SPI library from killing the timer interrupt or am I quicker writing my own SPI driver, which is fairly trivial stuff.