I'm wanting to add a short ISR to handle some external hardware (write a byte to set PWM duty cycle). I'll need to know how tolerant the SPI writing in SDlib is to the timing delays this will introduce. Since the actual SPI timing is done by the SPI hardware in the chip and each byte is effectivel…

How robust is SDlib to other interrupts

ardnut September 12, 2012, 6:08pm 3

Many thanks. That's just what I was hoping was the case. Thanks for the detail.

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