Other Parts Discussed in Thread: ADS7253
Hi,
Now we run a main isr which takes about 90us while the period is 100us, so only 10us is left. We want to use cup timer1 ISR to send SPI to ADS7253 9 times(which needs 2us for one time,totally need 18us ) to get the ADC data in parallel with above main isr. Obviously, the conflict is the 18us > 10us. And we also wonder how the run the cup timer1 ISR 9 times in average time in the main ISR.
Could you give some help to solve this two questions?
Peter