Hi Charles , Tom suggested me to use a timer to trigger the ADC and an interrupt to read the ADS8329 result. e2e.ti.com/.../5475101 Do you have an estimation on the time (how many microseconds) an interrupt will use? In the interrupt, there will be only the following codes. SSIDataPut(SSI0_BASE,i); SSIDataGet(SSI0_BASE, &sample_data[i]); while(SSIBusy(SSI0_BASE)) { } Thank you very much, Zhonghai
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