MPC5644A EQADC 24 channels continuous scan

[kaifalkenberg]

Hi,

I would like to continuously scan 24 channels (externally multiplexed) on ADC0 of the MPC5644A. Is it possible to configure the 6 CFIFOs as if they where one large command FIFO, then get an EOQ interrupt at the last conversion and automatically start over at channel 0? If not, what is the recommended way to do such a conversion efficiently without DMA?

Thanks a lot!

[davidtosenovjan · Accepted solution]

What you sketched up you could possibly achieve SW way, using interrupt and SW triggering.

[davidtosenovjan]

No, it is not possible. You can have CQueue in the SRAM as long as you need it, but using of DMA is necessary.