I have a 4 channel high speed ADC device (TI ADS8584S ) that I am currently using in SPI mode on a teensy3.6 that I am migrating to a teensy 4.1. I would love to use it in qspi mode and get some more data throughput.
Either I am not understanding the docs, or there is no qspi other than the memory interface on the teensy 4.1. right? wrong? ( if wrong, any breadcrumbs to where I find config info in the hardware pdf)
If there is only qspi on the expansion memory pads, can I somehow use that as a qspi connection to my adc? Somehow lie to the qspi controller to configure my device, then grab data on the ready interrupt (wired to other some other pin) or poll the heck out of the 'data ready' register in qspi mapped registers? Is there automation in the qspi controller that could take any of this off my hands?
Thoughts or breadcrumbs would be very much appreciated.
Luc
Either I am not understanding the docs, or there is no qspi other than the memory interface on the teensy 4.1. right? wrong? ( if wrong, any breadcrumbs to where I find config info in the hardware pdf)
If there is only qspi on the expansion memory pads, can I somehow use that as a qspi connection to my adc? Somehow lie to the qspi controller to configure my device, then grab data on the ready interrupt (wired to other some other pin) or poll the heck out of the 'data ready' register in qspi mapped registers? Is there automation in the qspi controller that could take any of this off my hands?
Thoughts or breadcrumbs would be very much appreciated.
Luc