Hi, I am working on an audio project using teensy that needs several channels of high fidelity i/o. In the past I've used the Teensy 3.2/3.6 with the CS42448 codec, having reverse engineered the following example board to include the relevant sections on my own PCBs: https://oshpark.com/shared_projects/2Yj6rFaW
For this project I'd like to use the 4.0 because of its increased processing power. When looking up whether the 4.0 is compatible with the CS42448 codec, I saw that there is a new example board for the 4.0 series: https://hackaday.io/project/2984-teensy-audio-library/log/187557-updated-cs42448-pcb-for-teensy-4x.
Unfortunately these pages don't appear to include schematic information, so at first glance its hard to tell whether anything meaningful has changed for my application. I wanted to ask whether the pinout of codec connections has changed, or whether the 4.0 is pin for pin compatible with the older codec board. Figured it would be more expedient to ask those that had designed the board than to rehash the process of reverse engineering, only to find they were exactly the same.
For this project I'd like to use the 4.0 because of its increased processing power. When looking up whether the 4.0 is compatible with the CS42448 codec, I saw that there is a new example board for the 4.0 series: https://hackaday.io/project/2984-teensy-audio-library/log/187557-updated-cs42448-pcb-for-teensy-4x.
Unfortunately these pages don't appear to include schematic information, so at first glance its hard to tell whether anything meaningful has changed for my application. I wanted to ask whether the pinout of codec connections has changed, or whether the 4.0 is pin for pin compatible with the older codec board. Figured it would be more expedient to ask those that had designed the board than to rehash the process of reverse engineering, only to find they were exactly the same.