I tried using a W25N01 NAND flash memory chip (W25N01GVZEIG from Digikey) and a PSRAM chip (from PJRC) on a Teensy 4.1.
I could not get the NAND Flash to work on the narrower pads, but it worked fine on the wider pads. I used the LittleFS_QSPI_Simple_Datalogger.ino example to test it.
It is almost impossible to solder the W25N01 to the narrower pads and so it may be that I had a soldering error in that case.
So I tried putting a PSRAM chip on the narrow pads.
But I can't get the 8MB PSRAM chip to work when installed on the narrow pads when the WS25N01 is present on the wider pads.
I tried putting an image above.
Can this be done or have I done something that is not supported?
I could not get the NAND Flash to work on the narrower pads, but it worked fine on the wider pads. I used the LittleFS_QSPI_Simple_Datalogger.ino example to test it.
It is almost impossible to solder the W25N01 to the narrower pads and so it may be that I had a soldering error in that case.
So I tried putting a PSRAM chip on the narrow pads.
But I can't get the 8MB PSRAM chip to work when installed on the narrow pads when the WS25N01 is present on the wider pads.
I tried putting an image above.
Can this be done or have I done something that is not supported?