Teensy 3.5 use SDcard with another SPI-controller

[Welocs]

Hi there,

as the title says, i'd like not only to use the on-board sd card connection on the teensy 3.5.
Questions:
1.) Does teensy 3.5 only use (read/write) sd cards with SDHC or with SPI?
2.) Is there a possibility to use another SPI-Port(-hardware controller e.g. SPI2, SPI3) for SD-card applications?
2.1.) is this possible with the SD.h library?


greetings,
Welocs

 

[WMXZ]

Hi there,

as the title says, i'd like not only to use the on-board sd card connection on the teensy 3.5.
Questions:
1.) Does teensy 3.5 only use (read/write) sd cards with SDHC or with SPI?
2.) Is there a possibility to use another SPI-Port(-hardware controller e.g. SPI2, SPI3) for SD-card applications?
2.1.) is this possible with the SD.h library?


greetings,
Welocs

You can attach other SD cards to any teensy (also T3.5/T3.6).
there is a special cmd to use build-in SD with SDHC driver on T3.(5/6) See CardInfo example.
AFAIK, SD library is hard coded for SPI0, but there may be some modified SD libraries adapted to SPI1,2,3 (search this forum)