TomNickell
Member
That isn't a 'WARNING' to be concerned with - unless the one chosen is WRONG - more of informative feedback - actually added to the Arduino system by Paul@PJRC
Thanks. That is helpful.
That isn't a 'WARNING' to be concerned with - unless the one chosen is WRONG - more of informative feedback - actually added to the Arduino system by Paul@PJRC
Hi.
I cannot get the Teensy 4.1 SD card reader to recognise any SD card. I have tried 2 different Teensy 4.1 modules and 8 different sizes and brands of SD card. I've even tried 2 different PC's and USB cables - clutching at straws, I know. I've used the BUILTIN_SDCARD in this and a number of other example programs, but they consistently find 'no card'. The fact that they compile correctly tells me that they are using the correct Teensy SD.h//SDFat.h etc.
The cards all format and read fine on my PC and via a Arduino Mega2560 card reader.
I have an ethernet Magjack wired to both Teensy modules; would this stop it recognising the SD card reader? There are no other peripherals connected.
I'm trying to get the internal SD card on a Teensy 4.1 working. I have used the examples that Paul suggested at: https://github.com/PaulStoffregen/SD...9f246b20be1282
When I run the CarfInfo.ino example ...
const int chipSelect = BUILTIN_SDCARD;
Final question - I plan to write quite a lot of logged data to the SD card at pretty quick rates - 4 serial ports running at 115200 baud - although bandwidth is not 100% utilised. Are the SD write routines blocking, or occurring in the background?
That IS the "standard Arduino SD library" but NOT the one you should use.Regarding the simpler SD library ? Is that the standard Arduino SD library
I made that change then hit another Error:
Regarding the simpler SD library ? Is that the standard Arduino SD library https://www.arduino.cc/reference/en/libraries/sd/ ? I assume with the TeensyDuino install it still supports the built-in SD Card with 4 bit mode?
Going to have to do some thread necromancy with this, as I'm having the exact same problems as listed above.
Getting "initialization failed" over and over. Tried with 2 different sd cards:
- unbranded 32gb microsdhc
- transcend 1gb microsd
Both formatted to fat32, both perfectly usable on computer via usb-reader.
Tested with all SD examples included, changing chipSelect to BUILTIN_SDCARD as expected, but always get the error, no matter what I do...
Arduino IDE 2.2.1 + Teensy 1.58.1