cottontail Posted December 30, 2011 Share Posted December 30, 2011 This is not directly related to the Rubber Ducky, but I figured with everyone's Teensy development skills someone might know the answer. I have a Teensy++ 2.0 and a MicroSD card slot purchased from PJRC, but I cannot seem to get the Teensy to see the SD card slot. The test code I am using is as follows... #include <SD.h> void setup() { //Pause for 1 second delay(1000); //Needs to be set for the SD library to function pinMode(10, OUTPUT); //Check to make sure SD card is functioning, if not set red LED if (!SD.begin(20)) { analogWrite(16, 1023); } } void loop() { } I have tried multiple variations, but all I get is the red LED (pin 16). Pins 20, 21, 22 and 23 are hooked to SS, SCLK, MOSI and MISO in that order and GND and 5v are also attached to the SD card reader. When testing voltages for the pins at the SD card reader and the Teensy I get... SS - 5 SCLK - .02 MOSI - 5 MISO - 3.3 5v - 5 Any thoughts would be greatly appreciated... thanks! Quote Link to comment Share on other sites More sharing options...
cottontail Posted December 30, 2011 Author Share Posted December 30, 2011 Monitoring the 4 pins on the Teensy through analogRead, here is what I get... SS - 1020 SCLK - 1007 MOSI - 1020 MISO - 1023 SS - 1020 SCLK - 1012 MOSI - 1016 MISO - 1021 SS - 1021 SCLK - 1016 MOSI - 1016 MISO - 1019 SS - 1021 SCLK - 1018 MOSI - 1015 MISO - 1014 SS - 1023 SCLK - 1020 MOSI - 1016 MISO - 1013 SS - 1022 SCLK - 1021 MOSI - 1018 MISO - 1015 SS - 1020 SCLK - 1021 MOSI - 1020 MISO - 1018 SS - 1019 SCLK - 1020 MOSI - 1020 MISO - 1020 SS - 1018 SCLK - 1019 MOSI - 1021 MISO - 1 SS - 1018 SCLK - 1017 MOSI - 1020 MISO - 1 SS - 1018 SCLK - 1017 MOSI - 1019 MISO - 0 SS - 1020 SCLK - 1018 MOSI - 1018 MISO - 1022 SS - 1021 SCLK - 1019 MOSI - 1018 MISO - 1020 SS - 1022 SCLK - 1020 MOSI - 1017 MISO - 1015 SS - 0 SCLK - 1023 MOSI - 1019 MISO - 1015 SS - 1023 SCLK - 1023 MOSI - 1020 MISO - 1016 SS - 1022 SCLK - 1023 MOSI - 1022 MISO - 1019 SS - 1021 SCLK - 1022 MOSI - 1022 MISO - 1021 SS - 1020 SCLK - 1021 MOSI - 1023 MISO - 1 SS - 1018 SCLK - 1019 MOSI - 1022 MISO - 2 SS - 1019 SCLK - 1018 MOSI - 1020 MISO - 0 SS - 1021 SCLK - 1019 MOSI - 1019 MISO - 1022 SS - 1022 SCLK - 1020 MOSI - 1019 MISO - 1020 SS - 1022 SCLK - 1021 MOSI - 1018 MISO - 1016 SS - 0 SCLK - 0 MOSI - 1021 MISO - 1016 SS - 1023 SCLK - 0 MOSI - 1022 MISO - 1017 SS - 1023 SCLK - 1023 MOSI - 1022 MISO - 1018 SS - 1022 SCLK - 1022 MOSI - 1023 MISO - 1021 SS - 1021 SCLK - 1022 MOSI - 1023 MISO - 0 SS - 1020 SCLK - 1020 MOSI - 1023 MISO - 2 SS - 1019 SCLK - 1019 MOSI - 1022 MISO - 2 SS - 1020 SCLK - 1019 MOSI - 1021 MISO - 0 SS - 1021 SCLK - 1020 MOSI - 1020 MISO - 1021 SS - 1022 SCLK - 1021 MOSI - 1020 MISO - 1019 SS - 1023 SCLK - 1022 MOSI - 1019 MISO - 1016 SS - 1 SCLK - 0 MOSI - 1022 MISO - 1017 SS - 1023 SCLK - 1023 MOSI - 1022 MISO - 1018 SS - 1022 SCLK - 1023 MOSI - 1023 MISO - 1020 SS - 1021 SCLK - 1022 MOSI - 1023 MISO - 1022 SS - 1020 SCLK - 1021 MOSI - 0 MISO - 1 SS - 1019 SCLK - 1019 MOSI - 1022 MISO - 2 SS - 1020 SCLK - 1019 MOSI - 1021 MISO - 0 Quote Link to comment Share on other sites More sharing options...
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