2.4”TFT LCD的SD Card讀取問題
想請問一下，我把2.4”TFT LCD 插在Arduino MEGA 2560G上，寫入測試程式，但測不到SD Card。可是同樣的方法在uno上就可以，求解?以下是程式碼
#include <SPI.h>
#include <SD.h>
Sd2Card card;
SdVolume volume;
SdFile root;
const int chipSelect = 10;
void setup() {
Serial.begin(9600);
while (!Serial) {
}
Serial.print("\nInitializing SD card...");
if (!card.init(SPI_HALF_SPEED, chipSelect)) {
Serial.println("initialization failed. Things to check:");
Serial.println("* is a card inserted?");
Serial.println("* is your wiring correct?");
Serial.println("* did you change the chipSelect pin to match your shield or module?");
return;
} else {
Serial.println("Wiring is correct and a card is present.");
}
到這裡就return了 SD Card 是怎麼接的?
Arduino Mega 要接到 50, 51, and 52
其他機種(如UNO)則接 11, 12, and 13 謝謝拉~我問完後有試成功囉~
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