SparkFun Forums

[magicgreenhalaman]

I am having trouble initializing my 3 SPI devices, a micro sd card module, usb host shield and RA8875.
The connection is sd_cs 4, RA8875_cs 5 and usb_cs 10. Here is my setup function.

void setup()
{
Serial.begin(9600);

pinMode(10,OUTPUT);
digitalWrite(10, HIGH);

pinMode(5,OUTPUT);
digitalWrite(5, HIGH);

pinMode(4, OUTPUT);
digitalWrite(4, HIGH);

digitalWrite(5, LOW);
Serial.println("RA8875 start");

//RA8875 initialize
if (!tft.begin(RA8875_800x480)) {
Serial.println("RA8875 Not Found!");
while (1);

}

Serial.println("Found RA8875");

//sd card initialize
digitalWrite(4, LOW);
if (!SD.begin(4)) {
Serial.println("SD initialization failed!");
return;
}
Serial.println("SD initialization done.");
digitalWrite(4, HIGH);

//usb initialize
digitalWrite(10,LOW);
delay(20);
digitalWrite(10,HIGH);
#if !defined(__MIPSEL__)
while (!Serial); // Wait for serial port to connect - used on Leonardo, Teensy and other boards with built-in USB CDC serial connection
#endif
Serial.println("Start USB");

if (Usb.Init() == -1)
Serial.println("OSC did not start.");
else
Serial.println("USB ready!");

digitalWrite(10,HIGH);
delay( 200 );
}


the ra8875 and sd card are fine but the usb host have an output "OSC did not start''
I really need help please