diff options
Diffstat (limited to 'USB_Host_Shield/Max3421e.cpp')
| -rw-r--r-- | USB_Host_Shield/Max3421e.cpp | 60 |
1 files changed, 50 insertions, 10 deletions
diff --git a/USB_Host_Shield/Max3421e.cpp b/USB_Host_Shield/Max3421e.cpp index 7b0f603..fec0945 100644 --- a/USB_Host_Shield/Max3421e.cpp +++ b/USB_Host_Shield/Max3421e.cpp @@ -8,16 +8,56 @@ static byte vbusState; /* Functions */
+#define INT PE6
+#define INT_PORT PORTE
+#define INT_DDR DDRE
+#define INT_PIN PINE
+
+#define RST PJ2
+#define RST_PORT PORTJ
+#define RST_DDR DDRJ
+#define RST_PIN PINJ
+
+#define GPX PJ3
+#define GPX_PORT PORTJ
+#define GPX_DDR DDRJ
+#define GPX_PIN PINJ
+
+
+void MAX3421E::setRST(uint8_t val)
+{
+ if (val == LOW)
+ RST_PORT &= ~_BV(RST);
+ else
+ RST_PORT |= _BV(RST);
+}
+
+uint8_t MAX3421E::readINT(void)
+{
+ return INT_PIN & _BV(INT) ? HIGH : LOW;
+}
+
+uint8_t MAX3421E::readGPX(void)
+{
+ // return GPX_PIN & _BV(GPX) ? HIGH : LOW;
+ return LOW;
+}
+
+
+void MAX3421E::pinInit(void)
+{
+ INT_DDR &= ~_BV(INT);
+ RST_DDR |= _BV(RST);
+ digitalWrite(MAX_SS,HIGH);
+ setRST(HIGH);
+}
+
+
/* Constructor */
MAX3421E::MAX3421E()
{
spi_init();
- pinMode( MAX_INT, INPUT);
- pinMode( MAX_GPX, INPUT );
- pinMode( MAX_SS, OUTPUT );
- digitalWrite(MAX_SS,HIGH);
- pinMode( MAX_RESET, OUTPUT );
- digitalWrite( MAX_RESET, HIGH ); //release MAX3421E from reset
+ pinInit();
}
byte MAX3421E::getVbusState( void )
@@ -225,11 +265,11 @@ byte MAX3421E::Task( void ) byte pinvalue;
//Serial.print("Vbus state: ");
//Serial.println( vbusState, HEX );
- pinvalue = digitalRead( MAX_INT );
- if( pinvalue == LOW ) {
+ pinvalue = readINT();
+ if( pinvalue == LOW ) {
rcode = IntHandler();
}
- pinvalue = digitalRead( MAX_GPX );
+ pinvalue = readGPX();
if( pinvalue == LOW ) {
GpxHandler();
}
@@ -268,4 +308,4 @@ byte MAX3421E::GpxHandler() //{
//
//
-//}
\ No newline at end of file +//}
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