Diff: main.cpp

Revision:

2:efaf8aee55df

Parent:

1:bd988d267998

Child:

3:e8cc286f9b2e

--- a/main.cpp	Mon Jan 19 23:27:45 2015 +0000
+++ b/main.cpp	Mon Jan 19 23:48:21 2015 +0000
@@ -64,10 +64,14 @@
     rfid_isp = 0;                                                   // RFID FE In-System Programming (active high)
     rfid_rst = 1;                                                   // RFID FE Reset (active high)
     rfid_pwr = 1;                                                   // RFID power switch on USB board (active high for prototype 1, low for all others)
-    wait(0.25);                                                     // wait 1/4 second before...
+    wait(0.25);                                                     // wait 250ms before...
     rfid_rst = 0;                                                   // ... taking RFID out of reset
         
     // Prox
+    i2c.frequency(400000);
+    prox_int.mode(PullUp);                                          // pull up proximity sensor interrupt at MCU
+    
+    
     return 0;
 }
 
@@ -145,68 +149,68 @@
     
     cdc.printf("Starting...\n\r");
     
-    //while(!cdc.readable());         // spin here until a message comes in from the host PC
+    while(!cdc.readable());                                         // spin here until a message comes in from the host PC
     bool end_mark = FALSE;
-    uint8_t crcCount = sizeof(cdc_buffer_rx);                            // use tx buffer size to start
+    uint8_t crcCount = sizeof(cdc_buffer_rx);                       // use tx buffer size to start
     cdc.printf("\n\rCDC Input: ");
     for (i = 0; i < sizeof(cdc_buffer_rx); i++)
     {
-        //cdc_buffer_rx[i] = cdc.getc();                             // 
+        cdc_buffer_rx[i] = cdc.getc();                              // read data from USB side
                     
-        cdc.printf("%X, ",cdc_buffer_rx[i]);
+        //cdc.printf("%X, ",cdc_buffer_rx[i]);                      // debug
 
-        if (cdc_buffer_rx[i] == 0x7E)                            // check for rfid end mark in outbound message
+        if (cdc_buffer_rx[i] == 0x7E)                               // check for rfid end mark in outbound message
         {
-            crcCount = 2;                                       // two more bytes for CRC
-            end_mark = TRUE;                                    // end mark was reached
+            crcCount = 2;                                           // two more bytes for CRC
+            end_mark = TRUE;                                        // end mark was reached
         }
-        if (crcCount-- == 0)                                    // end of message
+        if (crcCount-- == 0)                                        // end of message
         {
-            if (end_mark == FALSE) return ERR_UART_NO_TX_ENDMARK; // no end mark detected
+            if (end_mark == FALSE) return ERR_UART_NO_TX_ENDMARK;   // no end mark detected
             break;
         }
     }
 
     switch(cdc_buffer_rx[0])
     {
-        case 0xBB:              // RFID-FE
+        case 0xBB:                                                  // RFID-FE
             for (i = 0; i < sizeof(cdc_buffer_rx); i++)
             {
-                uart_buffer_tx[i] = cdc_buffer_rx[i];       // copy USB message to UART for RFID
+                uart_buffer_tx[i] = cdc_buffer_rx[i];               // copy USB message to UART for RFID
             }
             
-            status = rfid_msg();         // send buffer to RFID and get response according to RFID board
+            status = rfid_msg();                                    // send buffer to RFID and get response according to RFID board
             
             for (i = 0; i < sizeof(cdc_buffer_tx); i++)
             {
-                cdc_buffer_tx[i] = uart_buffer_rx[i];       // copy RFID response back to USB buffer
+                cdc_buffer_tx[i] = uart_buffer_rx[i];               // copy RFID response back to USB buffer
             }
             
-            cdc.printf("\n\rRFID Response: ");
+            //cdc.printf("\n\rRFID Response: ");                    // debug
             
             for (i = 0; i < sizeof(cdc_buffer_tx); i++)
             {
-                cdc.printf("%x, ", cdc_buffer_tx[i]);                            // send message back to PC
+                //cdc.printf("%x, ", cdc_buffer_tx[i]);             // debug send message back to PC
                     
-                if (cdc_buffer_tx[i] == 0x7E)                            // check for rfid end mark in outbound message
+                if (cdc_buffer_tx[i] == 0x7E)                       // check for rfid end mark in outbound message
                 {
-                    crcCount = 2;                                       // two more bytes for CRC
-                    end_mark = TRUE;                                    // end mark was reached
+                    crcCount = 2;                                   // two more bytes for CRC
+                    end_mark = TRUE;                                // end mark was reached
                 }
-                if (crcCount-- == 0)                                    // end of message
+                if (crcCount-- == 0)                                // end of message
                 {
                     if (end_mark == FALSE) return ERR_CDC_NO_TX_ENDMARK; // no end mark detected
                     break;
                 }
             }
             break;
-        case 0xCC:              // Proximity Sensor
+        case 0xCC:                                                  // Proximity Sensor
             prox_msg();
             break;
-        case 0xDD:              // GPIO (LEDs and RFID-FE control
+        case 0xDD:                                                  // GPIO (LEDs and RFID-FE control
             gpio_msg();
             break;
-        case 0xEE:              // Read/write EEPROM
+        case 0xEE:                                                  // Read/write EEPROM
             eeprom_msg();
             break;
         default: