Diff: main.cpp

Revision:

7:09354ea16403

Parent:

6:005ff6a49217

Child:

8:057ff6060e39

diff -r 005ff6a49217 -r 09354ea16403 main.cpp
--- a/main.cpp	Sat Dec 12 22:55:44 2015 +0000
+++ b/main.cpp	Sat Dec 12 23:10:09 2015 +0000
@@ -73,7 +73,66 @@
 //SPI_TFT_ILI9341 TFT(D11, D12, D13, D10, D8, D9, "TFT"); // mosi, miso, sclk, cs, reset, dc
 SPI_TFT_ILI9341 TFT(PC_3, PC_2, PB_10, PB_12, PA_8, PA_11, "TFT"); // mosi, miso, sclk, cs, reset, dc
 SDFileSystem sd(PB_5, PB_4, PB_3, PC_11, "sd"); // mosi, miso, sclk, cs
- 
+
+DigitalOut skywire_en(PA_6);
+//DigitalOut skywire_rts(PA_7);
+Serial skywire(PA_0,PA_1);
+
+volatile int rx_in=0;
+volatile int rx_out=0;
+const int buffer_size = 255;
+char rx_buffer[buffer_size+1];
+char rx_line[buffer_size];
+
+void read_line()
+{
+    int i;
+    i = 0;
+// Start Critical Section - don't interrupt while changing global buffer variables
+    __disable_irq();
+// Loop reading rx buffer characters until end of line character
+    while ((i==0) || ((rx_line[i-1] != '\r') && (rx_line[i-1] != '\n'))) {
+// Wait if buffer empty
+        if (rx_in == rx_out) {
+// End Critical Section - need to allow rx interrupt to get new characters for buffer
+            __enable_irq();
+            while (rx_in == rx_out) {
+            }
+// Start Critical Section - don't interrupt while changing global buffer variables
+            __disable_irq();
+        }
+        rx_line[i] = rx_buffer[rx_out];
+        i++;
+        rx_out = (rx_out + 1) % buffer_size;
+    }
+// End Critical Section
+    __enable_irq();
+    rx_line[i-1] = 0;
+    return;
+}
+
+int WaitForResponse(char* response)
+{
+    do {
+        do {
+            read_line();
+        } while ((unsigned char)rx_line[0] <= 32);
+//        debug_pc.printf("Waiting for: %s, Received: %s\r\n", response, rx_line);
+    } while (strncmp(rx_line, response, strlen(response)));
+    return 0;
+}
+
+void Skywire_Rx_interrupt()
+{
+// Loop just in case more than one character is in UART's receive FIFO buffer
+// Stop if buffer full
+    while ((skywire.readable()) && (((rx_in + 1) % buffer_size) != rx_out)) {
+        rx_buffer[rx_in] = skywire.getc();
+        rx_in = (rx_in + 1) % buffer_size;
+    }
+    return;
+}
+
 int main()
 {    
 /*    int stage=0;
@@ -436,14 +495,61 @@
             TFT.set_font((unsigned char*) Arial12x12);
             TFT.locate(0,10);
             TFT.foreground(White);
-            for(int e=0; e<10; e++) {
-                if ((mselog[e]>0) && (mselog[e]!= NULL)) {
-                    TFT.printf("%s   MSE: %f\n\n", log[e], mselog[e]);
+            
+            
+            //Configure CRC, large frames, and write validation for SD Card
+            sd.crc(true);
+            sd.large_frames(true);
+            sd.write_validation(true);
+            
+            //Try to mount the SD card
+            TFT.locate(10,50);
+            TFT.printf("Mounting SD card...");
+            TFT.locate(10,60);
+            int row = 50;
+            int col = 10;
+            TFT.locate(10,row); TFT.printf("Mounting SD card..."); row+=10; 
+            if (sd.mount() != 0) {
+                TFT.printf("failed!");
+                TFT.locate(10,row); TFT.printf("failed!"); row+=10; 
+            } else {
+                TFT.printf("mounted successfully!\r\n");
+            TFT.locate(10,row); TFT.printf("mounted successfully"); row+=10; 
+            
+                // write event to log
+                TFT.locate(10,70);
+                FILE *fp = fopen("/sd/event_log.txt", "a");
+                if (fp != NULL) {
+                    fprintf(fp, "eureka!\r\n");
+                    fclose(fp);
+                    TFT.printf("success!\n");
+                    TFT.locate(10,row); TFT.printf("success"); row+=10; 
+                } else {
+                    TFT.printf("failed!\n");
+                    TFT.locate(10,row); TFT.printf("failed to write"); row+=10; 
                 }
+                sd.unmount();
             }
+            
+            TFT.locate(10,row); TFT.printf("Configuring Skywire"); row+=10; 
+            skywire.baud(115200);
+            skywire.attach(&Skywire_Rx_interrupt, Serial::RxIrq);
+            
+            //Turn off echo
+            skywire.printf("ATE0\r\n");
+            WaitForResponse("OK");
+            TFT.locate(10,row); TFT.printf("Connecting to the Network"); row+=10; 
+            // get IP address
+            skywire.printf("AT#SGACT=1,1\r\n");         // context activation (returns with IP address)
+            WaitForResponse("#SGACT");
+            WaitForResponse("OK");
+    
+
+
             TFT.locate(165,270);
             printf("Return");
             TFT.rect(150,265,220,285,Green);
+
             ps = ain3.read();
             if (ps==1)  {
                 wait(0.5);