Diff: main.cpp

Revision:

8:e985d3e26b75

Parent:

6:684c51f32c1d

Child:

9:3c7f27df0b01

diff -r 55708293bda8 -r e985d3e26b75 main.cpp
--- a/main.cpp	Mon Feb 06 23:40:01 2017 +0000
+++ b/main.cpp	Thu Sep 07 01:51:21 2017 +0000
@@ -1,8 +1,7 @@
 #include "mbed.h"
 #include "max32630fthr.h"
 #include "USBSerial.h"
-
-MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
+//#include "string.h"
 
 // Hardware serial port over DAPLink
 Serial daplink(P2_1, P2_0);
@@ -10,29 +9,214 @@
 // Virtual serial port over USB
 USBSerial microUSB;
 
+SPI spi(P5_1, P5_2, P5_0); // mosi, miso, sclk
+DigitalOut spicsb(P4_0); // spi csb line
+
+DigitalOut p3_0(P3_0);
+DigitalOut p3_1(P3_1);
+DigitalOut p3_2(P3_2);
+DigitalOut p3_3(P3_3);
+DigitalOut p5_3(P5_3);
+DigitalOut p5_4(P5_4);
+DigitalOut p5_5(P5_5);
+DigitalOut p5_6(P5_6);
+
 DigitalOut rLED(LED1);
 DigitalOut gLED(LED2);
 DigitalOut bLED(LED3);
+MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
+
+int ascii(char a, char b);
 
 // main() runs in its own thread in the OS
 // (note the calls to Thread::wait below for delays)
 int main()
 {
-    int c;
-
-    daplink.printf("daplink serial port\r\n");
-    microUSB.printf("micro USB serial port\r\n");
-    rLED = LED_ON;
-    gLED = LED_ON;
-    bLED = LED_OFF;
-
+    char buf[10];
+    
+    gLED = LED_OFF;
+    bLED = LED_ON;
     rLED = LED_OFF;
-
+    spicsb = 1;
+    pegasus.max14690.ldo3SetVoltage(3600);
+    wait(1.0);
+    
+    p3_0 = 0;
+    p3_1 = 1;
+    
+    p3_2 = 1;
+    p3_3 = 0;
+    
+    p5_3 = 1;
+    p5_4 = 0;
+    
+    p5_5 = 1;
+    p5_6 = 1;
+    
     while(1) {
-        c = microUSB.getc();
-        microUSB.putc(c);
-        daplink.putc(c);
-        bLED = c & 1;
+        
+        microUSB.scanf("%s", buf);
+        
+        // ping command, responds with pong
+        if(buf[0]=='p' && buf[1]=='i' && buf[2]=='n' && buf[3]=='g') {
+            microUSB.printf("pong\r\n");
+            gLED=LED_OFF;
+            wait(0.01);
+            gLED=LED_ON;
+            wait(0.01);
+            gLED=LED_OFF;
+        }
+        // spi write command: spiw.addr.data
+        // addr and data in hex
+        else if (buf[0]=='s' && buf[1]=='p' && buf[2]=='i' && buf[3]=='w') {
+            int response = 0;
+            int payload[2];
+            payload[0] = ascii((int)buf[5],(int)buf[6]);
+            payload[1] = ascii((int)buf[8],(int)buf[9]);
+            spicsb = 0;
+            response = spi.write(payload[0]);
+            response = spi.write(payload[1]);
+            spicsb = 1;
+            microUSB.printf("ack\r\n");
+            gLED=LED_OFF;
+            wait(0.01);
+            gLED=LED_ON;
+            wait(0.01);
+            gLED=LED_OFF;
+        }
+        // spi read command: spir.addr
+        else if (buf[0]=='s' && buf[1]=='p' && buf[2]=='i' && buf[3]=='r') {
+            int response = 0;
+            int payload;
+            payload = ascii((int)buf[5],(int)buf[6]);
+            spicsb = 0;
+            response = spi.write(payload);
+            spicsb = 1;
+            microUSB.printf("ack.%i\r\n", response);
+            gLED=LED_OFF;
+            wait(0.01);
+            gLED=LED_ON;
+            wait(0.01);
+            gLED=LED_OFF;
+        }
+        // digital pin p5_5
+        else if (buf[0]=='p' && buf[1]=='5' && buf[2]=='_' && buf[3]=='5') {
+            if (buf[5]=='1') p5_5 = 1;
+            else p5_5 = 0;
+            microUSB.printf("ack\r\n");
+            gLED=LED_OFF;
+            wait(0.01);
+            gLED=LED_ON;
+            wait(0.01);
+            gLED=LED_OFF;
+        }
+        // digital pin p5_6
+        else if (buf[0]=='p' && buf[1]=='5' && buf[2]=='_' && buf[3]=='6') {
+            if (buf[5]=='1') p5_6 = 1;
+            else p5_6 = 0;
+            microUSB.printf("ack\r\n");
+            gLED=LED_OFF;
+            wait(0.01);
+            gLED=LED_ON;
+            wait(0.01);
+            gLED=LED_OFF;
+        }
+        // digital pin p5_3
+        else if (buf[0]=='p' && buf[1]=='5' && buf[2]=='_' && buf[3]=='3') {
+            if (buf[5]=='1') p5_3 = 1;
+            else p5_3 = 0;
+            microUSB.printf("ack\r\n");
+            gLED=LED_OFF;
+            wait(0.01);
+            gLED=LED_ON;
+            wait(0.01);
+            gLED=LED_OFF;
+        }
+        // digital pin p5_4
+        else if (buf[0]=='p' && buf[1]=='5' && buf[2]=='_' && buf[3]=='4') {
+            if (buf[5]=='1') p5_4 = 1;
+            else p5_4 = 0;
+            microUSB.printf("ack\r\n");
+            gLED=LED_OFF;
+            wait(0.01);
+            gLED=LED_ON;
+            wait(0.01);
+            gLED=LED_OFF;
+        }
+        // digital pin p3_1
+        else if (buf[0]=='p' && buf[1]=='3' && buf[2]=='_' && buf[3]=='1') {
+            if (buf[5]=='1') p3_1 = 1;
+            else p3_1 = 0;
+            microUSB.printf("ack\r\n");
+            gLED=LED_OFF;
+            wait(0.01);
+            gLED=LED_ON;
+            wait(0.01);
+            gLED=LED_OFF;
+        }
+        // digital pin p3_0
+        else if (buf[0]=='p' && buf[1]=='3' && buf[2]=='_' && buf[3]=='0') {
+            if (buf[5]=='1') p3_0 = 1;
+            else p3_0 = 0;
+            microUSB.printf("ack\r\n");
+            gLED=LED_OFF;
+            wait(0.01);
+            gLED=LED_ON;
+            wait(0.01);
+            gLED=LED_OFF;
+        }
+        // digital pin p3_3
+        else if (buf[0]=='p' && buf[1]=='3' && buf[2]=='_' && buf[3]=='3') {
+            if (buf[5]=='1') p3_3 = 1;
+            else p3_3 = 0;
+            microUSB.printf("ack\r\n");
+            gLED=LED_OFF;
+            wait(0.01);
+            gLED=LED_ON;
+            wait(0.01);
+            gLED=LED_OFF;
+        }
+        // digital pin p3_2
+        else if (buf[0]=='p' && buf[1]=='3' && buf[2]=='_' && buf[3]=='2') {
+            if (buf[5]=='1') p3_2 = 1;
+            else p3_2 = 0;
+            microUSB.printf("ack\r\n");
+            gLED=LED_OFF;
+            wait(0.01);
+            gLED=LED_ON;
+            wait(0.01);
+            gLED=LED_OFF;
+        }
     }
+    
 }
 
+int ascii(char a, char b)
+{
+    int val1 = 0;
+    int val2 = 0;
+    int val = 0;
+    if(a>64 && a<71)
+    {
+        val1 = (int)a-55;
+    }
+    else if(a>96 && a<103)
+    {
+        val1 = (int)a-87;
+    }
+    else val1 = (int)a-48;
+    
+    if(b>64 && b<71)
+    {
+        val2 = (int)b-55;
+    }
+    else if(b>96 && b<103)
+    {
+        val2 = (int)b-87;
+    }
+    else val2 = (int)b-48;
+    
+    val=16*val1+val2;
+    
+    return (char)val;
+}
\ No newline at end of file