Diff: main.cpp

Revision:

11:8a8562282546

Parent:

10:aec9f740a325

--- a/main.cpp	Fri Sep 22 18:15:14 2017 +0000
+++ b/main.cpp	Tue Sep 26 20:56:05 2017 +0000
@@ -13,8 +13,9 @@
 USBSerial microUSB;
 
 SPI spi(P5_1, P5_2, P5_0); // mosi, miso, sclk
-I2C i2c(P3_4, P3_5);
+I2C *i2c;
 DigitalOut spicsb(P4_0); // spi csb line
+PwmOut *pwm;
 
 DigitalOut p3_0(P3_0);
 DigitalOut p3_1(P3_1);
@@ -46,7 +47,7 @@
     spicsb = 1;
     pegasus.max14690.ldo3SetVoltage(1800);
     wait(1.0);
-    i2c.frequency(1000000);
+    //i2c.frequency(100000);
     
     p3_0 = 0;
     p3_1 = 1;
@@ -91,18 +92,55 @@
             wait(0.01);
             gLED=LED_OFF;
         }
-        // virtual int write(const char *tx_buffer, int tx_length, char *rx_buffer, int rx_length);
-        else if (buf[0]=='t' && buf[1]=='e' && buf[2]=='s' && buf[3]=='t') {
+        
+        // spi transmit command
+        // write to SPITX_EN register and leave CS low
+        else if (buf[0]=='s' && buf[1]=='p' && buf[2]=='i' && buf[3]=='t') {
             int resp = 0;
             char payload[2];
             char response[2];
-            payload[0] = 0x5A;
-            payload[1] = 0xA5;
+            payload[0] = ascii((int)buf[5],(int)buf[6]);
+            payload[1] = ascii((int)buf[8],(int)buf[9]);
             spicsb = 0;
             resp = spi.write(payload, sizeof(payload), response, sizeof(response));
+            microUSB.printf("ack.%i\r\n",resp);
+            gLED=LED_OFF;
+            wait(0.01);
+            gLED=LED_ON;
+            wait(0.01);
+            gLED=LED_OFF;
+        }
+        
+        // set csb high
+        else if (buf[0]=='c' && buf[1]=='s' && buf[2]=='b' && buf[3]=='h') {
             spicsb = 1;
+            microUSB.printf("ack\r\n");
+            gLED=LED_OFF;
+            wait(0.01);
+            gLED=LED_ON;
+            wait(0.01);
+            gLED=LED_OFF;
+        }
+        
+        else if (buf[0]=='p' && buf[1]=='w' && buf[2]=='m' && buf[3]=='o') {
+            pwm = new PwmOut(P3_4);
+            pwm->period_us(20);
+            pwm->write(0.50f);
             
-            microUSB.printf("ack.%i\r\n",resp);
+            microUSB.printf("ack\r\n");
+            gLED=LED_OFF;
+            wait(0.01);
+            gLED=LED_ON;
+            wait(0.01);
+            gLED=LED_OFF;
+        }
+        
+        else if (buf[0]=='t' && buf[1]=='e' && buf[2]=='s' && buf[3]=='t') {
+            pwm = new PwmOut(P3_4);
+            pwm->period(0.5f);
+            pwm->write(0.50f);
+            
+            microUSB.printf("ack\r\n");
             gLED=LED_OFF;
             wait(0.01);
             gLED=LED_ON;
@@ -127,13 +165,15 @@
             wait(0.01);
             gLED=LED_OFF;
         }
+        
         // i2c write command: i2cw.addr.data
         else if (buf[0]=='i' && buf[1]=='2' && buf[2]=='c' && buf[3]=='w') {
+            i2c = new I2C(P3_4, P3_5);
             int response = 0;
             char payload[2];
             payload[0] = ascii((int)buf[5],(int)buf[6]);
             payload[1] = ascii((int)buf[8],(int)buf[9]);
-            response = i2c.write(LF21_I2C_WRITE, payload, sizeof(payload));
+            response = i2c->write(LF21_I2C_WRITE, payload, sizeof(payload));
             microUSB.printf("ack.%i\r\n", response);
             gLED=LED_OFF;
             wait(0.01);
@@ -143,13 +183,14 @@
         }
         // i2c read command: i2cr.addr
         else if (buf[0]=='i' && buf[1]=='2' && buf[2]=='c' && buf[3]=='r') {
+            i2c = new I2C(P3_4, P3_5);
             int response = 0;
             char address[1];
             char payload[1];
             payload[0] = 0xFF;
             address[0] = ascii((int)buf[5],(int)buf[6]);
-            response = i2c.write(LF21_I2C_WRITE, address, sizeof(address), true);
-            response = i2c.read(LF21_I2C_READ, payload, sizeof(payload));
+            response = i2c->write(LF21_I2C_WRITE, address, sizeof(address), true);
+            response = i2c->read(LF21_I2C_READ, payload, sizeof(payload));
             microUSB.printf("ack.%i.%i\r\n", response, payload[0]);
             gLED=LED_OFF;
             wait(0.01);
@@ -157,6 +198,7 @@
             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;