Diff: main.cpp

Revision:

1:a7990c969d1a

Parent:

0:a3f9ce6b99f5

Child:

2:07fde4ba8e91

--- a/main.cpp	Thu May 10 22:59:56 2018 +0000
+++ b/main.cpp	Sat May 12 03:59:43 2018 +0000
@@ -41,7 +41,10 @@
 DigitalOut rLED(LED1);
 DigitalOut gLED(LED2);
 DigitalOut bLED(LED3);
-    
+
+I2C i2cBus(P3_4, P3_5);
+
+DS4424 ds4424_dac(i2cBus, DS4424::DS4424_I2C_SLAVE_ADRS0, DS4424::DS4424_IC);
     
 // main() runs in its own thread in the OS
 // (note the calls to Thread::wait below for delays)
@@ -49,7 +52,7 @@
 {
     int32_t value[4]={0,0,0,0};
     int ret, i;
-
+    
     DigitalOut rLED(LED1, LED_OFF);
     DigitalOut gLED(LED2, LED_OFF);
     DigitalOut bLED(LED3, LED_OFF);
@@ -58,18 +61,9 @@
     bLED = LED_ON;
     gLED = LED_ON;
 
-//    I2C i2cBus(P5_7, P6_0);
-    I2C i2cBus(P3_4, P3_5);
-    //i2cBus.frequency(400000);
-    DS4424 ds4424_dac(i2cBus, DS4424::DS4424_I2C_SLAVE_ADRS0);
+    i2cBus.frequency(400000);
 
-    ret = ds4424_dac.readRaw(value[0], DS4424::REG_OUT0); 
-    ret = ds4424_dac.readRaw(value[1], DS4424::REG_OUT1); 
-    ret = ds4424_dac.readRaw(value[2], DS4424::REG_OUT2); 
-    ret = ds4424_dac.readRaw(value[3], DS4424::REG_OUT3); 
-    for (i = 0; i < 4; i++) {
-        printf("Out%d = %d\r\n", i, value[i]);
-    }
+    // read each channel
     ret = ds4424_dac.writeRaw(127, DS4424::REG_OUT0); 
     ret = ds4424_dac.writeRaw(2, DS4424::REG_OUT1); 
     ret = ds4424_dac.writeRaw(-127, DS4424::REG_OUT2); 
@@ -82,11 +76,9 @@
     for (i = 0; i < 4; i++) {
         printf("Out%d = %d\r\n", i, value[i]);
     }
-    
-    //ret = ds4424_dac.printRawRegs(); 
-    //ret = ds4424_dac.printRegs(); 
+    printf("\r\n");
    
-    while (true) {
+    while (true) {  // Blink the blue-green LED 
         bLED = !bLED;
         gLED = !gLED;
         wait(1.0);