Maxim Integrated / Mbed OS DS4424_Hello_Current_DAC_on_MAX32630FTHR

Example host software for the Maxim Integrated DS4424/DS4422 I2C Sink/Source Current DAC. Hosted on the MAX32630FTHR.

Dependencies:   max32630fthr DS4424_SINK_SOURCE_CURRENT_DAC_INPUT_OUTPUT_DAC USBDevice

Files at this revision

API Documentation at this revision

Revision 1:a7990c969d1a, committed 2018-05-12

Comitter:
phonemacro
Date:
Sat May 12 03:59:43 2018 +0000
Parent:
0:a3f9ce6b99f5
Child:
2:07fde4ba8e91
Commit message:
Sample read, writes for the DS4424

Changed in this revision

DS4424.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/DS4424.lib	Thu May 10 22:59:56 2018 +0000
+++ b/DS4424.lib	Sat May 12 03:59:43 2018 +0000
@@ -1,1 +1,1 @@
-DS4424#a010119890ed
+https://os.mbed.com/teams/MaximIntegrated/code/DS4424_SINK_SOURCE_CURRENT_DAC/#cead66dd3647

--- 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);