AdaWiki

--- lpc1343 [2010/09/08 19:47]
ladyada
+++ lpc1343 [2016/01/28 18:05] (current)
@@ Line 85: / Line 85: @@
 You'll see a message every second when the LED changes state
+====== Adding analog ======
+You can read from the ADC converter (it can do up to 200ksps) quite easily!
+<code>
+#include "sysinit.h"
+#include "core/adc/adc.h"
+int main (void)
+{
+  // Configure cpu and mandatory peripherals
+  systemInit();
+  // initialize the internal ADC
+  adcInit();
+  while (1)
+  {
+    #ifdef CFG_INTERFACE
+      // Handle any incoming command line input
+      cmdPoll();
+    #else
+      // Toggle LED @ 1 Hz
+      systickDelay(1000);
+      if (gpioGetValue(CFG_LED_PORT, CFG_LED_PIN))
+        gpioSetValue (CFG_LED_PORT, CFG_LED_PIN, CFG_LED_ON);
+      else
+        gpioSetValue (CFG_LED_PORT, CFG_LED_PIN, CFG_LED_OFF);
+	// Say Hello to my little friend!
+	printf("Analog 0: %d\n\r", adcRead(0));
+    #endif
+  }
+}
+</code>
+{{:lpcanalogtest.jpg?500|}}
+{{:analog0-pot.gif|}}