Diff: main.cpp

Revision:

3:c4427ce4d171

Parent:

2:1ae739c15893

Child:

4:d540dccad60a

--- a/main.cpp	Mon Apr 10 23:56:10 2017 +0000
+++ b/main.cpp	Mon Apr 10 20:40:05 2017 -0600
@@ -1,43 +1,86 @@
 #include "mbed.h"
-#include "DigitDisplay.h"
-
-DigitDisplay display(PE_11, PE_9); // 4-Digit Display connected to UART Grove connector
-DigitalOut   led(LED1);
-
-Ticker ticker;
-volatile uint8_t second = 0;
-volatile uint8_t minute = 0;
-volatile uint8_t hour = 12;
-volatile bool colon_enable = false;
 
-void tick()
-{
-    colon_enable = !colon_enable;
-    display.setColon(colon_enable);
-    
-    if (colon_enable) {
-        second++;
-        if (second >= 60) {
-            second = 0;
-            minute++;
-            if (minute >= 60) {
-                minute = 0;
-                hour++;
-                if (hour >= 24) {
-                    hour = 0;
-                }
-            }
-            
-            display.write(hour * 100 + minute);
-        }
+Serial pc(SERIAL_TX, SERIAL_RX);
+DigitalOut clk(PE_9);
+DigitalOut dat(PE_11);
+DigitalOut   led(LED1);
+
+// Avoid name conflict
+#define LED_GLB_CMDMODE 0x00  // Work on 8-bit mode
+#define LED_GLB_ON      0xff  // 8-bit 1 data
+#define LED_GLB_OFF     0x00  // 8-bit 0 data
+
+// Send 16 bits of data
+void sendData(unsigned int data)
+{
+  for (int i = 0; i < 16; i++)
+  {
+      wait_ms(1);
+    unsigned int state = (data & 0x8000) ? 1 : 0;
+    dat = state;
+
+    wait_ms(1);
+    clk = !clk;
+
+    data <<= 1;
+  }
+}
+
+// Send the latch command
+void latchData()
+{
+dat = 0;
+  wait_ms(10);
+
+  for (int i = 0; i < 4; i++)
+  {
+      wait_ms(1);
+    dat=1;
+    wait_ms(1);
+    dat=0;
+  }
+}
+
+// each element in the state will hold the brightness level
+// 00000000 darkest
+// 00000011 brighter
+// ........
+// 11111111 brightest
+void setData(int __state[])
+{
+
+  sendData(LED_GLB_CMDMODE);
+  for (int i = 0; i < 10; i++)
+  {
+	  // Go forward on __state
+      sendData(__state[i]);
+  }
+
+  // Two extra empty bits for padding the command to the correct length
+  sendData(0x00);
+  sendData(0x00);
+
+  latchData();
+}
+
+
+
+int main() {
+    pc.printf("\n\nstarting algorithm\n\n");
+    int led_bar[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+    int not_led_bar[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+    setData(led_bar);
+    /* display.setBrightness(7); */
+    /* display.write(100); */
+    /* display.write(5); */
+    /* display.write(hour * 100 + minute);
 */
+    /* ticker.attach(tick, 0.5);
 */
+    while(1) {
+        setData(led_bar);
+        wait(0.5);
+        setData(not_led_bar);
+        pc.printf("iteration\n");
+        led = !led;
+        wait(2);
     }
 }
-
-int main() {
-    display.write(hour * 100 + minute);
-    ticker.attach(tick, 0.5);
-    while(1) {
-        led = !led;
-        wait(0.5);
-    }
-}