Diff: main.cpp

Revision:

2:ae0b95d42407

Parent:

1:15df36975a85

Child:

3:f74f521b2e46

--- a/main.cpp	Thu Mar 19 04:22:27 2015 +0000
+++ b/main.cpp	Sat Feb 18 12:54:01 2017 +0000
@@ -1,14 +1,122 @@
 #include "mbed.h"
+
+#if 1
+
+#ifdef USE_LIB
 #include "PCAL9555.h"
+#endif
+
+#if defined(TARGET_LPC81X)
+//PCAL9555    gpio_exp(P0_10, P0_11);
+I2C    gpio_exp(P0_10, P0_11);
+#else
+//PCAL9555    gpio_exp(SDA, SCL);
+I2C         gpio_exp(SDA, SCL);
+#endif
+
+//Serial      pc(USBTX, USBRX);
+Ticker      tick;
+
+static int _seg = 0;
+static int _chrs[4];
+
+const char dispTabl[] = {
+    0x7E, // 0
+    0x30, // 1
+    0x6D, // 2
+    0x79, // 3
+    0x33, // 4
+    0x5B, // 5
+    0x5F, // 6
+    0x70, // 7
+    0x7F, // 8
+    0x7B, // 9
+};
+
+void update()
+{
+    int port_0;
+    int _data;
+    
+    _data = (dispTabl[_chrs[_seg]]);
 
-PCAL9555    gpio_exp( p28, p27, 0xE8 );    //  SDA, SCL, Slave_address(option)
-GpioBusOut  mypins( gpio_exp, X0_0, X0_1, X0_2, X0_3 );
- 
-int main() {
-    while( 1 ) {
-        for( int i = 0; i < 16; i++ ) {
-            mypins  = i;
-            wait( 0.1 );
-        }
+    switch(_seg) {
+        case 0:
+            port_0 = 0x70;
+            _seg = 1;
+            break;
+        case 1:
+            port_0 = 0xb0;
+            _seg = 2;
+            break;
+        case 2:
+            port_0 = 0xd0;
+            _seg = 3;
+            break;
+        case 3:
+            port_0 = 0xe0;
+            _seg = 0;
+            break;
+
+    }
+#ifdef USE_LIB
+    gpio_exp.write( (_data << 8) | port_0 );
+#else
+    char buf[3];
+    buf[0] = 2; // OUTPUT
+    buf[1] = port_0;
+    buf[2] = _data;    // output
+    gpio_exp.write(0x40, buf, 3);
+#endif
+}
+
+void write_number(int num)
+{
+    num %= 10000;
+    _chrs[0] = (num/1000);
+    _chrs[1] = ((num/100)%10);
+    _chrs[2] = (((num/10)%100)%10);
+    _chrs[3] = (((num%1000)%100)%10);
+}
+
+int main()
+{
+#ifdef USE_LIB
+    gpio_exp.configure( 0x0000 );           //  Set all pins: output
+#else
+    char buf[3];
+    buf[0] = 0x06; // CONFIG
+    buf[1] = 0;    // output
+    buf[2] = 0;    // output
+    gpio_exp.write(0x40, buf, 3);
+#endif
+
+    tick.attach(&update, 0.005); // 5msec
+
+    //pc.printf("PCAL9555 test program\n");
+
+    int cnt = 0;
+    while(1) {
+        write_number(cnt++);
+        wait(0.1);
     }
 }
+
+void error(const char* format, ...) {
+}
+
+#else
+
+DigitalOut led(LED1);
+
+int main()
+{
+    printf("hello\n");
+    
+    while(1) {
+        led = !led;
+        wait(0.3);
+    }
+}
+
+#endif