Diff: main.cpp

Revision:

2:028e56dcc064

Parent:

1:965d7fb768b6

Child:

3:70182dad8745

--- a/main.cpp	Fri Feb 17 16:32:24 2017 +0000
+++ b/main.cpp	Fri Jul 14 16:06:58 2017 +0000
@@ -1,23 +1,102 @@
 #include "mbed.h"
 #include "EthernetInterface.h"
 
+#define LED_NUM 23
+#define LED_GLOBAL 4 // brightness 0-31
+#define LED_FREQ 500000 // spi
+
+#define SPI_MOSI    PTC6
+//#define SPI_MOSI    PTD2
+#define SPI_MISO    PTC7
+#define SPI_SCK     PTC5
+//#define SPI_SCK     PTD1
+
+ 
+SPI spi(SPI_MOSI, SPI_MISO, SPI_SCK);
+DigitalOut myled(LED1);
+DigitalOut myled1(LED2);
+
+int led_buf[LED_NUM];
+
+void dotStar () {
+    int i;
+
+    // start frame
+    for (i = 0; i < 4; i ++) {
+        spi.write(0);
+    }
+    // led frame
+    for (i = 0; i < LED_NUM; i ++) {
+        spi.write((7<<5) | LED_GLOBAL);
+        spi.write((led_buf[i] >> 16) & 0xff); // B
+        spi.write((led_buf[i] >> 8) & 0xff); // G
+        spi.write(led_buf[i] & 0xff); // R
+    }
+    // end frame
+    for (i = 0; i < 4; i ++) {
+        spi.write(1);
+    }
+}
+
 // Network interface
 EthernetInterface net;
 
+void dot_red(){
+    for (int i = 0; i < LED_NUM; i ++) {
+//        int c = ((color + i) % 7) + 1;
+        led_buf[i] = 0xff0000;
+    }
+    dotStar();
+}
+void dot_blue(){
+    for (int i = 0; i < LED_NUM; i ++) {
+//        int c = ((color + i) % 7) + 1;
+        led_buf[i] = 0x00ff00;
+    }
+    dotStar();
+}
+void dot_green(){
+    for (int i = 0; i < LED_NUM; i ++) {
+//        int c = ((color + i) % 7) + 1;
+        led_buf[i] = 0x0000ff;
+    }
+    dotStar();
+}
+
+
 // Socket demo
 int main() {
     // Bring up the ethernet interface
     printf("Ethernet socket example\n");
     net.connect();
-
+    
+    // needed vars
+    int i, c;
+    int color = 1;
+    myled1 = 0;
+    myled = 1;
+    spi.frequency(LED_FREQ);
+    
+    // first run of led color out: BLUE
+    for (int i = 0; i < LED_NUM; i ++) {
+        c = ((color + i) % 7) + 1;
+        led_buf[i] = 0xffff00;
+    }
+    dotStar();
+    myled = !myled;
+    myled1 = !myled1;
+    color ++;
+    if (color > 7) color = 1;
+    wait(0.2);
+    
     // Show the network address
     const char *ip = net.get_ip_address();
     printf("IP address is: %s\n", ip ? ip : "No IP");
 
     // Open a socket on the network interface, and create a TCP connection to mbed.org
-    TCPSocket socket;
+    UDPSocket socket;
     socket.open(&net);
-    socket.connect("www.arm.com", 80);
+    socket.connect("10.200.1.20", 4242);
 
     // Send a simple http request
     char sbuffer[] = "GET / HTTP/1.1\r\nHost: www.arm.com\r\n\r\n";
@@ -29,6 +108,36 @@
     int rcount = socket.recv(rbuffer, sizeof rbuffer);
     printf("recv %d [%.*s]\n", rcount, strstr(rbuffer, "\r\n")-rbuffer, rbuffer);
 
+    for (i = 0; i < LED_NUM; i ++) {
+        c = ((color + i) % 7) + 1;
+        led_buf[i] = 0x0000ff;
+    }
+    dotStar();
+    myled = !myled;
+    myled1 = !myled1;
+    color ++;
+    if (color > 7) color = 1;
+    wait(0.2);
+    
+    // Ok hell yea.  Connection established, enter main loop serving artnet
+    while(1) {
+        // get a command
+        char rbuffer[64];
+        int rcount = socket.recv(rbuffer, sizeof rbuffer);
+        
+        // service it
+        switch (rbuffer[0]) {
+            case 'r':
+                NVIC_SystemReset();
+                break;
+            case 'g':
+                dot_green();
+                break;
+            case 'b':
+                dot_blue();
+                break;
+        }
+    }
     // Close the socket to return its memory and bring down the network interface
     socket.close();