Diff: main.cpp

Revision:

0:015c04037667

Child:

1:bf50812995c6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Oct 23 15:32:21 2015 +0000
@@ -0,0 +1,100 @@
+#include "mbed.h"
+#include "LIN/LinMaster.h"
+
+/*
+*Author: PMK
+*Connect MLX80020 EVB from Melexis to enable MBED to act as a LIN Master
+*This example sends messages specific to Melexis LIN RGB nodes with FW V 4.1.3
+*/
+
+/********* Configurable Data for LIN RGB portion **********/
+DigitalIn LINtransReset(p8);    //p8 can be connected to enable of LIN Transceiver
+LinMaster LinMaster(p10, p9);   /* p10 = RXD, p9 = TXD */
+
+const char NUMBEROFNODES = 20;  //Number of RGB slave devices
+const char FIRSTNAD = 0x61;     //Node address of first RGB slave in string
+
+/**********************************************************/
+
+LinMaster::Frame_t M2SFrame =
+{
+    LinMaster::M2S,                 // Direction
+    LinMaster::Enhanced,            // CRC Type
+    LinMaster::Normal,              // Break Type
+    8,                              // Data Length
+    0x24,                           // Frame ID
+    {0x7F, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00}  // Data BroadCast + LEDs OFF + USE NAD
+};
+
+void SetLED(int Address, int OnOff, int R, int G, int B, int I, int FadingTime, int FadingOnOff);
+void SetIntensity(int arg);
+void SetLEDsOnOff(int arg);
+void SetFadingTime(int arg);
+void SetFadingOnOff(int arg);
+
+int main()
+{
+   
+    //************ LIN Initialization ************************
+    LINtransReset.mode(PullUp); //set enable high
+    (void)LinMaster.init();     //initialize lin driver
+    LinMaster.baudrate(19200);  //set lin baudrate
+    wait_ms(500); //For init() to be completed
+    //*******************************************************
+        
+    SetLED(127, 1, 0, 255, 0, 0, 0, 0); //turn All LEDS Off
+    wait_ms(20);
+
+    for(;;)
+    {
+        SetLED(FIRSTNAD + (rand()%NUMBEROFNODES), 1, rand()%255, rand()%255, rand()%255, rand()%100, 1, 1); //set random node to random color and intensity
+        wait_ms(40);
+    }
+}
+
+void SetLED(int Address, int OnOff, int R, int G, int B, int I, int FadingOnOff, int FadingTime)
+{
+    M2SFrame.Data[0] = Address;
+    SetLEDsOnOff(OnOff);
+    SetFadingTime(FadingTime);
+    SetFadingOnOff(FadingOnOff);
+    SetIntensity(I);
+    M2SFrame.Data[5] = R;
+    M2SFrame.Data[6] = G;
+    M2SFrame.Data[7] = B;
+   
+    (void)LinMaster.send_frame(&M2SFrame);
+    while(LinMaster.status() != LinMaster::IDLE);
+}
+
+void SetLEDsOnOff(int arg)
+{
+    if (arg == 1 or arg == 0)
+    {   
+        M2SFrame.Data[2] = (M2SFrame.Data[2] & 0x7F) | (arg << 7);
+    }    
+}
+
+void SetFadingTime(int arg)
+{
+    if (arg >= 0 and arg <= 63) //FadingTime = 0-6.3ms, in steps of 100ms
+    {
+        M2SFrame.Data[3] = (M2SFrame.Data[3] & 0xC0) | (arg & 0x3F);
+    }     
+}
+
+void SetFadingOnOff(int arg)
+{
+    if (arg == 1 or arg == 0)
+    {   
+        M2SFrame.Data[4] = (M2SFrame.Data[4] & 0x7F) | (arg << 7);
+    }   
+}
+
+void SetIntensity(int arg)
+{
+    if (arg >= 0 and arg <= 100)
+    {   
+        M2SFrame.Data[4] = (M2SFrame.Data[4] & 0x80) | (arg & 0x7F);
+    }  
+}
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