Diff: main.cpp

Revision:

0:e9cce1154246

Child:

2:bebddee7347e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Feb 23 23:32:40 2018 +0000
@@ -0,0 +1,72 @@
+// PAT9125EL: Miniature Optical Navigation Chip reference code.
+// Version: 1.0
+// Latest Revision Date: 16 Feb. 2018
+// By PixArt Imaging Inc.
+// Primary Engineer: Vincent Yeh (PixArt USA)
+
+/*
+//=======================
+//Revision History
+//=======================
+Version 1.0 -- 16 Feb. 2018
+First release.
+*/
+
+#include "mbed.h"
+#include "registerArrays.h"
+//#include "SPIcommFunctions.h"
+#include "I2CcommFunctions.h"
+//Make sure you only have SPIcommFunctions or I2CcommFunctions enabled. You cannot include both headers.
+
+int main()
+{
+    pc.baud(115200);                    // Set baud rate to 115200. Remember to sync serial terminal baud rate to the same value.
+
+    #ifdef SPImode
+    spi.format(8,3);                    // Set SPI to 8 bits with inverted polarity and phase-shifted to second edge.
+    spi.frequency(1000000);             // Set frequency for SPI communication.
+    cs = 1;                             // Initialize chip select as inactive.
+    #endif
+    
+    #ifdef I2Cmode
+    i2c.frequency(400000);              // Set frequency for I2C communication.
+    #endif
+    
+    pc.printf("Program START\n\r");
+    
+    pc.printf("ID Check: %2X\n\r", readRegister(0x00)); //Checks product ID to make sure communication protocol is working properly.
+    if(readRegister(0x00) != 0x31)
+    {
+        pc.printf("Communication protocol error! Terminating program.\n\r");
+        return 0;
+    }
+    
+    writeRegister(0x06, 0x97);          //Software reset (i.e. set bit7 to 1)
+    wait_ms(1);                         //Delay 1 ms for chip reset timing.
+    writeRegister(0x06, 0x17);          //Ensure software reset is done and chip is no longer in that state.
+    
+    load(initialize, initialize_size);  //Load register settings from the "initialize" array
+    
+    
+    
+    if(readRegister(0x5E) == 0x04)      //These unlisted registers are used for internal recommended settings.
+    {
+        writeRegister(0x5E, 0x08);
+        
+        if(readRegister(0x5D) == 0x10)
+            writeRegister(0x5D, 0x19);
+    }
+    
+    writeRegister(0x09, 0x00);  // enable write protect 
+    
+    while(1)
+    {
+        //pc.printf("MOTION bit: %2X\n\r", (readRegister(0x02) & 0x80) >> 7);   //Prints motion bit for debugging. 1 = motion detected. 0 = no motion detected.
+        
+        if(readRegister(0x02) & 0x80)
+        {
+            grabData();
+            printData();
+        }
+    }
+}