Diff: main.cpp

Revision:

21:74482f23c8fe

Parent:

20:107380f7eeb9

Child:

22:706708bc4c1a

--- a/main.cpp	Thu Aug 31 19:47:15 2017 +0000
+++ b/main.cpp	Fri Sep 01 17:41:34 2017 +0000
@@ -9,6 +9,46 @@
 
 int main() {
     
+    
+ // Power up the UART3 it's disabled on powerup.
+ LPC_SC->PCONP       |=  (1UL << 25);
+    
+ // Setup the PCLK for UART3
+ // LPC_SC->PCLKSEL1    &= ~(3UL << 18); // Clean
+ LPC_SC->PCLKSEL1    |=  (1UL << 18); // PCLK = CCLK
+
+ // Setup the baud rate for 9600
+ LPC_UART3->LCR       = 0x80;  // LPC_UART3->LCR      |= (1UL << 7);
+ LPC_UART3->DLM       = 0x2; 
+ LPC_UART3->DLL       = 0x71;
+ LPC_UART3->LCR       = 0x3;  // 8-bit character length
+
+ // Enable the pins on the device to use UART3
+ LPC_PINCON->PINSEL0 |= (3UL << 18);
+ LPC_PINCON->PINSEL0 |= (3UL << 20);
+
+ // Enable and reset UART3 FIFOs.
+ LPC_UART3->FCR       = 0x7;
+  
+ // Enable the interrupt
+ NVIC_EnableIRQ(UART3_IRQn);
+ 
+ // Init the UART3 RX interrupt
+ LPC_UART3->IER = 0x01;
+
+ LPC_UART3->LCR      &= ~(1UL << 7);
+ 
+ LPC_UART3->THR = 7;
+ 
+ /*
+ while(LPC_UART3->THRE = 0)
+ {
+     
+ }
+ */
+    
+    
+    /*
      float x, y, z ;
  
      MMA8452Q acc(p9,p10,0x1d);     // acceleration object
@@ -76,9 +116,17 @@
          cs = 1;
          wait(0.1);
         }
+        */
 }
 
 
+
+
+
+
+
+
+
 /* communication SPI 
 Serial pc(USBTX, USBRX); // tx, rx
 SPI acc(p11,p12,p13);