Diff: main.cpp

Revision:

0:7006377c8a24

Child:

1:1db1c42a2348

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Jun 06 08:24:49 2017 +0000
@@ -0,0 +1,46 @@
+#include "mbed.h"
+#include "SimpleDMA.h"
+#include <algorithm>
+ 
+RawSerial pc(USBTX, USBRX); // PC tx, rx
+RawSerial device(PTE0, PTE1); // UART1 tx, rx
+ 
+DigitalOut led1(LED_RED);
+DigitalOut led2(LED_GREEN);
+
+SimpleDMA dma_pc;
+SimpleDMA dma_device;
+    
+int main() 
+{   
+    // Enable the TX and RX dma on UART1
+    UART1->C2 |= UART_C2_RIE_MASK | UART_C2_TIE_MASK ;  
+    UART1->C4 |= UART_C4_RDMAS_MASK | UART_C4_TDMAS_MASK;
+  
+    // TODO: Configure dma_device to transfer data from UART1 to UART0
+    // ...
+    
+    uint8_t buffer[128];
+    uint8_t buffer_ptr = 0; 
+
+    while(1) {
+        char c = pc.getc();    
+        buffer[buffer_ptr] = c;
+        buffer_ptr = (buffer_ptr + 1) % sizeof(buffer);   
+        
+        if(c == '\r')
+        {
+            buffer[buffer_ptr] = '\n';
+            ++buffer_ptr;
+            
+            led2 = !led2;
+            
+            // TODO: Trigger dma_pc to transfer data from the buffer to UART1
+            // ....
+            
+            buffer_ptr = 0;
+        }                               
+    }
+}
+
+