Diff: main.cpp

Revision:

0:77572dc5bb31

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat May 09 16:00:37 2015 +0000
@@ -0,0 +1,58 @@
+#include "mbed.h"
+#include "BreathLed/BreathLed.h"
+#include "PeripheralPins.h"
+
+using namespace steeven;
+
+BreathLed led1(LED1);
+
+Serial pc(USBTX, USBRX);
+Serial uart1(PA_9, PA_10);
+
+/** NUCLEO_STM32F411RE uart hardware flow control with RTS/CTS
+* 
+* How to test: 
+*   0. Modify serial_api.c, change flow control type from NONE to:
+*         UartHandle.Init.HwFlowCtl  = UART_HWCONTROL_RTS_CTS;
+*   1. Continuesly send or paste large data to USB console
+*   2. Connect CTS(PA_11) pin to GND, data should sent with writable().
+* No need to connect a peer uart device.
+*/
+
+
+int main() {
+    char ch;
+    int i = 0;
+    int j = 0;
+    led1.loop(0.5, 0.2);
+    pc.baud(115200);
+    PinMap rts =  {PA_12,  UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)};
+    PinMap cts =  {PA_11,  UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)};
+    pin_function(rts.pin, rts.function);
+    pin_function(cts.pin, cts.function);
+    pin_mode(rts.pin, PullUp); //output, uart request peer to send
+    pin_mode(cts.pin, PullUp); //input, peer send 0 to allow uart send
+
+    uart1.baud(115200);
+
+    pc.printf("hello world!\n");
+    while (1) {
+        if (pc.readable()) {
+            i++;
+            ch = pc.getc();
+            if (uart1.writeable()) {
+                uart1.putc(ch);
+            } else {
+                pc.printf("%d/%d ", i,j); //if
+            }
+            if (i%50 == 49){
+                pc.printf("\r\n%d lost: %d \r\n", i,i-j);
+            }
+        }
+        if (uart1.readable()) {
+            ch = uart1.getc();
+            j++;
+        }
+    }
+}
+