Diff: main.cpp

Revision:

1:7fe8da827212

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue May 12 05:44:33 2020 +0000
@@ -0,0 +1,96 @@
+/*
+ * Mbed Application program
+ *  SoftSerial(also BufferedSoftSerial) function test programs
+ *  UART 2 channels
+ *      (1) Mbed Serial communication line as "pc"
+ *      (2) Software Serial channel as "dev"
+ *
+ * Copyright (c) 2020 Kenji Arai / JH1PJL
+ *  http://www7b.biglobe.ne.jp/~kenjia/
+ *  https://os.mbed.com/users/kenjiArai/
+ *      Created:    May        9th, 2020
+ *      Revised:    May       12th, 2020
+ */
+
+/*
+    Tested board on OS5.15.3
+        Nucleo-L152RE,
+        Nucleo-F401RE, -F411RE, -F446RE,
+        Nucleo-L432KC, -L476RG
+        FRDM-K64F
+        
+    CAUTION!!
+        Due to bug inside TimerEvent, not stable on STM32 series Mbed
+        at this moment.
+        FRDM-K40 works fine(no trouble TimerEvent function).
+ */
+
+//  Include --------------------------------------------------------------------
+#include "mbed.h"
+#include "BufferedSoftSerial.h"
+
+//  Definition -----------------------------------------------------------------
+#define BAUD    9600
+//#define BAUD    14400
+//#define BAUD    19200  // No continuous transmission           
+//#define BAUD    38400  // NOT SUCCESS!!
+
+//  Constructor ----------------------------------------------------------------
+#if defined(TARGET_NUCLEO_L432KC)
+DigitalOut test_point(D12);
+Serial ser(D5, D4, BAUD);
+BufferedSoftSerial dev(D6,D3);
+#else
+DigitalOut test_point(A0);
+BufferedSoftSerial dev(D4,D3);
+#endif
+Serial pc(USBTX,USBRX, BAUD);
+
+//  RAM ------------------------------------------------------------------------
+
+//  ROM / Constant data --------------------------------------------------------
+
+//  Function prototypes --------------------------------------------------------
+void pc2dev(void const *args);
+void dev2pc(void const *args);
+
+//------------------------------------------------------------------------------
+//  Control Program
+//------------------------------------------------------------------------------
+osThreadDef(pc2dev, osPriorityNormal,1024);
+osThreadDef(dev2pc, osPriorityNormal,1024);
+
+int main()
+{
+    dev.baud(BAUD);
+    // Start tasks
+    osThreadCreate(osThread(pc2dev), NULL);
+    osThreadCreate(osThread(dev2pc), NULL);
+    while(true) {
+        ThisThread::sleep_for(1000000);
+    }
+}
+
+void pc2dev(void const *args)
+{
+    pc.printf("\r\nStart program\r\n");
+    while(true) {
+        if (pc.readable()) {
+            dev.putc(pc.getc());
+        } else {
+            ThisThread::yield();
+        }
+    }
+}
+
+void dev2pc(void const *args)
+{
+    dev.printf("\r\nStart program\r\n");
+    while(true) {
+        if (dev.readable()) {
+            pc.putc(dev.getc());
+        } else {
+            ThisThread::yield();
+        }
+    }
+}