Diff: 3_main.cpp

Revision:

0:98865e300cd5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/3_main.cpp	Sun May 10 08:15:36 2020 +0000
@@ -0,0 +1,97 @@
+/*
+ * Mbed Application program
+ *  SoftSerial(also BufferedSoftSerial) function test programs
+ *  UART 3 channels
+ *      (1) Mbed Serial communication line as "pc"
+ *      (2) CPU another UART channel as "ser"
+ *      (3) 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       10th, 2020
+ */
+
+/*
+    Tested board on OS5.15.3
+        Nucleo-F446RE, Nucleo-L432KC
+ */
+
+//  Pre-selection --------------------------------------------------------------
+#include    "select_example.h"
+//#define EXAMPLE_3
+#ifdef EXAMPLE_3
+#warning "Select 3"
+
+//  Include --------------------------------------------------------------------
+#include "mbed.h"
+#include "BufferedSoftSerial.h"
+
+//  Definition -----------------------------------------------------------------
+#if (MBED_MAJOR_VERSION == 2)
+#error "Cannot run on OS2"
+#endif
+
+//  Constructor ----------------------------------------------------------------
+#if defined(TARGET_NUCLEO_L432KC)
+DigitalOut test_point(D12);
+Serial ser(D5, D4, 9600);
+BufferedSoftSerial dev(D6,D3);
+#elif defined(TARGET_NUCLEO_F446RE)
+DigitalOut test_point(A0);
+Serial ser(D8, D2, 9600);
+BufferedSoftSerial dev(D4,D3);
+#endif
+Serial pc(USBTX,USBRX, 9600);
+
+//  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()
+{
+    // Start tasks
+    osThreadCreate(osThread(pc2dev), NULL);
+    osThreadCreate(osThread(dev2pc), NULL);
+    // main routine
+    int count = 0;
+    while(true) {
+        ser.printf( "Time passed %4d [sec]\r\n", count++);
+        ThisThread::sleep_for(1000);
+    }
+}
+
+void pc2dev(void const *args)
+{
+    while(true) {
+        if (pc.readable()) {
+            dev.putc(pc.getc());
+        } else {
+            ThisThread::yield();
+        }
+    }
+}
+
+void dev2pc(void const *args)
+{
+    while(true) {
+        if (dev.readable()) {
+            pc.putc(dev.getc());
+        } else {
+            ThisThread::yield();
+        }
+    }
+}
+
+#endif //#ifdef EXAMPLE_3
\ No newline at end of file