Diff: uart_as_stdio/uart_as_stdio.cpp

Revision:

5:9b4d9c139186

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uart_as_stdio/uart_as_stdio.cpp	Sat Feb 27 01:14:00 2021 +0000
@@ -0,0 +1,46 @@
+/*
+ * mbed Application program
+ *      Redirect Standard Input/Output
+ *
+ * Copyright (c) 2021 Kenji Arai / JH1PJL
+ *  http://www7b.biglobe.ne.jp/~kenjia/
+ *  https://os.mbed.com/users/kenjiArai/
+ *      Created:    January   13th, 2021
+ *      Revised:    January   14th, 2021
+ */
+
+//  Include --------------------------------------------------------------------
+#include "mbed.h"
+
+//  Definition -----------------------------------------------------------------
+
+//  Constructor ----------------------------------------------------------------
+static BufferedSerial pc(USBTX, USBRX, 115200);
+
+//  RAM ------------------------------------------------------------------------
+
+//  ROM / Constant data --------------------------------------------------------
+
+//  Function prototypes --------------------------------------------------------
+
+//------------------------------------------------------------------------------
+//  Control Program
+//------------------------------------------------------------------------------
+uint8_t readable()
+{
+    return pc.readable();
+}
+
+void putc(uint8_t c)
+{
+    char dt[4];
+    dt[0] = (char)c;
+    pc.write(dt, 1);
+}
+
+uint8_t getc()
+{
+    char dt[4];
+    pc.read(dt, 1);
+    return (uint8_t)dt[0];
+}