New Contiki port to STM32W108.

cpu/stm32w108/dev/uart1-putchar.c

@@ -0,0 +1,67 @@
+#include <stdio.h>
+#include "dev/uart1.h"
+
+
+#include PLATFORM_HEADER
+#include "hal/micro/micro-common.h"
+#include "hal/micro/cortexm3/micro-common.h"
+//#include "uart.h"
+
+#ifdef __GNUC__
+# define _LLIO_STDIN ((int) stdin)
+# define _LLIO_STDOUT ((int) stdout)
+# define _LLIO_STDERR ((int) stderr)
+# define _LLIO_ERROR  (-1)
+#else
+# ifdef __ICCARM__
+# include <yfuns.h>
+# endif
+#endif
+
+void __io_putchar(char c)
+{
+  uart1_writeb(c);
+}
+
+#undef putchar
+
+int putchar(int c)
+{
+  __io_putchar((char) c);
+  return c;
+}
+
+size_t _write(int handle, const unsigned char * buffer, size_t size)
+{
+  size_t nChars = 0;
+
+  if (handle != _LLIO_STDOUT && handle != _LLIO_STDERR) {
+    return _LLIO_ERROR;
+  }
+
+  if (buffer == 0) {
+    // This means that we should flush internal buffers.  
+    //spin until TX complete (TX is idle)
+    while ((SC1_UARTSTAT&SC_UARTTXIDLE)!=SC_UARTTXIDLE) {}
+    return 0;
+  }
+  
+  // ensure port is configured for UART
+  if(SC1_MODE != SC1_MODE_UART) {
+    return _LLIO_ERROR;
+  }
+
+  while(size--) {
+    __io_putchar(*buffer++);
+    ++nChars;
+  }
+
+  return nChars;
+}
+
+
+size_t _read(int handle, unsigned char * buffer, size_t size)
+{
+	return 0;
+}
+