Modified mbed library sources only for STM32F030K6, LQFP32 (0.8mm pitch) package, 32K Flash, 4K SRAM. Compiler target: Nucleo 32F030R8
Fork of mbed-src by
Diff: common/RawSerial.cpp
- Revision:
- 64:7b352733b00a
- Parent:
- 36:ab3ee77451e7
- Child:
- 299:fb529cc9bc22
diff -r a46ad637dc84 -r 7b352733b00a common/RawSerial.cpp --- a/common/RawSerial.cpp Thu Dec 19 09:00:06 2013 +0000 +++ b/common/RawSerial.cpp Thu Dec 19 13:15:07 2013 +0000 @@ -15,9 +15,12 @@ */ #include "RawSerial.h" #include "wait_api.h" +#include <cstdarg> #if DEVICE_SERIAL +#define STRING_STACK_LIMIT 120 + namespace mbed { RawSerial::RawSerial(PinName tx, PinName rx) : SerialBase(tx, rx) { @@ -31,6 +34,34 @@ return _base_putc(c); } +int RawSerial::puts(const char *str) { + while (*str) + putc(*str ++); + return 0; +} + +// Experimental support for printf in RawSerial. No Stream inheritance +// means we can't call printf() directly, so we use sprintf() instead. +// We only call malloc() for the sprintf() buffer if the buffer +// length is above a certain threshold, otherwise we use just the stack. +int RawSerial::printf(const char *format, ...) { + std::va_list arg; + va_start(arg, format); + int len = vsnprintf(NULL, 0, format, arg); + if (len < STRING_STACK_LIMIT) { + char temp[STRING_STACK_LIMIT]; + vsprintf(temp, format, arg); + puts(temp); + } else { + char *temp = new char[len + 1]; + vsprintf(temp, format, arg); + puts(temp); + delete[] temp; + } + va_end(arg); + return len; +} + } // namespace mbed #endif