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author | Cristian Maglie <c.maglie@bug.st> | 2013-06-01 23:16:02 +0200 |
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committer | Cristian Maglie <c.maglie@bug.st> | 2013-06-01 23:16:02 +0200 |
commit | 177ad96f866714a4962be57f69cd3d5a6334cde1 (patch) | |
tree | 1072239986340d6a239adac924eddf2e1d1ca566 /libraries/Robot_Control/Fat16util.h | |
parent | 6cff36ac5e85c74bcb45cc53491ad69d64520b36 (diff) | |
parent | d90fcca5839d13d57ed527d4009b78d22dafbde7 (diff) |
Merge branch 'merge-1.0.5' into ide-1.5.x-discovery
Diffstat (limited to 'libraries/Robot_Control/Fat16util.h')
-rw-r--r-- | libraries/Robot_Control/Fat16util.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/libraries/Robot_Control/Fat16util.h b/libraries/Robot_Control/Fat16util.h new file mode 100644 index 0000000..1fea068 --- /dev/null +++ b/libraries/Robot_Control/Fat16util.h @@ -0,0 +1,74 @@ +#ifndef Fat16util_h +#define Fat16util_h +/* Arduino FAT16 Library + * Copyright (C) 2008 by William Greiman + * + * This file is part of the Arduino FAT16 Library + * + * This Library is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This Library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with the Arduino Fat16 Library. If not, see + * <http://www.gnu.org/licenses/>. + */ +/** + * \file + * Useful utility functions. + */ +#if ARDUINO < 100 +#include <WProgram.h> +#else // ARDUINO +#include <Arduino.h> +#endif // ARDUINO +#include <avr/pgmspace.h> +/** Store and print a string in flash memory.*/ +#define PgmPrint(x) SerialPrint_P(PSTR(x)) +/** Store and print a string in flash memory followed by a CR/LF.*/ +#define PgmPrintln(x) SerialPrintln_P(PSTR(x)) +/** Defined so doxygen works for function definitions. */ +#define NOINLINE __attribute__((noinline)) +//------------------------------------------------------------------------------ +/** Return the number of bytes currently free in RAM. */ +static int FreeRam(void) { + extern int __bss_end; + extern int* __brkval; + int free_memory; + if (reinterpret_cast<int>(__brkval) == 0) { + // if no heap use from end of bss section + free_memory = reinterpret_cast<int>(&free_memory) + - reinterpret_cast<int>(&__bss_end); + } else { + // use from top of stack to heap + free_memory = reinterpret_cast<int>(&free_memory) + - reinterpret_cast<int>(__brkval); + } + return free_memory; +} +//------------------------------------------------------------------------------ +/** + * %Print a string in flash memory to the serial port. + * + * \param[in] str Pointer to string stored in flash memory. + */ +static NOINLINE void SerialPrint_P(PGM_P str) { + for (uint8_t c; (c = pgm_read_byte(str)); str++) Serial.write(c); +} +//------------------------------------------------------------------------------ +/** + * %Print a string in flash memory followed by a CR/LF. + * + * \param[in] str Pointer to string stored in flash memory. + */ +static NOINLINE void SerialPrintln_P(PGM_P str) { + SerialPrint_P(str); + Serial.println(); +} +#endif // #define Fat16util_h |