AVR单片机实用C语言程序设计配套光盘

AvrX for avr-gcc, version 2.6 19-Sep-2005 - Updated for WinAvr 3.4.3. - Used new WinAvr makefile template. - Added AvrXFifo facility - Removed "serialio.S" from library as it is processor dependent. - Renamed all assembly files from *.s to *.S to match GCC conventions. - changed task function attribute to "noreturn" so frame variables would work. - Modified select tasking primitives to work on both tasks and interrupt handler. The primitives also preserve the I flag across calls. - Updated code for IAR per Steve krepelka. Removed avrio.h as a result. - Put all changed & removed files into 2.6e subdirectory to facilitate testing in case problems are found in the future. - all samples & test cases built and run. 17-May-2004 - avrx_reschedule.s was broken (always has been): had to add "begin_critical" just prior to the "IntProlog" in AvrXYeild(). 05-Jan-2004 - avrx_reschedule.s was broken (always has been): had to update & fix spelling of "AvrXYeild" -> AvrXYield. Added the file to the library as well. 31-May-2002 Modifications, changes needed to sucessfully compile and run on the mega128 using test release 2 avrgcc128 compiler (alpha 3.1 release) serialio.h - new file, function prototypes serialio.s - Fixed interrupt handler names (used defines) - Fixed USART0 init (lots of renames for existing register and bits that got changed for no apparent reason) monitor.s - Fixed address handling in modify memory command. It used to wrap oddly (upper byte not being preserved) avrx_generatesinglestepinterrupt.s - Those bit name changes again (CS00 -> CS0 for mega chip) avrx_eeprom.s - Fixed use of EEARH instead of EEARL+1 so it will compile for smaller chips w/o error. NB: With the new GCC compiler, the existing support for IAR compilers will fail in the interrupt vector segment. If you use IAR you will need to fix this on your own. 8-June-2001 After executing a "make clean" the directory listing is as follows: avrx-io.h (IAR wrapper for io-avr.h) avrx.h avrx.inc avrx.xlb (IAR linker) avrx_canceltimer.s avrx_canceltimermessage.s avrx_eeprom.s avrx_halt.s avrx_message.s avrx_priority.s avrx_recvmessage.s avrx_resetsemaphore.s avrx_semaphores.s avrx_singlestep.s avrx_starttimermessage.s avrx_suspend.s avrx_tasking.s avrx_terminate.s avrx_testsemaphore.s avrx_timequeue.s makefile monitor.s README.txt serialio.s avrx-signal.h (IAR wrapper for sig-avr.h) ioavr.h (IAR's version of io-avr.h) avrx_generatesinglestepinterrupt.s avrx-ctoasm.inc avrx_iar_vect.s (Avrx's interrupt table for IAR) MAKEFILE instructions: The makefile depends upon the environment variable AVRX being set to the root directory of the AvrX distribution. E.g. the parent directory where this ReadMe.txt file is found. make - Will build both IAR and GCC libraries make gcc make iar make clean - will clean out the directory ENVIRONMENT The examples were developed and compiled under avr-gcc 3.0 (anything higher than 2.97 should work) that can be found at: http://combio.de/avr http://www.avrfreaks.net You need a copy of IAR Atmel AVR C/EC++ Compiler V2.25B/WIN or greater to build the kernel and samples for IAR C. The kernel is written to conform to IAR A90 C compiler, but I don't have that compiler and there will certainly be some code tweaking needed - mainly in alternate directives, etc. the actual code should be compatible. DISCLAIMER: I work with windows only. Your milage may vary with Linux. In particular, I try to keep file names consistant, but since windows hides upper/lower case from me, I might have missed one or two. Please let me know of problems or suggestions or, better yet solutions to this problem. - Larryba@barello.net