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I am a hardware system/circuit designer attempting to utilize a c8051f330 MCU to save a bunch of hardware in the design of some special test equipment. In an attepmt to learn how to design and implement C code I am using some small test programs. I have been unsuccesful in understanding and clearing a syntax error encountered in my attempt to program an interrupt service routine which uses the overflow of timer0 to generate interrupt 1. The section of the program listing whic has the error is: 69 void timer0_ISR (void) interrupt 1 70 { 71 1 72 1 LED = ~LED 73 1 } *** ERROR C141 IN LINE 73 OF SPECIAL_FLASH_PROGRAM.C: syntax error near '}' 74 75/*------------End of ALL STUFF---------------------*/ Thanks in advance for your help!! It's greatly appreciated. Dennis
Andy, You're absolutely right on all counts. I currently have a couple of "C" books "C and the 8051" by Thomas Shultz and Embedded Programming with field programmable Mixed Signal uControllers" I realize that I need some classromm training in C Language programming and have registered for a course at the local community college (Bakersfield College, Bakersfield, CA). Unfortunately the next class does'nt begin until next Fall. In the meantime I'm attempting to get a head start. Thanks for your suggestions for books. I'll definitely pick up at least one of the two, probably the one from Keil, which you recommended. Thanks Again! Dennis
Do not make the mistake of buying another "C and '51" book. Those books do NOT teach you C, they are "the 51' for programmers already versed in C". A good self-teach book would be Kochan: "Programming in ANSI C". It is so much easier to learn the C fundamentals on the PC than on a '51. PS: there are posts here or on 8052.com about free Borland C compilers for the PC which will allow you to work through the examples Erik
Thanks for the tip. Dennis
Hey guys, I found my error. When I added the semicolon, as suggested earlier, I placed it incorrectly. When I corrected that I got 0 Warnings and 0 Errors. Thanks for your help, I'll probably be back for more. Dennis-
It is typical with programming languages (not just 'C') that one small mistake (eg, a misplaced semicolon) will cause very many error messages. This is because the compiler just loses sync with the source code - so nothing makes sense to it any more! Therefore, your general approach should be to fix the first reported error first; if subsequent error reports aren't immediately obvious, just rebuild and see if they go away!