my program is asm file (.a51) when i build it ,the message occurs .I hadn't found a way to solve it, It really makes me headache. would you help me please?
the message is as follows:
COPYRIGHT KEIL ELEKTRONIK GmbH 1987 - 2008 *** ERROR: COMMAND-FILE '' NOT FOUND one led.a51 - 0 Error(s), 0 Warning(s).
Thanks for patient and heartful reply.
this is the simple code i write:
ORG 000H MAIN: SETB P1.0 LCALL DELAY CLR P1.0 LCALL DELAY LJMP MAIN DELAY:MOV R7,#250 D1:MOV R6,#250 D2:DJNZ R6,D2 DJNZ R7,D1 RET END
this is the message after press the “build” button:
Build target 'Target 1' assembling one led.a51... A51 MACRO ASSEMBLER V8.02b - SN: K1UMC-BDZY1C COPYRIGHT KEIL ELEKTRONIK GmbH 1987 - 2008 *** ERROR: COMMAND-FILE '' NOT FOUND Target not created.
ORG 000H; MAIN: SETB P1.0; LCALL DELAY; CLR P1.0; LCALL DELAY; LJMP MAIN; DELAY:MOV R7,#250; D1:MOV R6,#250; D2:DJNZ R6,D2; DJNZ R7,D1; RET; END;