ORG 00H MOV TMOD,#10H A1:MOV TL1,#BEH MOV TH1,#FCH SETB P1.0 ACALL DELAY CLR P1.0 ACALL DELAY SJMP A1 DELAY: SETB TR1 A2:JNB TF1,A2 CLR TR1 CLR TF1 RET END
when I compile this source I get the following error "EXP4.A51(3): error A45: UNDEFINED SYMBOL (PASS-2)"....i think it may be some problem in the compiler. my selected device is also from 8051 family.