Introduction - If you have any usage issues, please Google them yourself
Music Box Music Box SCM SCM procedures have three music ORG 0000H LJMP START ORG 000BH INC 20H interrupt, the interrupt counter plus 1 MOV TH0,# 0D8H MOV TL0,# 0EFH 12M crystal, the formation of 10 ms interrupt RETI START : MOV SP,# 50H MOV TH0,# 0D8H MOV TL0,# 0EFH MOV TMOD,# 01H MOV IE,# 82H MUSIC0: NOP MOV DPTR,# DAT table