Tài liệu Chương 9: Lập trình cho bộ đếm/ bộ định thời trong 8051 doc
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Ch"ơng 9
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9.1 Lập trình các bộ định thời gian của 8051.
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9.1.1 Các thanh ghi cơ sở của bộ định thời.
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9.1.1.1 Các thanh ghi của bộ Timer 0.
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9.1.1.2 Các thanh ghi của bộ Timer 1.
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9.1.2 Thanh ghi TMOD (chế độ của bộ định thời).
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9.1.3 Bít cổng GATE.
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Lời giải:
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VÝ dô 9.12:
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9.1.4.3 T¹o mét ®é trÔ thêi gian lín.
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$:#-·#+3.$#43C#$%1#Z•'#'(e$#)b:#-,#$%E#$(23#43:'#)9#$(>#-D$#-?@)#+»'4#)C)(#-F$#)L#Tk#XO#T #
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9.1.4.4 Sử dụng bàn tính của Windows để tìm TH và TL.
#PO'#$d'(#<:Z)WZ:$*%#)b:#W3'A*iG#)9#'4:M#$%*'4#/CM#$d'(#P<#)b:#)(='4#$:#XO#%e$#
AE#G[#A\'4#->#$&/#%:#)C)#43C#$%1#)(*#Tk#XO#T ;#g3L#G[#$&/#43C#$%1#)(*#Tk#XO#T #X3#-,#$%E#
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qW:'#)C)#Gy#u#`#"(d:#+N'#"(L3#$%N'#<:Z)WZ:$*%#X&#Gy#)b:#$:#ZO#8c#+d$;#
Ví dụ 9.13:
#kãM#I3>/#$%:#)(?U'4#$%&'(#G:W#XO#$&/#-,#$%E#$(23#43:'#$(^*#43âM_#I(ô'4#$d'(# '#
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""$%p""#P)*"q(Z"""r"mIk"1f48"4,nk"#P)"'"(Z"
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9.1.5 Chế độ O.
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9.1.6 Lập trình chế độ 2.
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9.1.5.1 Các b^ớc lập trình cho chế độ 2.
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Ví dụ 9.14:
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9.1.5.2 Các trình hợp ngữ và các giá trị âm.
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Ví dụ 9.17:
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Lời giải:
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9.2 Lập trình cho bộ đếm.
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