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nec,ir,协议
篇一：nec码红外遥控完整编码
红外遥控编码程序如下：
nec.sectiondata
a_Rem_codedb;keydatacode
a_customeR_1db;遥控器头码（客户码）低八位a_customeR_2db;遥控器头码（客户码）高八位#definecus_6221_100110100b;1234h
#definecus_6221_200010010b
;@------------------------------------------------
nec_code.sectioncode
;@*************subRoutine[xx]:sendRemotecode************;;遥控码发送：
send_Remote_code:
clrwdt;清除进位标志，检测遥控发送的有效的按键
2 20 szfg_sendactive;sz表示以0结尾的字符串
jmpReady_send;跳转到Ready_send模块
ret
Ready_send:
nec_code:
mova,a_key_num;将数值发送到寄存器a中，直接寻址
movm_tblp,a
tabRdla_Rem_code;查表专用指令
moVa,cus_6221_1;读取遥控头码（客户码）低八位数值
moVa_customeR_1,a
moVa,cus_6221_2
moVa_customeR_2,a
以上为Ready_send运行模块，同时是为后面nec码发送的准备；首先将一个按键的数值已以直接寻址方式发送到寄存器a中，将寄存器a的是发送到m_tblp中，然后查表a_Rem_code，将cus_6221_1的值发送到寄存器中，在赋值给遥控器头码（客户码）低八位a_customeR_1，同理，将cus_6221_2赋值给遥控器头码（客户码）低八位a_customeR_2，随后即开始发送nec遥控码。nec引导码发送并开始编译：
;;---startingsendnecRemotecode---
send_nec:;checknokeycodeffh
3 20 sizaa_Rem_code;取出变量的大小
jmpleadnec_code;跳转指令
Ret;返回地址出栈，从而实现转移到返回地址处
leadnec_code:;1instructioncycle=8.79us
clrpn_iR;highlevel9ms(455khz:1023cycle)mova,002d;[(3*168)+5]*2=1018
mova_sR13,a
leadind_code_00:
mova,168d
movm_acc,a
leadind_code_01:
sdzm_acc;结果为零，则跳过下一条指令
jmpleadind_code_01
sdza_sR13
jmpleadind_code_00
nop2
nop2
nop;空操作指令，占用一个机器周期,用于延时或程序指令的对齐setpn_iR;置位标志，即将某一位置1
clrwdt
mova,001d;lowlevel2.5ms(284cycle)
4 20 mova_sR13,a;[(4*69)+5]*1=281
lead_code_04:
mova,70d
movm_acc,a
lead_code_05:
nop
sdzm_acc
jmplead_code_05
sdza_sR13
jmplead_code_04
clrwdt
szfg_Repeat;checkRepeatkey
jmpRepeat_code
mova,001d;lowlevel2.0ms(227cycle)
mova_sR13,a;[(4*55)+5]*1=225
lead_code_06:
mova,53d
movm_acc,a
lead_code_07:
nop
sdzm_acc
jmplead_code_07
5 20 sdza_sR13
jmplead_code_06
clrwdt
nop2
;------------------------
;;客户码编译：
cusnec_code:
mova,002d
mova_sR13,a
moVa,oFFseta_customeR_1
moVm_mp0,a
custom_pRo:
mova,008d
mova_sR11,a;8databit
nop
custom_bit_bl
clrpn_iR
mova,20d
custom_bit_bl_1:
sdzm_acc
jmpcustom_bit_bl_1
clrwdt
6 20 nop
custom_bit_bh:
setpn_iR;0.56ms->63cycle;[(3*20)+2]=62;00.56ms->63cycle;11.68ms->191cycle
nop
rrm_indiRect1;
mova,18d
szm_indiRect1.7;
mova,61d
custom_bit_bh_0:
sdzm_acc
jmpcustom_bit_bh_0
clrwdt
sdza_sR11
jmpcustom_bit_bl
incm_mp0
sdza_sR13
jmpcustom_pRo
;;---------------------------
;;数据码编译：
data6nec_bit:
7 20 mova,002d
mova_sR13,a
data_pRo:
mova,008d
mova_sR11,a
nop
data_bit_bl:
clrpn_iR
mova,20d
data_bit_bl_1:
sdzm_acc
jmpdata_bit_bl_1
clrwdt
nop
data_bit_bh:
setpn_iR
nop
rra_Rem_code;
mova,18d
sza_Rem_code.7
mova,61d
8 20 data_bit_bh_0:;8databit;0.53ms->60cycle;[(3*19)+2]=59;00.53ms->60cycle;11.58ms->179cycle
sdzm_acc
jmpdata_bit_bh_0
clr
wdt
sdza_sR11
jmpdata_bit_bl
cpla_Rem_code
sdza_sR13
jmpdata_pRo
;0.53ms->60cycle
clrpn_iR;[(3*19)+2]=59
mova,20d
data_bit_bl_2:
sdzm_acc
jmpdata_bit_bl_2
clrwdt
setpn_iR
;---Framedelaytimeprocess---
mova,004d;Repetitiontime=108ms(12286cycle)mova_sR13
9 20 ,a;scankey=2471cycle
;sendcode=7349cycle
Fdtp_loop_01:;12286-2471-7349=2466
mova,152d;[(4*152)+5]*4=2452
movm_acc,a
Fdtp_loop_02:
nop
sdzm_acc
jmpFdtp_loop_02
clrwdt
sdza_sR13
jmpFdtp_loop_01
mova,3d
movm_acc,a
Fdtp_loop_03:
sdzm_acc
jmpFdtp_loop_03
nop2
ret
;--------------------------------
;;重复码编译：
Repeat_code:
10 20 ;0.56ms->63cycle
clrpn_iR;[(3*20)+2]=62
mova,19d
Rep_bit_bl_3:
sdzm_acc
jmpRep_bit_bl_3
clrwdt
setpn_iR
;---RepeatFramedelaytimeprocess---
mova,016d
mova_sR13,a
Rep_delay_02:
mova,130d
movm_acc,a
Rep_delay_03:
nop
sdzm_acc
jmpRep_delay_03
clrwdt
sdza_sR13
jmpRep_delay_02
mova,07d