; //LED屏驱动
;
; #pragma src (LED_ShiftRegistControl.a51) small
;
;
; #include "..incincludes.h"
;
; extern uchar ucColDataBuff_High[16];
; extern uchar ucColDataBuff_Low[16];
;
;
; sbit c_Col_SData = P1^5;
; sbit c_Col_SClk = P1^7;
; sbit c_Col_SOut_High = P1^0;
; sbit c_Col_SOut_Low = P1^1;
;
; sbit c_Col_SOE = P1^2;
;
; /*
; void ShT_LEDBoard_ColShiftOut(void)
; {
; uchar ucByteCount;
; uchar ucBitCount;
; uchar ucTemp;
;
; c_Col_SOE = 0;
; c_Col_SClk = 0;
; c_Col_SOut_High = 0;
;
; for(ucByteCount=0; ucByteCount<16; ucByteCount++)
; {
; ucTemp = ucColDataBuff_High[ucByteCount];
;
; for(ucBitCount=0; ucBitCount<8; ucBitCount++)
; {
; if(ucTemp & 0x80)
; {
; c_Col_SData = 0; //When Shift Register Latch Out Value is Zero,the Led is Light
; }
; else
; {
; c_Col_SData = 1;
; }
;
; c_Col_SClk = 1;
; ucTemp <<= 1;
; c_Col_SClk = 0;
; }
; }
;
; c_Col_SOut_High = 1;
; c_Col_SOut_High = 0;
;
;
; for(ucByteCount=0; ucByteCount<16; ucByteCount++)
; {
; ucTemp = ucColDataBuff_Low[ucByteCount];
;
; for(ucBitCount=0; ucBitCount<8; ucBitCount++)
; {
; if(ucTemp & 0x80)
; {
; c_Col_SData = 0; //When Shift Register Latch Out Value is Zero,the Led is Light
; }
; else
; {
; c_Col_SData = 1;
; }
;
; c_Col_SClk = 1;
; ucTemp <<= 1;
; c_Col_SClk = 0;
; }
; }
; c_Col_SOut_Low = 1;
; c_Col_SOut_Low = 0;
;
; c_Col_SOE = 0;
; }
; */
;
; void ShT_LEDBoard_ColShiftOut(void)
RSEG ?PR?ShT_LEDBoard_ColShiftOut?LEDSHIFTREGISTERCONTROL
ShT_LEDBoard_ColShiftOut:
USING 0
; SOURCE LINE # 82
; {
; SOURCE LINE # 83
; uchar ucByteCount;
; uchar ucBitCount;
; uchar ucTemp;
;
;
Clr Col_SOE ;
; c_Col_SClk = 0;
Clr Col_SClk
; c_Col_SOut_High = 0;
Clr Col_SOut_High
;
; for(ucByteCount=0; ucByteCount<16; ucByteCount++)
MOV A,#LOW (ucColDataBuff_High)
MOV R0,A
Mov R2,#16
ShiftOutByte_HighScreen:
Mov R3,#8
Mov A,@R0
CPL A
ShiftOutBit_HighScreen:
Rlc A
Mov Col_SData,c
SetB Col_SClk
Clr Col_SClk
DJNZ R3,ShiftOutBit_HighScreen
Inc R0
DJNZ R2,ShiftOutByte_HighScreen
SetB Col_SOut_High
Clr Col_Sout_High
MOV A,#LOW (ucColDataBuff_Low)
MOV R0,A
Mov R2,#16
ShiftOutByte_LowScreen:
Mov R3,#8
Mov A,@R0
CPL A
ShiftOutBit_LowScreen:
Rlc A
Mov Col_SData,c
SetB Col_SClk
Clr Col_SClk
DJNZ R3,ShiftOutBit_LowScreen
Inc R0
DJNZ R2,ShiftOutByte_LowScreen
SetB Col_SOut_Low
Clr Col_Sout_Low
Clr Col_SOE
; {
; ucTemp = ucColDataBuff_High[ucByteCount];
;
; for(ucBitCount=0; ucBitCount<8; ucBitCount++)
; {
; if(ucTemp & 0x80)
; {
; c_Col_SData = 0; //When Shift Register Latch Out Value is Zero,the Led is Light
; }
; else
; {
; c_Col_SData = 1;
; }
;
; c_Col_SClk = 1;
; ucTemp <<= 1;
; c_Col_SClk = 0;
; }
; }
;
; c_Col_SOut_High = 1;
; c_Col_SOut_High = 0;
;
;
; for(ucByteCount=0; ucByteCount<16; ucByteCount++)
; {
; ucTemp = ucColDataBuff_Low[ucByteCount];
;
; for(ucBitCount=0; ucBitCount<8; ucBitCount++)
; {
; if(ucTemp & 0x80)
; {
; c_Col_SData = 0; //When Shift Register Latch Out Value is Zero,the Led is Light
; }
; else
; {
; c_Col_SData = 1;
; }
;
; c_Col_SClk = 1;
; ucTemp <<= 1;
; c_Col_SClk = 0;
; }
; }
; c_Col_SOut_Low = 1;
; c_Col_SOut_Low = 0;
;
; c_Col_SOE = 0;
; ucTemp = ucColDataBuff_High[ucByteCount];
; SOURCE LINE # 89
; MOV R7,ucByteCount?040
; MOV A,#LOW (ucColDataBuff_High);
; ADD A,R7
; MOV R0,A
; MOV A,@R0
; MOV R7,A
; MOV ucTemp?042,R7
;
; ucTemp = ucColDataBuff_Low[ucByteCount];
; SOURCE LINE # 91
; MOV R7,ucByteCount?040
; MOV A,#LOW (ucColDataBuff_Low)
; ADD A,R7
; MOV R0,A
; MOV A,@R0
; MOV R7,A
; MOV ucTemp?042,R7
; }
; SOURCE LINE # 92
RET
; END OF ShT_LEDBoard_ColShiftOut
END |
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