PICBASIC-HOUSE RS422/RS485 RS232 RS422 RS485 RS422/ RS232 RS232 P
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PICBASIC-HOUSE RS422/RS485
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LTC485
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RS232 RS422/485 RS485 (Multi Point)
HOST
DEL1 "AB"
DEL2 "AC"
DEL3 "AD"
PICBASIC-HOUSE RS422/RS485
(Device) (PICBASIC SERIN WAIT
LC-485
200Ma :1.2Km 2.5Mbps :RTS :DTE/DCE RS232C:DET/DLE
PICBASIC RX(Recive), TX(Transmit). (HIGH PICBASIC 422/485 422/485 RS232C RS232C 422/ LC-485.
(ID)
PICBASIC-HOUSE
PICBASIC-HOUSE "BLLLLL" PICBASE-HOUSE Received Data LLLLL" Received Data LLLLL"
PICBASIC-HOUSE RS422/RS485
<PICBASIC-HOUSE-PC 485>
CONST CONST CONST CONST CONST CONST '74HC574 CONTROL CONST CONST CONST CONST 'MC14489 CONTROL CONST CONST LCDINIT CSROFF RS-422/485(0:RECEIVE 1:SEND) (PORT_LOW, 1:SEL, 0:UN_SEL) ||+-' (PORT_HIGH, 1:SEL, 0:UN_SEL) |||+-' ||||+-' (0:WRITE) (0:A, 1:B) CLOCK DATA_IN SRCLK_IN RCLK_IN SRLOAD ENABLE BF(5) BYTE BYTE CONT TEMP OUT_CN SRCLK SDATA BUS_CK BYTE BYTE
CONT_CK
|||||+-' D/A'S (0:SEL, 1:UN_SEL) ||||||+-' D/A'S (0:SEL, 1:UN_SEL) |||||||+-' D/A'S (0:SEL, 1:UN_SEL) CONT &B00011111 LOCATE PRINT Ready Now" PICBASIC-HOUSE
GOSUB SEROUT TX_READY 0,30,0,0,[10,13,10,13, Ready Now" ,10,13] Ready Now" ,10,13 13,10 GOSUB MAIN: SERIN 1,30,0,50000,MAIN,[WAIT( ),BF(0) '"B" MAIN LOCATE PRINT BF(J) NEXT GOSUB TX_READY SEROUT 0,30,0,0,[ GOSUB RX_READY GOSUB TX_READY SEROUT 0,30,0,100,[BF(J)] GOSUB RX_READY DELAY NEXT GOSUB TX_READY SEROUT 0,30,0,0,[10,13,10,13] GOSUB RX_READY GOSUB RX_READY GOTO MAIN '485 TX_READY: TEMP CONT &B10000000 CONT_CK SHIFTOUT SRCLK,SDATA,1,TEMP PULSE RETURN '485 RX_READY: TEMP CONT &B01111111 CONT_CK SHIFTOUT SRCLK,SDATA,1,TEMP PULSE RETURN Received Data RX_READY 'PIC
:(02)711-2592
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