port_set.asm

来自「VCP201_CODE is a FPGA source code.」· 汇编 代码 · 共 46 行

RX_PORT_EN	BSF	STATUS,RP0
		MOVLW	0xFF
		MOVWF	TRISD
		BCF	STATUS,RP0

		RETURN

;RX_PORT_DIS	BSF	STATUS,RP0
;		MOVLW	0xFF
;		MOVWF	TRISD
;		BCF	STATUS,RP0

;		RETURN

TX_PORT_EN	MOVLW	0x00
		MOVWF	PORTD
					
;		MOVLW	B'00001100'	;ENABLE SD1,SD2 OUTPUT
;		MOVWF	PORTB

; NORMAL PORTC PIN STATE
; DR , SRD , SWR , END_SEND , SD1_OUT_EN , HRESET , M2_IN_CNT , M1_IN_CNT
; 0     0     0     0            1            0        0           0
; END_SEND , SWR , SRD , SD1_OUT_EN , SD2_OUT_EN , DR , ST_S_DET
;    0	     0     0        1            1        0       0    

		BSF	STATUS,RP0
		MOVLW	0x00
		MOVWF	TRISD
		BCF	STATUS,RP0	

		RETURN

TX_PORT_DIS	
		BCF	SD1_OUT_EN
		BSF	STATUS,RP0
		MOVLW	0xFF
		MOVWF	TRISD
		BCF	STATUS,RP0

;		CLRF	PORTC		;DISABLE SD1,SD2 OUTPUT
		
		RETURN