TIL 311

The TIL311 is a texas instruments 7 segment display that can be used in microcontroller projects.

Here is the data sheet

Used this convert binary to BCD

	; TIL311 test
	; Some starter code comes from Tom Hayes, Learning the Art of Electronics
	; https://learningtheartofelectronics.com/
	; Binary to BCD from https://www.tutorialspoint.com/binary-to-bcd-conversion-in-8051 (George John)
	; When single stepping in Silabs on the 8051F410, two TIL311 registers will count up from 0.


	$NOSYMBOLS ; keeps listing short..
	$INCLUDE (C:\MICRO\8051\RAISON\INC\c8051f410.inc)

	ORG 0 ; tells assembler the address at which to place this code

	SJMP STARTUP ; here code begins--with just a jump to start of
	; real program. ALL our programs will start thus
	ORG 80h ; ...and here the program starts

	STARTUP: acall USUAL_SETUP
	ACALL IO_SETUP

	CLR A
	MOV P2, A
	MOV R7, A

	COUNT: MOV A, R7
	INC A
	MOV R7, A
	ACALL CONVERT
	MOV P2, R3
	SJMP COUNT


	USUAL_SETUP: ; Disable the WDT.
	anl PCA0MD, #NOT(040h) ; Clear Watchdog Enable bit

	; Enable the Port I/O Crossbar

	mov XBR1, #40h ; Enable Crossbar

	ret
	IO_SETUP: orl P0MDOUT, #01h ; enable P0.0 as push-pull output
	RET

	CONVERT:
	MOV A, R7 ;Takethe data into Acc
	MOV B, #0Ah ;LoadB with AH = 10D
	DIV AB ;DivideA with B
	MOV R5, B ;Storethe remainder
	MOV B,#0Ah ;LoadB with AH = 10D
	DIV AB ;DivideA with B
	MOV R2, A ;Store the MS portion
	MOV A, B ;LoadB content to A
	SWAP A ;Swapthe nibbles
	ADD A,R5 ;Addstored remainder with A
	MOV R3,A
	RET

	END

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