Urgent help needed, thanks!

[apricot_star]

Hi all,

Anyone know how to change "0A" on LCD to "10"?
Becos the LCD only recognise ASCII character so in order for me to display number more than 09, what should i do?
I want it to display from 09 then 10 not 0A, in other words the number should be able to display as per normal when it is exceeding 9.(ex 09,10, 11,12...etc not 09,0A,0B,0C...)

Thanks!

Regards

 

[Papabravo]

From a character 'c' you convert it to a string as follows

dh = c / 100
r1 = c % 100
dt = r1 / 10
du = r1 % 10

dh is the hundreds digit, dt is the tens digit, and du is the units digit. To convert the digits to characters add the value of the character '0'.

Let's do an example

c = 240
dh = c / 100 = 2
r1 = c % 100 = 40
dt = 40 / 10 = 4
du = 40 % 10 = 0

dh + '0' = 0x02 + 0x30 = 0x32
dt + '0' = 0x04 + 0x30 = 0x34
du + '0' = 0x00 + 0x30 = 0x30

 

[Pommie]

You don't state which language but, assuming it's asm, I use this

PutDecimal	clrf	Decimal100	;clear hundreths
Count100s	incf	Decimal100,F	;will inc once too many times
		addlw	0x100-.100	;add-100 (sub 100)
		btfsc	STATUS,C	;gone negative?
		goto	Count100s	;no, keep counting
		addlw	.100		;add back 100
		clrf	Decimal10	;clear tens digit
Count10s	incf	Decimal10,F	;waii also inc once too many
		addlw	0x100-.10	;add-10 (sub 10)
		btfsc	STATUS,C	;gone negative?
		goto	Count10s	;no, keep counting
		movwf	Units		;keep units count -10
		movfw	Decimal100	;get hundredths
		addlw	"0"-1		;convert to ascii and correct for extra inc
		call	PutChar		;print it
		movfw	Decimal10	;same for
		addlw	"0"-1		;tens
		call	PutChar
		movfw	Units		;do units
		addlw	"0"+0ah		;conv to ascii and add back the -10
		goto	PutChar

Mike.

 

[apricot_star]

oh, i am using C language

 

[3v0]

Papabravo's msgs tells you what you need to know.

 

[apricot_star]

HI Mike, i am using C language.

 

[Pommie]

Use the method posted by Papabrave or lookup the function itoa().

Mike.

 

[apricot_star]

Binary to BCD conversion

Hi all,

Anyone know how to convert Binary to BCD conversion in PIc 18f262x using c language?

 

[Pommie]

What size are your variables and what do you call BCD? An example would be nice. I.E 0b0110010 goes to 0x98.

Mike.

 

[Papabravo]

Hi all,

Anyone know how to convert Binary to BCD conversion in PIc 18f262x using c language?

I guess you didn't understand my answer. I'm sad for you.