Write Onewire data toa I2C memory / read ASCI

[Eugeniu]

Ok, you can't display a byte variable directly because a byte (if larger than 9) contains more than one numeric character right?

I must to read from memory , for example :for 25,55 (grade C ) I must to read from memory ...50 53 44 53 53 , or except " , " 50 53 53 53

[skimask]

I must to read from memory , for example :for 25,55 (grade C ) I must to read from memory ...50 53 44 53 53 , or except " , " 50 53 53 53

Yes, I understand, I think... A bit of a language disconnect here I think Not that your English is bad, it's not bad at all, it's far far better than my ______(insert language here)...

Those sequences of numbers above...What are they? Is that how you have it stored? Or is that how you want to display it...
What is 25,55? Is it 25.55? Or is it 25, then 55, and so on (I realize in Europe and other parts of the world the comma ( , ) is used in much the same way that folks in the States use the decimal point)...

[Eugeniu]

Yes, I understand, I think... A bit of a language disconnect here I think Not that your English is bad, it's not bad at all, it's far far better than my ______(insert language here)...

Those sequences of numbers above...What are they? Is that how you have it stored?

They are in ACII code . I attach it .



(I realize in Europe and other parts of the world the comma ( , ) is used in much the same way that folks in the States use the decimal point)...

Is not impportant , is a separration sign between 25(integer) and 55(2 decimals)

[inse]

Hi Eugeniu,

as I have already explained in my first post:
use the DIG modifier to separate the single digits of your calculated temperature.
Then simply add 48 to each digit and you will get the ASCII code.

If temperature is 2555 for 25.55°C
n0 = (temperature dig 0) + 48

n0 is 48+5 = 53 = ASCII "5"
...

Regards,

Ingo

[Eugeniu]

Hi Eugeniu,

as I have already explained in my first post:
use the DIG modifier to separate the single digits of your calculated temperature.
Then simply add 48 to each digit and you will get the ASCII code.

If temperature is 2555 for 25.55°C
n0 = (temperature dig 0) + 48

n0 is 48+5 = 53 = ASCII "5"
...

Regards,

Ingo

Dear Ingo ,

I work by many days to do this and in my mind is a black hole. Please if you wish to help me , write a example ,

i2cwrite I2CDAT, I2CCLK, $A0, adr,[TELL ME WHAT i MUST TO WRITE HERE ]

I think that you now formula for temperature measurement with Onewire sensor ( one from others ) :
" temperature = (((temperature >> 1) * 100) - 25) + (((count_per_c - count_remain) * 100) / count_per_c) "

If I will write :

LCDOUT $FE, $C0, DEC TEMPERATURE
I'll be reading 2555

For LCDOUT and to see a comma , I use this formula :
lcdout "temp= " , dec temperature/2 ,"," , dec2 100- (100/16)*(count_remain)," gr.C"

, but ....If I write in EEPROM :

i2cwrite I2CDAT, I2CCLK, $A0, adr,[temperature]

When I will read it with my FORMULA :

i2cread I2CDAT , I2CCLK , $A0,J,[caracter]
in " caracter "will can be read , time to time , a single sign / not a cipher

[inse]

Hi Eugeniu,

your program is a little bit hard to read without knowing Romanian (right?).

If you want to store the temperature value in single ASCII characters, something like this might work:

i2cwrite I2CDAT, I2CCLK, $A0, adr,[(temperature dig 0= + 48, (temperature dig 1) + 48, (temperature dig 2) + 48, (temperature dig 3) +48]

Add the comma where you please or add it after reading back the value.

Correct me if I am talking bull****...

Regards,
Ingo

[Eugeniu]

Hi Eugeniu,

your program is a little bit hard to read without knowing Romanian (right?).

If you want to store the temperature value in single ASCII characters, something like this might work:

i2cwrite I2CDAT, I2CCLK, $A0, adr,[(temperature dig 0= + 48, (temperature dig 1) + 48, (temperature dig 2) + 48, (temperature dig 3) +48]

Add the comma where you please or add it after reading back the value.

Correct me if I am talking bull****...

Regards,
Ingo

Uffff, not work . I see or 88888888 , or 44444444 or 77777777 .......
I'll try to write every DIG , separate . I'll tell you tomorow if work .

Thank you very much ! Good night !

[skimask]

LCDOUT $FE, $C0, DEC TEMPERATURE
I'll be reading 2555

If that's the only thing you are getting out of the temp sensor, then I'm thinking it probably meaning that your connection or your sensor probably isn't working because it's returning a value that's always max'd out for a byte variable...
Put the sensor in some ice water and see if the reading changes...
Get the core working first, then start adding things. You're not even sure if the sensor part is working in the first place!

, but ....If I write in EEPROM :
i2cwrite I2CDAT, I2CCLK, $A0, adr,[temperature]
When I will read it with my FORMULA :
i2cread I2CDAT , I2CCLK , $A0,J,[caracter]
in " caracter "will can be read , time to time , a single sign / not a cipher

Each one of these statements might only be WRITE'ing (or READ'ing) a BYTE, not a WORD. Not sure what the rest of your code says...

[aratti]

You wrote:

"LCDOUT $FE, $C0, DEC TEMPERATURE
I'll be reading 2555 "

Now:

ByteInteger = TEMPERATURE/100

ByteDecimal = TEMPERATURE-(ByteInteger*100)

LCDOUT $FE, $C0, DEC ByteInteger,",",ByteDecimal

You will see on your display 25,55.

You don't need to store the comma (separator) but you will store only ByteInteger and ByteDecimal in a location that can be recalled to read back the values. Than after the reading you will add the separator as above.

Al.