Multi-digit word variable to string

[Ioannis]

OK, I see.

So, if you want to move the trackbar to position $28 you will use

HserOut [$01,$05,$00,$00,$28,$2C]

and the slider will goto position $28.

But I guess you have to set beforehand the two ends of the trackbar? I mean the zero can be 100 and the maximum position 200, or whatever.

Can you try and see if you can move the trackbar just by sending straight in values? and the CRC computed by hand.

Then you may do more complicated things.

Ioannis

[astanapane]

in my case i do not use the trackbar, but the LED digits as shown below.



In the software 4D SYstems they have, you can set manually a number for example 167, and will show you the command as shown in the SET DIGIT VALUE:



I have tried to give manually a constant number and it worked!

what i did is:

i set a new var mTEMP ' for manually hex number and
a new var mTEMPIR ' for manually hex number as well.

In our case the number 167 for:

mTEMP = $00
mTEMPIR = $a7

then i did the CS calculation and return to the HSEROUT command.

IRCS=0
IRCS= $01^$0F^$00^mTEMP
IRCS = IRCS ^ mTEMPIR

I placed it with:

HSEROUT [$01,$0F,$00,mTEMP,mTEMPIR,IRCS)

then i got the right result on the display.

The problem is that when i use the variables i cannot get the right values.

[richard]

i assume the real question in this jumble is how do i sent a word var as a binary number msb first using hserout

Temp var word
Temp=167


HSEROUT [$01,$0F,$00,Temp.highbyte,Temp.lowbyte,IRCS)

[astanapane]

Richard!!!!

it really worked!!!

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'                         VAR for IR to LCD          '
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
IRCS         var byte       ' this is the checksum for the IR required in external display command
TEMP         var word       ' this is the word variable for TEMP 
temperature  var word       ' for result and output to lcd 
TEMPIR       var word       ' set a variable tempir 
Remainder    var word       ' Get the remainder = tempir//50

'------------------------------------------------------------------------------*
'                    Measure IR object temp sent to uLCD                          *
'------------------------------------------------------------------------------*
object:

reg    = $07             ' based on the datasheet $07 is the object's temp
addr   = %10110100       ' $B4  binary value: %10110100
i2cwrite SDA, scl, addr  ' send write command, shift the address B4, 8 bits where LSB is W = 0
i2cwrite sda, scl, reg   ' register is $07

addr   = %10110101       ' $B5  Binary value: %10110101
i2cwrite sda, scl, addr  ' sends read command, shift the address B5, 8 bits where LSB is R = 1, clock idles low
i2cread SDA, SCL,addr,reg,[temp.lowbyte,temp.highbyte] ' reg = $07

tempir = (temp.highbyte << 8) + temp.lowbyte

temperature  = tempir/50         ' based on the manual we need to divide by 50 or 0.02
temperature  = temperature - 273 ' subtract 273 for Degree in C,actually is 273,15
remainder    = (tempir*2)//100   ' multiply x 2 and get the remainder //100

pause 100
gosub display
return

'------------------------------------------------------------------------------*
'                    IR  Display 1 the parameters                              *
'------------------------------------------------------------------------------*
display: ' IR TEMP 
hserout2 [$73,$00,$02,$12,$00,$ff,"IR TEMP:",00]
Hserin2  timeout,error,[wait(6)]
hserout2 [$73,$08,$02,$12,$F8,$00,dec2 temperature,".",dec2 remainder,"*C",00] 'this one works on display 1 which doesnt require CS 
Hserin2  timeout,error,[wait(6)]
 

gosub checksum2    
HSEROUT [$01,$0F,$00,temperature.highbyte,temperature.lowbyte,IRCS)   ' this one works.
Hserin  timeout,error,[wait(6)]
return

'------------------------------------------------------------------------------|
'                               CHECKSUM IR                                    |
'------------------------------------------------------------------------------|
checksum2:
IRCS = 0
IRCS = $01 ^ $0F ^ $00 ^ temperature
'IRCS = IRCS ^ remainder ' commended this as i need to figure out how to import it in the HSEROUT command.
return

Now i'm trying to figure out how to add the remainder in the command.

[richard]

Now i'm trying to figure out how to add the remainder in the command.

i hope this is not a medical diagnostic device
your temperature calculation is not accurate and the remainder calculation is mathematically incorrect

temperature  = tempir/50         ' based on the manual we need to divide by 50 or 0.02
temperature  = temperature - 273 ' subtract 273 for Degree in C,actually is 273,15

yields the temp in deg C to about 1 deg of resolution with an error of +- 1 degree

remainder    = (tempir*2)//100   ' multiply x 2 and get the remainder //100

calculated the 100 modulus of the temp in deg kelvin

adding them together is nonsense , trying to display a two decimal point result is from any of these results is just not right

wtf tempir = (temp.highbyte << 8) + temp.lowbyte ;just Nooooo! its the hardest most convoluted way i have ever encountered to go 
tempir = temp which serves no purpose anyway




don't like this either, it pisses away too much resolution hence its not particularly accurate 
temperature  = tempir/50         ' based on the manual we need to divide by 50 or 0.02
temperature  = temperature - 273 ' subtract 273 for Degree in C,actually is 273,15
remainder    = (tempir*2)//100   ' multiply x 2 and get the remainder //100


;this is good  although it could be even more accurate [temperature  = temp*2  - 27315 ; temp x 2 - 273.15*100 ] >==>temperature*100] if the raw value won't exceed 32768 


temperature  = (temp  - 13657)<<1  ; (temp-[273.15*50]) x 2   <==> temperature*100; is good




i make the assumption temperature * 100 is the value required by the slider display


tempir and remainder are not needed

display like this

'------------------------------------------------------------------------------*'                    IR  Display 1 the parameters                              *
'------------------------------------------------------------------------------*
display: ' IR TEMP 
hserout2 [$73,$00,$02,$12,$00,$ff,"IR TEMP:",00]
Hserin2  timeout,error,[wait(6)]
hserout2 [$73,$08,$02,$12,$F8,$00,dec2 temperature/100,".",dec2 temperature//100,"*C",00] 
Hserin2  timeout,error,[wait(6)]
 


gosub checksum2    
hserout [$01,$0F,$00,temperature.highbyte,temperature.lowbyte,IRCS]   
Hserin  timeout,error,[wait(6)]
return


'------------------------------------------------------------------------------|
'                               CHECKSUM IR                                    |
'------------------------------------------------------------------------------|
checksum2:
IRCS = 0
IRCS = $01 ^ $0F ^ $00 ^ temperature.highbyte ^ temperature.lowbyte 
return

then lets have a look at the i2c stuff , its not right either really


ps if negative temps are possible then additional code req

[astanapane]

Richard,

really thanks for your time.

I found this,if i remember correctly somewhere related to this specific sensor.

tempir = (temp.highbyte << 8) + temp.lowbyte

Then in the equation i have added the following

temperature  = tempir/50         ' based on the manual we need to divide by 50 or 0.02
temperature  = temperature - 273 ' subtract 273 for Degree in C,actually is 273,15

Your way is much more efficient and works just as expected. Im very happy.

Now what is wrong with the I2C command?

[richard]

I found this,if i remember correctly somewhere related to this specific sensor.


Code:
tempir = (temp.highbyte << 8) + temp.lowbyte

maybe but in conjunction with
i2cread SDA, SCL,addr,reg,[temp.lowbyte,temp.highbyte] ' reg = $07

its not useful in any way

Now what is wrong with the I2C command?

all this achieves is exactly nothing

reg    = $07             ' based on the datasheet $07 is the object's temp


grave doubts about all of this  it looks like some mishmash of a C code method where no read/write register command exists as it does in pbp 
addr   = %10110100       ' $B4  binary value: %10110100
i2cwrite SDA, scl, addr  ' send write command, shift the address B4, 8 bits where LSB is W = 0
i2cwrite sda, scl, reg   ' register is $07


i2cwrite sda, scl, addr,reg, [some data of some sort]  ' register is $07 ;would be the normal way if you had any data to write 


totally bogus in pbp bit 0 should always be 0
addr   = %10110101       ' $B5  Binary value: %10110101


a form of torture to i2c chips with an incomplete transaction
i2cwrite sda, scl, addr  ' sends read command, shift the address B5, 8 bits where LSB is R = 1, clock idles low

all that's needed
reg = $07
addr = %10110100
i2cread SDA, SCL,addr,reg,[temp.lowbyte,temp.highbyte] ' reg = $07 ;would be the normal pbp way

[Ioannis]

Richard,

Then in the equation i have added the following

temperature  = tempir/50         ' based on the manual we need to divide by 50 or 0.02
temperature  = temperature - 273 ' subtract 273 for Degree in C,actually is 273,15

Well, if that compiler could do floating, maybe it could be used. But in PBP integer math? I do not think so. You need what Richard did as a workaround.

Ioannis