two simple questions

[alejandro1957]

I am migrating the code from mikrobasic a gcbasic.
two simple questions:
1) as the keyword to use the mathematical function MOD?
2) how states Lowbyte and Highbyte of a word?

in mikrobasic declare  High (word) or Low (word).

[kent_twt4]

1.  Use the % for MOD

Dec2HexString = test / 16
convert2Hex
Dec2HexString = test % 16 'Modulo or remainder
convert2Hex

2.  To use a word variable it must be declared, so use" dim LargeVar as Word ".

If one wants to freely manipulate the high and low bytes of a word variable, look at this discussion:  https://sourceforge.net/forum/forum.php?thread_id=3077406&forum_id=579125

[alejandro1957]

thanks.
but now when the code is fill out this error:
Error: GCASM: Value out of range: Least significant bits used

Part of this code is guilty:
Escribe_Eeprom(0,(vNTC / 256),(vNTC % 256))  

SUB Escribe_Eeprom(Address as word,wByte1 as byte,wByte2 as byte)
DIM wAddress As Word Alias Highbyte,Lowbyte
wAddress=Address
Start
TxI2C(160)                                                           
TxI2C(Highbyte)                                                      
TxI2C(Lowbyte)                                                        
TxI2C(wByte1)                                                         
TxI2C(Highbyte+1)                                                     
TxI2C(Lowbyte+1)                                                      
TxI2C(wByte2)                                                                                                                  
Stop                                                                  
WAIT 10 ms                                                      
END SUB

[Nobody/Anonymous]

Not 100% sure, and i don't know if this is the problem, but i think subroutines should be called this way (no brackets):

Escribe_Eeprom 0, (vNTC / 256), (vNTC % 256)

[Nobody/Anonymous]

is vNTC dim as word?  Here is sub that should send word data to the eeprom:

sub Write16R16D(WriteID,Addr as word,I2Cdata as Word) #NR
  Start
  TxI2C(WriteID)  'Device ID write byte
  TxI2C(Addr_H)  'Send word address high byte
  TxI2C(Addr)  'Send word address low byte
  TxI2C(I2Cdata_H)  'Send out high data byte
  TxI2C(I2Cdata)  'Send out low data byte
  Stop
end sub

Kent

[alejandro1957]

I followed everything as I was told.
Always the same result.
thanks.

[alejandro1957]

this code now work

Escribe_Eeprom EE_Cont_Bat,vBateria

SUB Escribe_Eeprom(Address as word,Dato as word)

DIM wAddress As Word Alias Address_H,Address_L

DIM wDato As Word Alias Dato_H,Dato_L

wAddress=Address

wDato=Dato 

Start

TxI2C(160)                                                             'Envia el valor del comando de escritura

TxI2C(Address_H)                                                       'Envia el valor alto de la EEPROM

TxI2C(Address_L)                                                       'Envia el valor bajo de la EEPROM

TxI2C(Dato_H)                                                          'Envia el valor alto de la lectura

TxI2C(Address_H+1)                                                     'Envia el valor alto de la EEPROM

TxI2C(Address_L+1)                                                     'Envia el valor bajo de la EEPROM 

TxI2C(Dato_L)                                                          'Envia el valor bajo de la lectura                                                       

Stop                                                                   'Termina la transmiciòn

WAIT 10 ms                                                             'Espera para asegurar la escritura Eeprom

END SUB

[alejandro1957]

thanks,Kent.
If you for example to a transmission code manchester???

[kent_twt4]

Negative.  I am sure there are examples on the web like: http://www.winpicprog.co.uk/pic_tutorial12.htm  or http://www.embedded.com/design/networking/206500265?pgno=2

[alejandro1957]

thanks.
we will work it.

[Nobody/Anonymous]

Mod is the rermaider of a devide
How big a number are you deviding
and what are you placing the number into
A word?
often its very small number any way

Lex