pt2258+16f877 how can i use for 5.1 volume control ?

[whyliving]

hi , everyone. i am noobie in there. im working learn pic.

i wanna build 5.1 ch volume control with pic16f877 and pt2258.and next time lcd and smps control , ir control ....music system...

pt series chip is using i2c protocol.

this pt 2258 datasheet:

http://www.datasheetcatalog.net/datasheets_pdf/P/T/2/2/PT2258.shtml



i am training something. this is my code:

Config XT_OSC , WDT_OFF , PWRTE_ON , BODEN_OFF , LVP_OFF , WRTE_ON , CP_OFF , DEBUG_OFF

Device 16F877
XTAL 4
ADCON1=7
Symbol SCL=PORTC.3
Symbol SDA=PORTC.4


Declare I2C_SLOW_BUS On
pause 100
GoSub RST
ANA:
If PORTA.0=1 Then COK
If PORTA.1=1 Then AZ
If PORTA.2=1 Then SUS
If PORTA.3=1 Then GoSub RST
GoTo ANA


COK:
High PORTB.7
High SCL
High SDA
Low SDA
Low SCL

i2cout SDA,SCL ,$88,0 ,[%11010100,%11100010]

High SCL
Low SDA
High SDA
Low SCL
PAUSE 100
Low PORTB.7
GoTo ANA

AZ:
High PORTB.6
High SCL
High SDA
Low SDA
Low SCL

i2cout SDA,SCL ,$88,0 ,[%11010001,%11100001]

High SCL
Low SDA
High SDA
Low SCL
PAUSE 100
Low PORTB.6
GoTo ANA

SUS:
High PORTB.5
High SCL
High SDA
Low SDA
Low SCL

i2cout SDA,SCL ,$88,0 ,[%11111001]

High SCL
Low SDA
High SDA
Low SCL
PAUSE 100
Low PORTB.5
GoTo ANA

RST:
High PORTB.4
High SCL
High SDA
Low SDA
Low SCL

i2cout SDA,SCL ,$88,0 ,[%11000000]

High SCL
Low SDA
High SDA
Low SCL
PAUSE 100
Low PORTB.4

Return


i am write this code but not working.

where is my problem. can you help me?

are u have another example or project for 5.1 ch volume control.
thanks for all.

[Ioannis]

First of all your data sheet is chopped. The full version is here:

http://www.princeton.com.tw/webSite/downloadprocess/downloadfile.asp?mydownload=PT2257_4.pdf

Second, for a 5.1 you need at least 3 devices since you must control 6 channels.

Ioannis