Help With LED Driver

i have been working ti's tlc59116f led driver chips. here datasheet... http://www.ti.com/lit/ds/symlink/tlc59116f.pdf. have been trying interface arduino mega (i2c) no luck far. using code found here driving chip... http://www.arduino.cc/cgi-bin/yabb2/yabb.pl?num=1295346037. have chip hooked +5v.

my main issue have no way know if chip receiving i2c communication. have read through code , datasheet , seems line up. have suggestions?

thanks,

patrick

(i have attached code)

code reproduced below:

code: [select]

#include <wire.h>

char allmoduleaddress = 104;
char module1address = 96;

void setup()
{
  serial.begin(9600);
  serial.println("serial initialized");
  wire.begin();
  serial.println("wire initialized master");
  initmodule(allmoduleaddress);
  serial.println("initmodules completed");
}

void loop()
{
  setglobalbrightness(module1address,5);
//  serial.println("brightness set");
}

// initialise outputs pwm , global dimming, switch off sleep mode
void initmodule(char address)
{
  wire.begintransmission(address);
  wire.write(0x80);
  wire.write(0x01);
  (char i=0; i<17; i++) {
    wire.write(byte(0x00));
  }
  (char i=0; i<6; i++) {
    wire.write(0xff);
  }
  wire.endtransmission();
}

// set global brightness dim lit leds
void setglobalbrightness(char address, char brightness) {
  wire.begintransmission(address);
  wire.write(0x12);
  wire.write(brightness);
  wire.endtransmission();
}

// set brightness of 1 output
void setledbrightness(char address, char lednum, char brightness) {
  wire.begintransmission(address);
  wire.write(0x02 + lednum);
  wire.write(brightness);
  wire.endtransmission();
}

// set brightness 3 outputs @ once (for rgb leds)
void setgroupbrightness(char address, char groupnum, char brightness_r, char brightness_g, char brightness_b) {
  wire.begintransmission(address);
  wire.write(0xa2 + (3*groupnum));
  wire.write(brightness_r);
  wire.write(brightness_g);
  wire.write(brightness_b);
  wire.endtransmission();
}

have got right i2c address? please run i2c scanner on page:

http://www.gammon.com.au/i2c

just confirm responding expected address (or @ all).

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