請先看『使用說明』

From LEXWiKi

Revision as of 17:59, 30 May 2011

The Sample code source you can download from

Source file: DPC_v2.7L_src.tar.gz

Binary file: DPC_v2.7L_bin.tar.gz

How to compile source code

1. Compile source code with Code::Blocks

Download and install the Code::Block with command "apt-get install codeblocks"

Open an exist project(DPC.cbp) in Code::Blocks, click the compile button

2. Compile source code with "make"

1. cd DPC_v2.7L_src

1. ./configure

1. make

1. src/dpc // execute the binary file

How to use this Demo Application

1. execute the ap, it will showed in system bar

2. Content explanation

Panel Type : Select panel what you try to adjust

Duty cycle : Brightness control, from 10 to 100

Select Area : After pressed this button, show another dialog which for you can select an area to light on panel

Panel off : light off the panel, (if you try to light on panel again, just click selected area or hotkey)

Hotkey Setting: Setting hotkey to light on panel, press the "OK" button after setting to completed

Install : Set the system to autorun this application when booting

Uninstall : Remove autorun this application when booting.

Exit : Exit the program.

Sample Code Introduction

Define SMBus register

 typedef unsigned char  BYTE;
 typedef unsigned short WORD;
 typedef unsigned long  DWORD;
 #define m_SMBusMapIoAddr 0x0500
 //----------------------------------------------------------------------------------
 #define HST_STS	0x00	// SMBus Host Status        Register Offset
 #define HST_CNT	0x02	// SMBus Host Contorl       Register Offset
 #define HST_CMD	0x03	// SMBus Host Command 	    Register Offset
 #define XMIT_SLVA	0x04	// SMBus Host Address	    Register Offset
 #define HST_D0	0x05	// SMBus Host Data0         Register Offset
 //----------------------------------------------------------------------------------
 #define SADD	        0xb0
 #define PWMFeq	0x01
 #define PWMDuty	0x02

SMBusIoWrite

 void SMBusIoWrite(BYTE byteOffset,BYTE byteData)
 {
     outb( byteData , m_SMBusMapIoAddr + byteOffset);
 }

SMBusIoRead

 BYTE SMBusIoRead(BYTE byteOffset)
 {
     DWORD dwAddrVal;
     dwAddrVal = inb(m_SMBusMapIoAddr + byteOffset);
     return (BYTE)(dwAddrVal & 0x0FF);
 }

SetDutyCycle

 void SetDutyCycle(gint iDutyValue)
 {
     DWORD dwPortVal;
     SMBusIoWrite(HST_STS, 0xFE);
     SMBusIoWrite(XMIT_SLVA, SADD);
     SMBusIoWrite(HST_CMD, PWMDuty);
     dwPortVal = SMBusIoRead (HST_STS);
     dwPortVal = dwPortVal & 0x01;
     SMBusIoWrite(HST_D0, iDutyValue);
     SMBusIoWrite(HST_CNT, 0x48);
 }

SetFrequency

 void SetFrequency(gint iFrequency)
 {
     DWORD dwPortVal;
     SMBusIoWrite(HST_STS, 0xFE);
     SMBusIoWrite(XMIT_SLVA, SADD);
     SMBusIoWrite(HST_CMD, PWMFeq);
     dwPortVal = SMBusIoRead (HST_STS);
     dwPortVal = dwPortVal & 0x01;
     SMBusIoWrite(HST_D0, iFrequency);
     SMBusIoWrite(HST_CNT, 0x48);
 }