Board model:Skyworth coocaa 8A13
Step 1 : In order to stop the main chip working (power supply,clock,restoration),the easiest way is crystal oscillator, ground the 2 pins of the crystal oscillator X0R2(beside the shielded wire extension cord) of the main chip;
Step 2 : Find a few key pin test points DO,CMD,CLK,GND,at least 4 lines,and the line should be better within 10cm.
Step 3 : EMMC uses the power supply of board by self,so one line less,just need to supply the 12V power to the board.
Step 4 : Supply the 12V power to the Liquid Crystal mainboard,open the software of the programmer,choose EMMC_AUTO_ISP and then click ”Read”.
The method of EMMC_AUTO to fly ISP line to write please refer to the EMMC offline writing method.
EMMC_AUTO_ISP flying line read-writing must stop the main chip working,then the efficiency of read-writing can be high.
The way includes : Stop the power supply,short sub the 2 pins of main chip crystal oscillator to the ground,supply the power to the reset pin to force to reset.
The easiest way is to short sub the 2 pins of main chip crystal oscillator to the ground,use the original power supply,the voltage of the VCCIO is the same as the EMMC power supply,fly 4 lines (CLK/CMD/D0/GND) to write.
- Note
- Manual Organization
- ⅠGeneral Description
- 1.1 What is RT809H?
- 1.2 Programmer Characteristic:
- 1.3 System Requirement
- 1.4 Programmer External Port Instruction
- 1.5 Programmer Packing
- Ⅱ Installing
- 2.1 Software download
- 2.2 Installing the Main Software
- 2.3 Manual Installing the drivers
- 2.4 Installing tool chain panel
- Ⅲ The Software Instruction
- 3.1 Software Interface Instruction
- 3.2 The Toolchain
- Ⅳ Detailed Operation
- 4.1 24XX,25XX,93XX Series Chips’ Reading and Writing
- 4.1.1 93XX’s Reading and Writing
- 4.1.2 24XX,25XX’s Reading and Writing
- 4.2 PLCC Encapsulation Chip’s Reading and Writing
- 4.3 TSOP48 Encapsulation Chip’s Reading and Writing
- 4.4 EMMC’s Reading
- 4.5 Laptop EC Chip’s Reading and Writing
- 4.5.1 1:85XX Series EC Chip’s Reading and Writing
- 4.5.2 KB9012 Chip’s Reading and Writing
- 4.5.3 NPCE 288,388 Chip’s Reading and Writing
- Ⅴ ISP (on-line) Application Instruction
- 5.1 Checking Liquid Crystal Board Printing Message
- 5.2 LCD TV Mainboard Program’s Transcription
- 5.2.1 MST scheme
- 5.2.2 Burning Method
- 5.2.3 MTK Scheme Flashing Method
- 5.2.4 RTD Scheme
- 5.2.5 EMMC_ISP Reading and Writing Tutorial
- 5.2.6 On-line Reading IT85XX Series Laptop EC Chip
- Ⅵ Laptop EC Chip MEC16xx Read-Write
- Ⅶ Secure CRT Software Installation
- Ⅷ Common Problem Diagnosis
- 8.1 Installing the software and driver unsuccessfully
- 8.2 Programmer Unconnected with the Mainframe
- 8.3 The use of programmer selftest command,to check if there is problem itself
- 8.3.1 Selftest way 1:
- 8.3.2 Selftest way 2 :
- 8.4 The Method of Solving the Problem When reading 25XX,24XX,93XX
- 8.4.1 Handling Method
- 8.5 The Method to Solve the Problem of Off-line Read and Write EMMC
- 8.6 The Method to Deal with the LCD Mainboard Printing Information Messy Code
- Ⅸ Guarantee clause：
- Ⅹ Contact Information
- Self-testing