Megawin MLink OCD8 User manual

OCD8_MLink

User Manual v1.2.0.1

This document information is the intellectual property of Megawin Technology Co., Ltd page1/12

OCD8_MLink

User Manual

OCD8_MLink

User Manual v1.2.0.1

This document information is the intellectual property of Megawin Technology Co., Ltd page2/12

Index

1. Introduction ............................................................................................................3

2. Install and Uninstall ................................................................................................4

3. Setting.....................................................................................................................5

4. Start Debug .............................................................................................................7

5. ICP8 Programmer....................................................................................................8

5.1. On-Line Mode Update.................................................................................................... 8

5.2. Off-Line Mode Update.................................................................................................. 10

5.3. Other............................................................................................................................. 11

6. Revision History ....................................................................................................12

OCD8_MLink

User Manual v1.2.0.1

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1. Introduction

OCD8_MLink is an ICE development kit used by megawin in Keil C IDE. It supports

8bit chips of the megawin 8051 series; this kit provides OCD (On-Chip-Debug)

real-time debugging function. Users only need to reserve 6 pins for megawin.

OCD-ICE development tool (MLink) is fine.

In addition, the megawin ICP8_Programmer software is also provided in the package,

which can perform program code, program hardware option and offline mode

functions through MLink.

megawin OCD-ICE development tool (MLink)

Users only need to reserve 6 pins such as CLK, SCL/SWCLK, VCC, SDA/SWDIO, GND

and RST to connect to MLink.

PS. The VCC pin of MLink does not provide power to the user's system board, the

user needs to provide the power by himself!

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2. Install and Uninstall

Execute "Setup.exe" in the package directory, and then press "Browse" to find the

directory of Keil C IDE (c:\Keil_v3 in the example in the figure, and then press "Install"

to install.

If the Keil C IDE directory has a package installed, you can click "Uninstall" to uninstall

it.

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3. Setting

After the installation is complete, open the Keil C IDE project and enter the project

options (Options for Target…)

Step 1. Set Device

On the Device page, select the Database as "megawin MLink Device Database", and

then you can see the megawin chip part-no supported by OCD8 MLink below; select

the part-no to be debugged.

PS. Due to the Keil IDE problem, when selecting the chip model, the parameters may

not be brought out; it is recommended to select another chip model when selecting

the chip model, and then select the model to be debugged; and check the "Dialog

DLL" below in the next Step 2. "Whether it is "OCD8_MLink.DLL"!

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Step 2. Set Debug

On the Debug page, select Use as "megawin MLink", and then tick the two options

"Load Application at Startup" and "Run to main()" below.

PS. Check if the "Dialog DLL" below is "OCD8_MLink.DLL"!

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4. Start Debug

Press "Start/Stop Debug Session" to enter the debugging screen.

Registers can see the register value of the current chip.

Memory displays data according to the address settings, as follows:

C: Flash Data

I: iData

X: xData

S: EEPROM (if supported by this part-no)

For other settings and operations, please refer to the instructions of Keil C IDE

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5. ICP8 Programmer

You can execute "ICP8_Programmer.exe" directly from the package directory, or by

Tools\megawin MLink ICP8 in Keil C IDE.

5.1. On-Line Mode Update

Step 1. Select Part No

Select a MCU Part No to be updated. If it is found to be incorrect, ID fail will be raised.

After selecting a different Part No, the Code Buffer will be cleared automatically.

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Step 2. Load File

Load Bin or Hex file to buffer, after clicking “OK”, users need to choose whether to

place it in the AP area (read into the buffer at 0x00) or IAP (users can define any

location to read into the buffer). Clicking “OK” to see update results in Code Buffer.

Users can Load File repeatedly and overlay files on each other. If users execute Load

File repeatedly, the overlapping file will be overwritten by the last file read. If there is

a blank between the read position of the previous and last files, 0xFF will be filled in.

Check “Clear Buffer” in the “Select Insert Area” dialog. After clicking “OK”, all the

Code Buffer will be cleared and then read into the File.

Step 3. Insert ISP-code

If users need to use ISP function, please click “Insert ISP-code” to insert megawin's

standard ISP code, or choose their own developed ISP code. After clicking “OK”, the

AP will automatically place the ISP code in the address corresponding to the Code

Buffer and set the necessary H/W Options setting concurrently.

Step 4. H/W Options

Customers can set OR setting by themselves. For the description of the setting value,

please refer to the “Datasheet”.

Step 5. Update

Click "Update" to execute programming. Before programming, "Whole Chip Erase"

will be executed, including the hardware options before programming, and then the

code and hardware options set this time will be program.

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5.2. Off-Line Mode Update

Step 1. Select Part No

Step 2. Load File

Step 3. Insert ISP-code

Step 4. H/W Options

Step 5. Off-Line Mode

Click “Off-Line Mode”to download setting (flash & H/W options setting) to MLink.

Furthermore, users can also set Max Counter and Serial Number. Max Counter can

control the number of times that MLink can perform off-line programming. Its

default value is 0 (meaning unlimited). After Serial Number Enable, 12 strings and 8

numbers can be set and be placed in any position of the Code Buffer. The Serial

Number function can even be implemented by Auto Increment Number.

Click “Read Info” to read the current Off-Line setting in MLink.

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