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Keil MDK, also known as MDK-ARM, Realview MDK, I-MDK, uVision4, etc. Keil MDK is supported by three domestic agents who provide technical support and related services.
The MDK-ARM software provides a complete development environment for devices based on Cortex-M, Cortex-R4, ARM7, and ARM9 processors. MDK-ARM is designed specifically for microcontroller applications, making it easy to learn and use while being powerful enough to meet the needs of most demanding embedded applications.
The download link is below
1
First, we download the installation file of keil5 from the compressed package.

2
Click [next] to proceed with the installation.

3
Agree to the agreement and then click [next].

4
This step is to select the installation path for MDK and the PACK package. Click [next].

5
This step can be filled in casually.

6
Wait for the installation to complete, then click [next] and wait for the installation to finish. 
7
Installation completed.

8
After installation, open the KEIL shortcut on the desktop and run as administrator.

9
After running, open the MDK, click [file] in the upper left corner, select [license management] from the list, and copy this CID.

10
Open the crack file in the compressed package.

11
According to the order on the image, copy the CID into 1, then select [ARM], then select the version in the third step, and finally click [Generate].

12
After completing the above operation, an ID Code will be generated. Copy this to the bottom and click [Add Lic].

13
Then the crack is complete.

Download Keil5 MDK
Download link
Link: https://pan.baidu.com/s/1XtvXeeFoWBekbiZY6P7XAQ Extraction code: 8888

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