找到注册机这个文件夹。按下面步骤。
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* IAR Embedded Workbench for Atmel AVR v5.50.1 *
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1. Run "IARID.EXE" to get the Host-ID of the current computer.
2. Write the Host-ID to "IAR.BAT", e.g.:
IARKG.EXE 0x337C9 > serial.txt
3. Run "IAR.BAT".
4. Open "serial.txt" and get the serial number and license key
from the line with the following commentary:
"EWAVR" version "2.25_WIN", no expiration date, exclusive
5. Install the program with this information.
网上有教程的
看看