Hello Maxim Khomutov:
The software you develop and test with the TWR-K60D100M (using MK60DN512VMD10) should be entirely compatible with your K20_100 MHz device, as long as you pay attention to some conditions:
-> Do not implement any code for peripherals not present on K20 (e.g. CAN or ETHERNET code), or using more instances of the same kind of peripheral than those available on your device. If you create a project for K20, which uses the K20 header file (register mapping) then the compiler will even throw errors if you try to use unimplemented features.
-> Consider the memory sizes and boundaries. K60DN512xxx10 is a superset device with the largest Flash and RAM memories in the K60_100 MHz family, but yours may have less memory. A typical approach is to use the linker file of your actual K20 device. The procedure depends on the IDE (KDS, IAR, Keil, etc..).
-> If your K20 has FlexMemory (with X in the part number, e.g. K20DX256) then the TWR-K60D100M is not suitable to try that functionality. For that case you would need to use a TWR-K40D100M board, which has a MK40DX256.
-> Check the package of your K20 and make sure not to use nonexistent pins on your code.
I hope this helps. If you have doubts please let me know.
Regards!,
Jorge Gonzalez
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