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XMC™ Forum Discussions

User11021
Level 1
Level 1
hi,

i am working on XMC4200,how can i caliculate the system clock for this.

regards
srikanth.
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1 Reply
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Hi Srikanth,

Assuming you are using XMC4200-F64F256 AB model, here is its datasheet: http://www.infineon.com/dgdl/Infineon-XMC4100_XMC4200-DS-v01_02-en.pdf?fileId=db3a30433afc7e3e013b3c...

On page 34 it indicates that maximum(!) fSYS - system frequency - is 80 MHz. The default system frequency can be found in system_xmc4200.c file in the comment section.

However, you may want to take a look at the reference manual (http://www.infineon.com/dgdl/xmc4100_xmc4200_rm_v1.5_2014_04.pdf?fileId=db3a30433afc7e3e013b3c44ccd3...). Starting from page 478 it talks about the Clock Control Unit of SCU - it offers more flexibility in terms of adjusting system clock frequency and, based on system clock frequency fSYS, other clocks (e.g. fCPU).

Hope that helps.
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