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XMC4200 and printf function using CMSIS

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Hello everyone,

I'm an electronics student working on my first ARM project with a XMC4200 hexagon board. I use keil MDK5 as an IDE.
I only have experience with the XC88 series programming in assambler so arm and Keil are completely new for me.
It took me a while to get started but now i'm able to setup the board and control some basic I/O.
Now i want to have some debug feedback from my board using a printf function.
From school out, i was only able to use the CMSIS library(so no dave generated code).
So i followed this link: link
and added this to my code. On the bottom of the page it goes about the redirect file.
I understand what this file is doing but i'm unable to get it working on my system.
When i go to the debug viewer in Keil, nothing is showing up.
Since i'm unable to find any tutorials or examples with the CMSIS library and a XMC microcontroller, i hope somebody on this forum could help me solve this issue.
Thank you in advance!

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