Based on my experience in getting started with various STM8 and MCS-51 boards, I wrote a few simple tutorials to help others. They use free tools only. For various evaluation boards there are three simple demos:
1) LED counter controlled by timer
2) Serial output
3) Dhrystone / Whetstone benchmarks
The tutorials can be found at:
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Please tell me if you find any mistakes, or have any suggestions for improvement.
Philipp
P.S.: Most of the STM8 tutorials have been around for a while, but recently I made some minor updates, and added tutorials porting the demos to lots of MCS-51 boards.