stc15: fix baudrate switching - Githubissues

grigorig / stcgal

Open Source STC MCU ISP flash tool

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stc15: fix baudrate switching #62

Closed grigorig closed 3 years ago

grigorig commented 3 years ago

Baudrate switching fixes for both HW and SW UART devices:

Program secondary SW UART timing parameter correctly. Supposedly this controls the sampling position when receiving data.
Swap around trim range/adjust parameter for HW UART devices (as determind by older traces)
Use correct constant for timing calculations

This should fix some STC15x10xW series MCUs. Compatibility to other devices might be improved as well.