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serial_slave 67f62a79c1 freemodbus: add modbus master ascii пре 6 година
CMakeLists.txt 67f62a79c1 freemodbus: add modbus master ascii пре 6 година
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README.rst 4be2170250 freemodbus: add comments for limitation in current version of freemodbus пре 5 година
component.mk 449d2a6367 freemodbus: Fix bug with incorrect coils read mask пре 6 година
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README.rst

# Modbus assumptions, dependencies and constraints

1. Current implementation of Modbus has limitation: maximum frame size should be less than 120 bytes (default UART receive FIFO full threshold value).
This limitation is removed in ESP-IDF v4.2.

2. The only one instance of Modbus port can be initialized at the same time.