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I wish to implement Modbus RTU slave RS-485 on an intelligent instrument using assemble language on a 8051 or PIC processor.
I am looking for any helpful hints, application notes, sample operating systems, magazines, examples of source code, sample circuits, or good books on the subject.
I've been to Modbus.org and Modicon.com, and have a pretty good understanding of the modbus protocol, but have only found information on implementing a modbus master.
I've been looking for weeks, and am at my wit's end. Any help would be much appreciated.
I am looking for any helpful hints, application notes, sample operating systems, magazines, examples of source code, sample circuits, or good books on the subject.
I've been to Modbus.org and Modicon.com, and have a pretty good understanding of the modbus protocol, but have only found information on implementing a modbus master.
I've been looking for weeks, and am at my wit's end. Any help would be much appreciated.