//19200 baud per character time 572us, 1.5 character times as 858+572 = 1430us, 3.5 character times as 2002+572 = 2574us// 1.5 character times T1_15 constant delay: (65536-T1_15) = 1430, T1_15 = 64106 = 0xFA6A// 3.5 character times T1_35 constant delay: (65536-T1_35) = 2574, T1_35 = 62962 = 0xF5F2// station number of a command is issued after 10ms the correct information is not received within the frame, that no such station number// using TMR0 delay 10ms: 256* K = 10000, was K = 39, to take the pre-divide ratio is 1:64,// ​ ​ (256-X) 64 = 10000, get X = 100 = 0x64

RS485_877A1.C
RS485_877A1.hex
RS485_688a.C
RS485_688a.hex

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