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WI.232FHSS-250-R 数据表(PDF) 59 Page - Radiometrix Ltd |
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WI.232FHSS-250-R 数据表(HTML) 59 Page - Radiometrix Ltd |
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59 / 67 page ![]() WI.232FHSS-25-R/ WI.232FHSS-250-R DATASHEET 58 Revision 1.1.0 WARNING: Be sure that the module is properly powered and remains powered for the duration of the register write. Loss of important configuration information could occur if the unit loses power during a non- volatile write cycle. Byte 0 Byte 1 Byte 2 Byte 3 Header Size Register Value 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 0xFF 0x02 0 Register 0 Value Table 27, Write Register Command, value to be written is less than 128 (0x80) Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Header Size Register Escape Value 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 654321 0 7 65432 1 0 7 6 5 4321 0 0xFF 0x03 0 Register 0xFE 0 Lower 7 bits of Value Table 28, Write Register Command, value to be written is greater than or equal to 128 (0x80) The module will respond to this command with an ACK (0x06). If an ACK is not received, the command should be resent. If a write is attempted to a read-only or invalid register, the module will respond with a NACK (0x15). 5.5. Reading from Registers A register read command is constructed by placing an escape character before the register number. The following table shows the byte sequence for reading a register. Byte 0 Byte 1 Byte 2 Byte 3 Header Size Escape Register 7 6 5 4 3 2 1 0 7 6 5 43 210 7 65 4 32107 6 5 4 32 1 0 0xFF 0x02 0xFE 0 Register Table 29, Read Register Command The module will respond to this command by sending an ACK (0x06) followed by the register number and register value. The register value is sent unmodified. For example, if the register value is 0x83, 0x83 is returned after the ACK (0x06). See table below for the format of the response. If the register number is invalid, it will respond with a NACK (0x15). Byte 0 Byte 1 Byte 2 ACK Register Value 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 0x06 0 Register Value Table 30, Read Register Module Response for a Valid Register |
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