436-0100-01-10, Rev. 200 Duo User Guide
Information on this page is subject to change without notice
Identification
code
1 Byte
Instruction number
2 Bytes
Instruction length
2 Bytes
Instruction body format:
Struct {
uint8_t u8SDcardNo; // SD card number, from 1 to start
Byte Reserve [3]; // Reserved
};
CRC Description :
In CSP-TCP applications, the CRC is ignored
Instruction Application: UART /
TCP
Data flow: CS --- G / A
Identification
code
1 Byte
Instruction number
2 Bytes
Instruction length
2 Bytes
Instruction body
12 Bytes
Instruction body format:
Struct {
uint8_t u8SDcardNo; // SD card number, from 1 to start
// SD card status, 0 - available 1 nonexistent 2 - card full 3 - exception 4 - format
error or format unrecognizable
Byte Reserve [2]; // Reserved
Uint32_t u32 Total ; // total capacity in megabytes
Uint32_t u32Free; // remaining capacity in megabytes
};