FLANGE_SERIAL_DATA

Serial communication information is defined using a union, composed of:

Serial communication setting information (_tConfig)
Serial communication data information (_tValue)

It is used with _iCommand to determine which field is valid:

0 : Open
1 : Close
2 : Send
3 : Receive

BYTE#	Field Name	Data Type	Value	Remarks
0	`_iCommand`	`unsigned char`		Serial communication command in the low 4 bits (0: Open, 1: Close, 2: Send, 3: Recv) The high 4 bits hold the port number (`nPort * 16`) on a rev2 flange, and for Recv on either flange (port 1 on a rev1 flange).
1	`_tData`	`union`		Contains either configuration info or data buffer.

_tConfig structure (Serial Configuration):
The union for serial communication information is defined as follows. On a rev1 flange, flange_serial_open fills these fields from its parameters; see flange_serial_open for the accepted values. On a rev2 flange, flange_serial_open sets only _iCommand (nPort * 16) and these fields stay zero.

BYTE#	Field Name	Data Type	Value	Remarks
0	`_tConfig._szBaudrate`	`unsigned char[7]`	ASCII	Baud rate as 7-byte text
7	`_tConfig._szDataLength`	`unsigned char`		byte size
8	`_tConfig._szParity`	`unsigned char`		Parity Check
9	`_tConfig._szStopBit`	`unsigned char`	1 or 2	Stop bits

_tValue structure (Serial Data Buffer):
Serial communication data information is defined as follows.

BYTE#	Field Name	Data Type	Value	Remarks
0	`_tValue._iLength`	`unsigned short`		RX/TX data length (bytes)
2	`_tValue._szValue`	`unsigned char[MAX_SYMBOL_SIZE]`		Data buffer (up to 32 bytes)

Total size: 35 bytes

Defined in: DRFS.h

typedef struct _FLANGE_SERIAL_DATA
{
    unsigned char _iCommand;   // 0: Open, 1: Close, 2: Send, 3: Recv
    union {
        struct {
            unsigned char _szBaudrate[7];  // "0115200"(ASCII)
            unsigned char _szDataLength;   // 0: 1bit, 7: 8bit
            unsigned char _szParity;       // 0x00: None, 0x01: Odd, 0x02: Even
            unsigned char _szStopBit;      // 0x01: 1 Stop bit, 0x02: 2 Stop bits
        } _tConfig;

        struct {
            unsigned short _iLength;             // RX Data Length
            unsigned char  _szValue[MAX_SYMBOL_SIZE]; // RX/TX Data (32 bytes)
        } _tValue;
    } _tData;
} FLANGE_SERIAL_DATA, *LPFLANGE_SERIAL_DATA;