DataFrame library

Create formatted frame from basic types:

• uint8_t, int8_t => 1Byte
• uint16_t, int16_t => 2Bytes
• uint32_t, int32_t => 4Bytes
• float => 4Bytes

Data are stared in Little Endian format.

Structure of data frame:

• starting byte (0xCC)
• length of frame: count of bytes in payload. The first 2 bytes is not included to overal length. Maximum length: 254 (0xFE)
• payload
• CRC8

The library contans universal function:

• uint8_t crc8(uint8_t crc, uint8_t Size, uint8_t *Buffer);
• crc - inital value for CRC computig. For new frame, use 0x0
• Size - size of data Buffer

Detailed description of class: DataFrame

    void main(){
        uint8_t data[24];
 
        DataFrame packet(data_packet, sizeof(data_packet), TYPE_HEADER_1B,
CRC_ON);
 
        packet.AddUint8(0xAB);
        packet.AddUint16(65874);
        packet.AddInt8(-45874);
        packet.AddUint32(0x12345678);
        packet.AddInt32(-0xA2345678);
 
        packet.AddFloat(0.265);
        packet.AddFloat(-3.1415);
 
        // resulted length is 23B (20B of data, 1B preamble, 1B lenfth byte,1B
CRC) int data_length = packet.Commit(); if (packet.getError() == ERROR_NONE) {
            // frame[1] contain packet length. The real value is 20
            uint8_t* frame = packet.GetFrame();
        }
    }