(1)
The first typical usage of this component shows how to store a byte of the data to the output buffer. After clock signal is initiated to Vsync, more bytes are sent using event OnTxChar.

MAIN.C

byte message[]={10,11,12};
byte snd;

void main(void)
{

    :
  snd = 0;
  (void)DC1_SendChar(message[0]);
  snd++;

    :

}

EVENTS.C

extern byte snd;
extern byte message[];

void DC1_OnTxChar(void)
{
  (void)DC1_SendChar(message[snd]);
  snd++;
  if(snd == 4) snd=0;
}

(2)
To send more bytes, its better to use SendBlock method, that stores all bytes to the output buffer.OnFreeTxBuf event indicates completition of the transmission. Following bean settings are supposed: Output buffer size 5.

MAIN.C

byte message[]={10,11,12};
byte flag;
word snd;

void main(void)
{

     :
  flag = 0;
  (void)DC1_SendBlock(message,3,&snd);

     :
  
  if (flag == 1) {
    flag = 0;
    /* message completed */
  }
}

EVENTS.C

extern byte flag;

void DC1_OnFreeTxBuf(void)
{
  flag = 1;
}