ubcsp_poll

*

uint8 ubcsp_poll (
　　uint8 * activity
)

activity

*
ubcsp_poll                                                              *
*
This is the main function for ubcsp                                     *
It performs a number of tasks                                           *
*
1) Send another octet to the UART - escaping as required                *
2) Setup the payload to be sent after the header has been sent          *
3) Send the CRC for the packet if required                              *
*
4) Calculate the next Link Establishment State                          *
5) Send a Link Establishment packet                                     *
6) Send a normal packet if available                                    *
7) Send an ACK packet if required                                       *
*
8) Receive octets from UART and deslip them as required                 *
9) Place received octets into receive header or receive payload buffer  *
10) Process received packet when SLIP_END is received                   *
*