11 void send_buffer(bool crlf);
12 void send_string(char* s);
15 #define wait_for_tx_free() do { } while(0)
17 extern char sci_tx_buf[BUFFER_LEN];
18 extern volatile char sci_rx_buf[BUFFER_LEN];
19 extern volatile u8 sci_have_packet;
20 extern volatile bool sci_echo;