utils/ucmb/microcontroller_examples/atmel_avr8_optimized/ucmb.h

   1 #ifndef UCMB_AVR8_H_
   2 #define UCMB_AVR8_H_
   3
   4 #include <stdint.h>
   5
   6
   7 /* Max length of the message payload. */
   8 #define UCMB_MAX_MSG_LEN        (128 * 64 / 8 + 16)
   9
  10 /* ucmb_rx_message - Message receive callback.
  11  * Define this elsewhere. It's called on successful retrieval
  12  * of a new message.
  13  * If a reply message has to be transferred after this one, put the
  14  * message payload into the "payload" buffer and return the number
  15  * of bytes to transmit. If no reply message is needed, return 0.
  16  * Note that the "payload" buffer always has a size of UCMB_MAX_MSG_LEN.
  17  */
  18 extern uint16_t ucmb_rx_message(uint8_t *payload,
  19                                 uint16_t payload_length);
  20
  21 /* Initialize the UCMB subsystem. */
  22 void ucmb_init(void);
  23
  24 #endif /* UCMB_AVR8_H_ */