2 #ifdef SERIAL_USE_MULTI_TRANSACTION
3 /* --- USE flexible API (using multi-type transaction function) --- */
8 #include <split_scomm.h>
14 uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
15 uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
16 uint8_t volatile status_com = 0;
17 uint8_t volatile status1 = 0;
18 uint8_t slave_buffer_change_count = 0;
19 uint8_t s_change_old = 0xff;
20 uint8_t s_change_new = 0xff;
22 SSTD_t transactions[] = {
23 #define GET_SLAVE_STATUS 0
24 /* master buffer not changed, only recive slave_buffer_change_count */
25 { (uint8_t *)&status_com,
27 sizeof(slave_buffer_change_count), &slave_buffer_change_count,
29 #define PUT_MASTER_GET_SLAVE_STATUS 1
30 /* master buffer changed need send, and recive slave_buffer_change_count */
31 { (uint8_t *)&status_com,
32 sizeof(serial_master_buffer), (uint8_t *)serial_master_buffer,
33 sizeof(slave_buffer_change_count), &slave_buffer_change_count,
35 #define GET_SLAVE_BUFFER 2
36 /* recive serial_slave_buffer */
37 { (uint8_t *)&status1,
39 sizeof(serial_slave_buffer), (uint8_t *)serial_slave_buffer
43 void serial_master_init(void)
45 soft_serial_initiator_init(transactions, TID_LIMIT(transactions));
48 void serial_slave_init(void)
50 soft_serial_target_init(transactions, TID_LIMIT(transactions));
54 // 1 => slave did not respond
55 // 2 => checksum error
56 int serial_update_buffers(int master_update)
58 int status, smatstatus;
59 static int need_retry = 0;
61 if( s_change_old != s_change_new ) {
62 smatstatus = soft_serial_transaction(GET_SLAVE_BUFFER);
63 if( smatstatus == TRANSACTION_END ) {
64 s_change_old = s_change_new;
66 uprintf("slave matrix = %b %b %b %b\n",
67 serial_slave_buffer[0], serial_slave_buffer[1],
68 serial_slave_buffer[2], serial_slave_buffer[3]);
72 // serial_slave_buffer dosen't change
73 smatstatus = TRANSACTION_END; // dummy status
76 if( !master_update && !need_retry) {
77 status = soft_serial_transaction(GET_SLAVE_STATUS);
79 status = soft_serial_transaction(PUT_MASTER_GET_SLAVE_STATUS);
81 if( status == TRANSACTION_END ) {
82 s_change_new = slave_buffer_change_count;
90 #endif // SERIAL_USE_MULTI_TRANSACTION
91 #endif /* USE_SERIAL */