2 #ifdef SERIAL_USE_MULTI_TRANSACTION
3 /* --- USE flexible API (using multi-type transaction function) --- */
8 #include <split_scomm.h>
10 #ifdef SERIAL_DEBUG_MODE
17 uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
18 uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
19 uint8_t volatile status_com = 0;
20 uint8_t volatile status1 = 0;
21 uint8_t slave_buffer_change_count = 0;
22 uint8_t s_change_old = 0xff;
23 uint8_t s_change_new = 0xff;
25 SSTD_t transactions[] = {
26 #define GET_SLAVE_STATUS 0
27 /* master buffer not changed, only recive slave_buffer_change_count */
28 { (uint8_t *)&status_com,
30 sizeof(slave_buffer_change_count), &slave_buffer_change_count,
32 #define PUT_MASTER_GET_SLAVE_STATUS 1
33 /* master buffer changed need send, and recive slave_buffer_change_count */
34 { (uint8_t *)&status_com,
35 sizeof(serial_master_buffer), (uint8_t *)serial_master_buffer,
36 sizeof(slave_buffer_change_count), &slave_buffer_change_count,
38 #define GET_SLAVE_BUFFER 2
39 /* recive serial_slave_buffer */
40 { (uint8_t *)&status1,
42 sizeof(serial_slave_buffer), (uint8_t *)serial_slave_buffer
46 void serial_master_init(void)
48 soft_serial_initiator_init(transactions, TID_LIMIT(transactions));
51 void serial_slave_init(void)
53 soft_serial_target_init(transactions, TID_LIMIT(transactions));
57 // 1 => slave did not respond
58 // 2 => checksum error
59 int serial_update_buffers(int master_update)
61 int status, smatstatus;
62 static int need_retry = 0;
64 if( s_change_old != s_change_new ) {
65 smatstatus = soft_serial_transaction(GET_SLAVE_BUFFER);
66 if( smatstatus == TRANSACTION_END ) {
67 s_change_old = s_change_new;
69 uprintf("slave matrix = %b %b %b %b %b\n",
70 serial_slave_buffer[0], serial_slave_buffer[1],
71 serial_slave_buffer[2], serial_slave_buffer[3],
72 serial_slave_buffer[4] );
76 // serial_slave_buffer dosen't change
77 smatstatus = TRANSACTION_END; // dummy status
80 if( !master_update && !need_retry) {
81 status = soft_serial_transaction(GET_SLAVE_STATUS);
83 status = soft_serial_transaction(PUT_MASTER_GET_SLAVE_STATUS);
85 if( status == TRANSACTION_END ) {
86 s_change_new = slave_buffer_change_count;
94 #endif // SERIAL_USE_MULTI_TRANSACTION
95 #endif /* USE_SERIAL */