Cool_Tools/td-io
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Implement 0x2F (re-transmit) command.

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Kevin Nakamura 2023-08-01 17:51:35 +09:00 committed by Thomas Daede
parent b6bfac917e
commit 58cc496a3d
1 changed files with 13 additions and 1 deletions
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14
firmware/td-io.c
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@ -39,6 +39,7 @@ const uint8_t JVS_REPORT_GOOD = 1;
const uint8_t JVS_REPORT_PARAMETER_INVALID = 3;
const uint8_t JVS_MAX_LEN = 253; // minus two for status and checksum
#define JVS_OUTPUT_BUF_LEN 512 // a few bytes to spare for easier overflow checking
// global state
uint8_t our_address = 0;
@ -271,6 +272,10 @@ int main() {
update_termination();
uint8_t prev_msg_send[JVS_OUTPUT_BUF_LEN];
uint8_t prev_msg_size = 0;
uint8_t prev_status = 0;
while (true) {
const uint64_t now = time_us_64();
if ((now - last_process_coin) > 20000) {
@ -295,7 +300,7 @@ int main() {
our_checksum += c;
message[i] = c;
}
uint8_t msg_send[256*2]; // a few bytes to spare for easier overflow checking
uint8_t msg_send[JVS_OUTPUT_BUF_LEN];
int o = 0;
uint8_t status = JVS_STATUS_GOOD;
uint8_t their_checksum = jvs_getc();
@ -478,6 +483,10 @@ int main() {
}
o += 2;
}
} else if ((msg_length - i) >= 1 && message[i] == 0x2f) {
printf("JVS re-transmit request!\n");
send_message(prev_status, prev_msg_send, prev_msg_size);
break;
} else if ((msg_length - i) >= 4 && message[i] == 0x30) {
uint8_t slot = message[i+1];
uint16_t amount = (message[i+2] << 8) + message[i+3];
@ -555,6 +564,9 @@ int main() {
fflush(stdout);
if ((o > 0) || (status != JVS_STATUS_GOOD)) {
send_message(status, msg_send, o);
memcpy(prev_msg_send, msg_send, o);
prev_status = status;
prev_msg_size = o;
}
} else {
printf("Checksum mismatch: theirs: %02x ours: %02x\n", their_checksum, our_checksum);