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Implement 0x2F (re-transmit) command.
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@ -39,6 +39,7 @@ const uint8_t JVS_REPORT_GOOD = 1;
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const uint8_t JVS_REPORT_PARAMETER_INVALID = 3;
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const uint8_t JVS_MAX_LEN = 253; // minus two for status and checksum
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#define JVS_OUTPUT_BUF_LEN 512 // a few bytes to spare for easier overflow checking
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// global state
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uint8_t our_address = 0;
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@ -271,6 +272,10 @@ int main() {
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update_termination();
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uint8_t prev_msg_send[JVS_OUTPUT_BUF_LEN];
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uint8_t prev_msg_size = 0;
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uint8_t prev_status = 0;
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while (true) {
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const uint64_t now = time_us_64();
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if ((now - last_process_coin) > 20000) {
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@ -295,7 +300,7 @@ int main() {
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our_checksum += c;
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message[i] = c;
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}
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uint8_t msg_send[256*2]; // a few bytes to spare for easier overflow checking
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uint8_t msg_send[JVS_OUTPUT_BUF_LEN];
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int o = 0;
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uint8_t status = JVS_STATUS_GOOD;
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uint8_t their_checksum = jvs_getc();
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@ -478,6 +483,10 @@ int main() {
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}
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o += 2;
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}
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} else if ((msg_length - i) >= 1 && message[i] == 0x2f) {
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printf("JVS re-transmit request!\n");
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send_message(prev_status, prev_msg_send, prev_msg_size);
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break;
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} else if ((msg_length - i) >= 4 && message[i] == 0x30) {
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uint8_t slot = message[i+1];
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uint16_t amount = (message[i+2] << 8) + message[i+3];
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@ -555,6 +564,9 @@ int main() {
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fflush(stdout);
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if ((o > 0) || (status != JVS_STATUS_GOOD)) {
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send_message(status, msg_send, o);
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memcpy(prev_msg_send, msg_send, o);
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prev_status = status;
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prev_msg_size = o;
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}
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} else {
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printf("Checksum mismatch: theirs: %02x ours: %02x\n", their_checksum, our_checksum);
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