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Fix printer resets in farm mode if command "PRUSA SN" is received and 32U2 processor is not responding.

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This commit is contained in:
Marek Bel 2018-04-12 18:44:33 +02:00
parent 08740356b8
commit 388d6eea36
1 changed files with 39 additions and 25 deletions
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64
Firmware/Marlin_main.cpp
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@ -2508,35 +2508,49 @@ void gcode_M701()
}
/**
* @brief Get serial number from 32U2 processor
*
* Typical format of S/N is:CZPX0917X003XC13518
*
* Command operates only in farm mode, if not in farm mode, "Not in farm mode." is written to MYSERIAL.
*
* Send command ;S to serial port 0 to retrieve serial number stored in 32U2 processor,
* reply is transmitted to serial port 1 character by character.
* Operation takes typically 23 ms. If the retransmit is not finished until 100 ms,
* it is interrupted, so less, or no characters are retransmitted, only newline character is send
* in any case.
*/
static void gcode_PRUSA_SN()
{
if (farm_mode) {
selectedSerialPort = 0;
MSerial.write(";S");
// S/N is:CZPX0917X003XC13518
int numbersRead = 0;
if (farm_mode) {
selectedSerialPort = 0;
MSerial.write(";S");
int numbersRead = 0;
Timer timeout;
timeout.start();
while (numbersRead < 19) {
while (MSerial.available() > 0) {
uint8_t serial_char = MSerial.read();
selectedSerialPort = 1;
MSerial.write(serial_char);
numbersRead++;
selectedSerialPort = 0;
}
}
selectedSerialPort = 1;
MSerial.write('\n');
/*for (int b = 0; b < 3; b++) {
tone(BEEPER, 110);
delay(50);
noTone(BEEPER);
delay(50);
}*/
} else {
MYSERIAL.println("Not in farm mode.");
}
while (numbersRead < 19) {
while (MSerial.available() > 0) {
uint8_t serial_char = MSerial.read();
selectedSerialPort = 1;
MSerial.write(serial_char);
numbersRead++;
selectedSerialPort = 0;
}
if (timeout.expired(100)) break;
}
selectedSerialPort = 1;
MSerial.write('\n');
#if 0
for (int b = 0; b < 3; b++) {
tone(BEEPER, 110);
delay(50);
noTone(BEEPER);
delay(50);
}
#endif
} else {
MYSERIAL.println("Not in farm mode.");
}
}
void process_commands()