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Support the second serial (original commit 7d2d6c6fdc on MK2 by AndreeeCZ)

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This commit is contained in:
Robert Pelnar 2017-09-13 13:35:22 +02:00
parent 0685439e36
commit 14519aa7ee
3 changed files with 134 additions and 20 deletions
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45
Firmware/MarlinSerial.cpp
View file

@ -23,6 +23,8 @@
#include "Marlin.h"
#include "MarlinSerial.h"
int selectedSerialPort;
#ifndef AT90USB
// this next line disables the entire HardwareSerial.cpp,
// this is so I can support Attiny series and any other chip without a UART
@ -64,6 +66,23 @@ FORCE_INLINE void store_char(unsigned char c)
store_char(c);
}
}
SIGNAL(USART2_RX_vect)
{
if (selectedSerialPort == 1) {
// Test for a framing error.
if (UCSR2A & (1<<FE2)) {
// Characters received with the framing errors will be ignored.
// The temporary variable "c" was made volatile, so the compiler does not optimize this out.
volatile unsigned char c = UDR2;
} else {
// Read the input register.
unsigned char c = UDR2;
store_char(c);
}
}
}
#endif
// Constructors ////////////////////////////////////////////////////////////////
@ -88,7 +107,7 @@ void MarlinSerial::begin(long baud)
useU2X = false;
}
#endif
// set up the first (original serial port)
if (useU2X) {
M_UCSRxA = 1 << M_U2Xx;
baud_setting = (F_CPU / 4 / baud - 1) / 2;
@ -104,13 +123,35 @@ void MarlinSerial::begin(long baud)
sbi(M_UCSRxB, M_RXENx);
sbi(M_UCSRxB, M_TXENx);
sbi(M_UCSRxB, M_RXCIEx);
// set up the second serial port
if (useU2X) {
UCSR2A = 1 << U2X2;
baud_setting = (F_CPU / 4 / baud - 1) / 2;
} else {
UCSR2A = 0;
baud_setting = (F_CPU / 8 / baud - 1) / 2;
}
// assign the baud_setting, a.k.a. ubbr (USART Baud Rate Register)
UBRR2H = baud_setting >> 8;
UBRR2L = baud_setting;
sbi(UCSR2B, RXEN2);
sbi(UCSR2B, TXEN2);
sbi(UCSR2B, RXCIE2);
}
void MarlinSerial::end()
{
cbi(M_UCSRxB, M_RXENx);
cbi(M_UCSRxB, M_TXENx);
cbi(M_UCSRxB, M_RXCIEx);
cbi(M_UCSRxB, M_RXCIEx);
cbi(UCSR2B, RXEN2);
cbi(UCSR2B, TXEN2);
cbi(UCSR2B, RXCIE2);
}

59
Firmware/MarlinSerial.h
View file

@ -73,6 +73,7 @@
// is the index of the location from which to read.
#define RX_BUFFER_SIZE 128
extern int selectedSerialPort;
struct ring_buffer
{
@ -110,24 +111,48 @@ class MarlinSerial //: public Stream
}
FORCE_INLINE void checkRx(void)
void checkRx(void)
{
if((M_UCSRxA & (1<<M_RXCx)) != 0) {
// Test for a framing error.
if (M_UCSRxA & (1<<M_FEx)) {
// Characters received with the framing errors will be ignored.
// The temporary variable "c" was made volatile, so the compiler does not optimize this out.
volatile unsigned char c = M_UDRx;
} else {
unsigned char c = M_UDRx;
int i = (unsigned int)(rx_buffer.head + 1) % RX_BUFFER_SIZE;
// if we should be storing the received character into the location
// just before the tail (meaning that the head would advance to the
// current location of the tail), we're about to overflow the buffer
// and so we don't write the character or advance the head.
if (i != rx_buffer.tail) {
rx_buffer.buffer[rx_buffer.head] = c;
rx_buffer.head = i;
if (selectedSerialPort == 0) {
if((M_UCSRxA & (1<<M_RXCx)) != 0) {
// Test for a framing error.
if (M_UCSRxA & (1<<M_FEx)) {
// Characters received with the framing errors will be ignored.
// The temporary variable "c" was made volatile, so the compiler does not optimize this out.
volatile unsigned char c = M_UDRx;
} else {
unsigned char c = M_UDRx;
int i = (unsigned int)(rx_buffer.head + 1) % RX_BUFFER_SIZE;
// if we should be storing the received character into the location
// just before the tail (meaning that the head would advance to the
// current location of the tail), we're about to overflow the buffer
// and so we don't write the character or advance the head.
if (i != rx_buffer.tail) {
rx_buffer.buffer[rx_buffer.head] = c;
rx_buffer.head = i;
}
selectedSerialPort = 0;
}
}
} else if(selectedSerialPort == 1) {
if((UCSR2A & (1<<RXC2)) != 0) {
// Test for a framing error.
if (UCSR2A & (1<<FE2)) {
// Characters received with the framing errors will be ignored.
// The temporary variable "c" was made volatile, so the compiler does not optimize this out.
volatile unsigned char c = UDR2;
} else {
unsigned char c = UDR2;
int i = (unsigned int)(rx_buffer.head + 1) % RX_BUFFER_SIZE;
// if we should be storing the received character into the location
// just before the tail (meaning that the head would advance to the
// current location of the tail), we're about to overflow the buffer
// and so we don't write the character or advance the head.
if (i != rx_buffer.tail) {
rx_buffer.buffer[rx_buffer.head] = c;
rx_buffer.head = i;
}
selectedSerialPort = 1;
}
}
}

50
Firmware/Marlin_main.cpp
View file

@ -1111,6 +1111,17 @@ void setup()
lcd_print_at_PGM(0, 2, PSTR(" 3D Printers "));
setup_killpin();
setup_powerhold();
farm_mode = eeprom_read_byte((uint8_t*)EEPROM_FARM_MODE);
EEPROM_read_B(EEPROM_FARM_NUMBER, &farm_no);
//if ((farm_mode == 0xFF && farm_no == 0) || (farm_no == 0xFFFF)) farm_mode = false; //if farm_mode has not been stored to eeprom yet and farm number is set to zero or EEPROM is fresh, deactivate farm mode
if (farm_no == 0xFFFF) farm_no = 0;
if (farm_mode)
{
prusa_statistics(8);
selectedSerialPort = 1;
}
else
selectedSerialPort = 0;
MYSERIAL.begin(BAUDRATE);
SERIAL_PROTOCOLLNPGM("start");
SERIAL_ECHO_START;
@ -1523,6 +1534,12 @@ void get_command()
rx_buffer_full = true; //sets flag that buffer was full
}
char serial_char = MYSERIAL.read();
if (selectedSerialPort == 1)
{
selectedSerialPort = 0;
MYSERIAL.write(serial_char);
selectedSerialPort = 1;
}
TimeSent = millis();
TimeNow = millis();
@ -2082,6 +2099,9 @@ void homeaxis(int axis)
axis_known_position[axis] = true;
#ifdef TMC2130
tmc2130_home_exit();
// destination[axis] += 2;
// plan_buffer_line(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], destination[E_AXIS], homing_feedrate[axis]/60, active_extruder);
// st_synchronize();
#endif
}
else if ((axis==Z_AXIS)?HOMEAXIS_DO(Z):0)
@ -2331,7 +2351,35 @@ void process_commands()
trace();
prusa_sd_card_upload = true;
card.openFile(strchr_pointer+4,false);
} else if(code_seen("Fir")){
} else if (code_seen("SN")) {
if (farm_mode) {
selectedSerialPort = 0;
MSerial.write(";S");
// S/N is:CZPX0917X003XC13518
int numbersRead = 0;
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.");
}
} else if(code_seen("Fir")){
SERIAL_PROTOCOLLN(FW_version);