Ultron

YEAAAAHHHH! It’s works!

For anyone with my problem:

Open the file xio_usart.h. Go down at this section: //**** USB device configuration ****

In this section code you must change these lines:

#define USB_USART USARTC0 // USB usart
#define USB_RX_ISR_vect USARTC0_RXC_vect // (RX) reception complete IRQ
#define USB_TX_ISR_vect USARTC0_DRE_vect // (TX) data register empty IRQ

with these lines:

#define USB_USART USARTC1 // USB usart
#define USB_RX_ISR_vect USARTC1_RXC_vect // (RX) reception complete IRQ
#define USB_TX_ISR_vect USARTC1_DRE_vect // (TX) data register empty IRQ
(only change the C0 with C1 serial port)

These lines:
#define USB_CTS_bp (1) // CTS – bit position (pin is wired on board)
#define USB_CTS_PINCTRL PIN1CTRL // CTS – PINxCTRL assignment

with these lines:
#define USB_CTS_bp (5) // CTS – bit position (pin is wired on board)
#define USB_CTS_PINCTRL PIN5CTRL // CTS – PINxCTRL assignment
(move the old pin1 to new pin5 for CTS signal)

This line:
#define USB_RTS_bp (0) // RTS – bit position (pin is wired on board)

with line:
#define USB_RTS_bp (4) // RTS – bit position (pin is wired on board)
(move the old pin 0 to new pin 4 for RTS signal)

These lines:
#define USB_RX_bm (1<<2) // RX pin bit mask
#define USB_TX_bm (1<<3) // TX pin bit mask

with these lines:
#define USB_RX_bm (1<<6) // RX pin bit mask
#define USB_TX_bm (1<<7) // TX pin bit mask
(move the old 2,3 RX-TX pins to new pins 6 and 7)

In this section: //**** RS485 device configuration (no echo or CRLF) ****
you must change the RS485-Serial pins and the Interrupts vector.

replaced these lines:

#define RS485_USART USARTC1 // RS485 usart
#define RS485_RX_ISR_vect USARTC1_RXC_vect // (RX) reception complete IRQ
#define RS485_TX_ISR_vect USARTC1_DRE_vect // (TX) data register empty IRQ
#define RS485_TXC_ISR_vect USARTC1_TXC_vect // (TX) transmission complete IRQ

#define RS485_PORT PORTC // port where USART is located
#define RS485_RE_bm (1<<4) // RE (Receive Enable) pin – active lo
#define RS485_DE_bm (1<<5) // DE (Data Enable)(TX) – active hi
#define RS485_RX_bm (1<<6) // RX pin
#define RS485_TX_bm (1<<7) // TX pin

with these lines:

#define RS485_USART USARTC0 // RS485 usart
#define RS485_RX_ISR_vect USARTC0_RXC_vect // (RX) reception complete IRQ
#define RS485_TX_ISR_vect USARTC0_DRE_vect // (TX) data register empty IRQ
#define RS485_TXC_ISR_vect USARTC0_TXC_vect // (TX) transmission complete IRQ

#define RS485_PORT PORTC // port where USART is located
#define RS485_RE_bm (1<<0) // RE (Receive Enable) pin – active lo
#define RS485_DE_bm (1<<1) // DE (Data Enable)(TX) – active hi
#define RS485_RX_bm (1<<2) // RX pin
#define RS485_TX_bm (1<<3) // TX pin
————————

Basically we reversed the USB-serial with RS485-serial (not used)

Good work…

Guido

Thanks for reply.

I should study all files of the project. This is beyond my skill.

The Hardware is simple. I not use the SPI, therefore no conflict.

I already soldered two wires on two pin of the chip atxmega. Pin are number 22 and 23 (serial1). I must only remap the serialport on the Firmware, and compile it.

My simple verify of the PortC pin

#include <avr/io.h>
#include <util/delay.h>

#define BLINK_DELAY_MS 1000

int main( void )
{
  PORTC.DIRSET = 0b11111111 ; // Set pin0  to 7 to be output.
  
  while(1){ // loop forever
    PORTC.OUTSET = 0b11111111 ; // set  all output high.
    _delay_ms( BLINK_DELAY_MS ) ; // wait.
    PORTC.OUTCLR = 0b11111111 ; // set  all output low.
    _delay_ms( BLINK_DELAY_MS ) ; // wait.
  }
}

In this code, output portC 0,1,3,4,5,6,7 blinking well, but portC 2 not blink (the RX input). No output, either HIGH or LOW. This is broken!

Thanks a lot.

I will open a Thread in your suggested Forum.

Ok, thanks a lot! My project started several months ago, but the G-Code interpreter has been a big obstacle (for arch and circle functions), so now i can “cut the head at the bull” (an italian slang 😉 ) and i use TinyG with my uC PIC32MZ series with 7″ TFT touch display (Human Interface Machine) and Sdcard.
My uC for HID, and your ATXmega for G-Code Intepreter!
I am happy! 🙂

Simply the code reads SDcard file, and it sends lines to ATXmega, one at a time, with a little delay() among the instrunctions, or it uses the RTS line for wait every time, the buffer is full. It’s Ok?