increase baudrate for performance

code/modbus.h

@@ -52,7 +52,7 @@ THE POSSIBILITY OF SUCH DAMAGE.
 
 /* define baudrate of modbus */
 #ifndef BAUD
-#define BAUD 38400L
+#define BAUD 115200L
 #endif
 
 /*

code/uart.c

@@ -1,52 +0,0 @@
-#include <avr/io.h>
-#include "uart.h"
-
-static int uart_putchar(char c, FILE *stream);
-
-FILE uart_output = FDEV_SETUP_STREAM(uart_putchar, NULL, _FDEV_SETUP_WRITE);
-
-void uart_init()
-{
-    DDRD |= 1 << 1; // TX
-    UART_BAUD_REGH  = (BAUDRATE>>8);
-    UART_BAUD_REGL  = BAUDRATE;               // set baud rate
-
-    UART_CTRL_REGB |= (1<<UART_TXEN_BM)
-                     //|(1<<UART_RXEN_BM)
-                     |(1<<UART_RXCIE_BM);     // enable receiver and transmitter
-
-    UART_CTRL_REGC |= (1<<UART_URSEL_BM)
-                     |(1<<UART_UCSZ0_BM)
-                     |(1<<UART_UCSZ1_BM);             // 8bit data format
-
-    stdout = &uart_output;
-}
-
-static int uart_putchar(char c, FILE *stream) {
-    if (c == '\n') {
-        uart_putchar('\r', stream);
-    }
-    loop_until_bit_is_set(UART_CTRL_REGA, UART_UDRE_BM);
-    UART_DATA_REG = c;
-    return 0;
-}
-
-void read_sync(char buffer[], uint8_t buffersize, uint8_t * bufferindex){
-    for(int i=0; i < buffersize; i++){
-        buffer[i]=0;
-    }
-    *bufferindex=0;
-
-    char input;
-    do{
-        while ((UART_CTRL_REGA & (1 << UART_RXC_BM)) == 0);
-        input = UART_DATA_REG;
-
-        putchar(input); //echo
-        buffer[*bufferindex]=input;
-        *bufferindex=*bufferindex+1;
-    }while(!(input == '\n' || input == '\r'));
-    buffer[*bufferindex]=0;
-    putchar('\n');
-}
-

code/uart.h

@@ -1,37 +0,0 @@
-#ifndef _UART_H_
-#define _UART_H_
-
-#include <stdio.h>
-
-#define BAUD 9600 
-#define BAUDRATE ((F_CPU)/(BAUD*16UL)-1)
-
-#define UART_BAUD_REGH UBRR0H
-#define UART_BAUD_REGL UBRR0L
-
-#define UART_CTRL_REGA UCSR0A
-#define UART_CTRL_REGB UCSR0B
-#define UART_CTRL_REGC UCSR0C
-
-// UCSRA
-#define UART_UDRE_BM UDRE0
-#define UART_RXC_BM RXC0
-
-// UCSRB
-#define UART_TXEN_BM TXEN0
-#define UART_RXEN_BM RXEN0
-#define UART_RXCIE_BM RXCIE0
-
-// UCSRC
-#define UART_URSEL_BM 0 /* only for old atmega */
-#define UART_UCSZ0_BM UCSZ00
-#define UART_UCSZ1_BM UCSZ01
-
-#define UART_DATA_REG UDR0
-
-void uart_init (void);
-void read_sync(char buffer[], uint8_t buffersize, uint8_t * bufferindex);
-
-#endif
-
-