Filamentstr/02_Wasserbecken
Archived
1
0
Fork 0
Code Issues 4 Pull Requests Projects Releases Wiki Activity

change baudrate

Browse Source
This commit is contained in:
agsler
2022-11-11 13:18:02 +01:00
parent be06b3f380
commit 3cac15eb41
2 changed files with 12 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
uart.c
View File

@@ -8,8 +8,14 @@ FILE uart_output = FDEV_SETUP_STREAM(uart_putchar, NULL, _FDEV_SETUP_WRITE);
void uart_init() void uart_init()
{ {
DDRD |= 1 << 1; // TX DDRD |= 1 << 1; // TX
UART_BAUD_REGH = (BAUDRATE>>8); UART_BAUD_REGH = UBRRH_VALUE;//(BAUDRATE>>8);
UART_BAUD_REGL = BAUDRATE; // set baud rate UART_BAUD_REGL = UBRRL_VALUE;//BAUDRATE; // set baud rate
#if USE_2X
UART_CTRL_REGA |= (1 << USE_2X);
#else
UART_CTRL_REGA &= ~(1 << USE_2X);
#endif
UART_CTRL_REGB |= (1<<UART_TXEN_BM) UART_CTRL_REGB |= (1<<UART_TXEN_BM)
//|(1<<UART_RXEN_BM) //|(1<<UART_RXEN_BM)

6
uart.h
View File

@@ -1,9 +1,11 @@
#ifndef _UART_H_ #ifndef _UART_H_
#define _UART_H_ #define _UART_H_
#include <stdio.h> #define BAUD 115200
#include <stdio.h>
#include <util/setbaud.h>
#define BAUD 9600
#define BAUDRATE ((F_CPU)/(BAUD*16UL)-1) #define BAUDRATE ((F_CPU)/(BAUD*16UL)-1)
#define UART_BAUD_REGH UBRR0H #define UART_BAUD_REGH UBRR0H