/*
 * uart.h
 *
 *  Created on: 15 Mar 2022
 *      Author: pika
 */

#ifndef UART_H_
#define UART_H_

#ifndef __SYSTEM_LPC17xx_H
#define __SYSTEM_LPC17xx_H

#ifdef __cplusplus
extern "C" {
#endif

#ifdef __USE_CMSIS
#include "LPC17xx.h"
#endif

#include <cr_section_macros.h>
#include <string.h>

#endif /* __SYSTEM_LPC17xx_H */

#define DLAB_SET LPC_UART1->LCR |= (1<<7) //DLAB == 1
#define DLAB_CLR LPC_UART1->LCR &= ~(1<<7) //DLAB == 0 //not needed

#define SIZE_OF_BUFFER 8
#define UART_PCLK (100000000)

typedef struct circbuff_t{
uint8_t data[SIZE_OF_BUFFER];
uint16_t ptr_write;
uint16_t ptr_read;
} circbuff;



void uart_init(uint32_t baudrate);

void uart_send(char* buff, uint32_t length);

void uart_receive_command(char* chara);

void uart_receive_data(uint8_t* chara);


#define THRE        (1<<5)
#define MULVAL      15
#define DIVADDVAL   2
#define Ux_FIFO_EN  (1<<0)
#define RX_FIFO_RST (1<<1)
#define TX_FIFO_RST (1<<2)
#define DLAB_BIT    (1<<7)
#define CARRIAGE_RETURN 0x0D

#endif /* UART_H_ */