60 lines
1017 B
C
60 lines
1017 B
C
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/*
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* uart.h
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*
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* Created on: 15 Mar 2022
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* Author: pika
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*/
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#ifndef UART_H_
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#define UART_H_
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#ifndef __SYSTEM_LPC17xx_H
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#define __SYSTEM_LPC17xx_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef __USE_CMSIS
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#include "LPC17xx.h"
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#endif
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#include <cr_section_macros.h>
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#include <string.h>
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#endif /* __SYSTEM_LPC17xx_H */
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#define DLAB_SET LPC_UART1->LCR |= (1<<7) //DLAB == 1
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#define DLAB_CLR LPC_UART1->LCR &= ~(1<<7) //DLAB == 0 //not needed
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#define SIZE_OF_BUFFER 8
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#define UART_PCLK (100000000)
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typedef struct circbuff_t{
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uint8_t data[SIZE_OF_BUFFER];
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uint16_t ptr_write;
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uint16_t ptr_read;
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} circbuff;
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void uart_init(uint32_t baudrate);
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void uart_send(char* buff, uint32_t length);
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void uart_receive_command(char* chara);
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void uart_receive_data(uint8_t* chara);
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#define THRE (1<<5)
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#define MULVAL 15
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#define DIVADDVAL 2
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#define Ux_FIFO_EN (1<<0)
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#define RX_FIFO_RST (1<<1)
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#define TX_FIFO_RST (1<<2)
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#define DLAB_BIT (1<<7)
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#define CARRIAGE_RETURN 0x0D
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#endif /* UART_H_ */
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