20 lines
502 B
C
20 lines
502 B
C
#ifndef UART_H
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#define UART_H
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#include <stdint.h>
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#define UART1_BAUD_RATE 9600
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// Macro definitions
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#define APB1_CLOCK (FUNCONF_SYSTEM_CORE_CLOCK / 2) // APB1 is divided by 2
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#define UART_BRR_APB1 \
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(((APB1_CLOCK) + (UART_BAUD_RATE / 2)) / (UART_BAUD_RATE)) // USART2
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#define UART_BRR_APB2 \
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(((FUNCONF_SYSTEM_CORE_CLOCK) + (UART1_BAUD_RATE / 2)) / \
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(UART1_BAUD_RATE)) // USART1
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// Function prototypes
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void init_uart(int uart_brr);
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#endif // UART_H
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