main.c File Reference

#include <stdint.h>
#include "navhal.h"

Include dependency graph for main.c:

Macros
#define	CORTEX_M4
#define	PERIPH_BASE   0x40000000UL
#define	AHB1PERIPH_BASE   (PERIPH_BASE + 0x00020000UL)
#define	APB1PERIPH_BASE   (PERIPH_BASE + 0x00000000UL)
#define	GPIOA_BASE   (AHB1PERIPH_BASE + 0x0000)
#define	RCC_BASE   (AHB1PERIPH_BASE + 0x3800)
#define	USART2_BASE   (APB1PERIPH_BASE + 0x4400)
#define	RCC_AHB1ENR   (*(volatile uint32_t *)(RCC_BASE + 0x30))
#define	RCC_APB1ENR   (*(volatile uint32_t *)(RCC_BASE + 0x40))
#define	GPIOA_MODER   (*(volatile uint32_t *)(GPIOA_BASE + 0x00))
#define	GPIOA_AFRL   (*(volatile uint32_t *)(GPIOA_BASE + 0x20))
#define	USART2_SR   (*(volatile uint32_t *)(USART2_BASE + 0x00))
#define	USART2_DR   (*(volatile uint32_t *)(USART2_BASE + 0x04))
#define	USART2_BRR   (*(volatile uint32_t *)(USART2_BASE + 0x08))
#define	USART2_CR1   (*(volatile uint32_t *)(USART2_BASE + 0x0C))
#define	RCC_AHB1ENR_GPIOAEN   (1 << 0)
#define	RCC_APB1ENR_USART2EN   (1 << 17)
#define	USART_CR1_UE   (1 << 13)
#define	USART_CR1_TE   (1 << 3)
#define	USART_SR_TXE   (1 << 7)

Functions
void	delay (volatile uint32_t count)
void	uart2_init (void)
void	uart2_write_char (char c)
void	uart2_write_int (int num)
void	uart2_write_string (const char *s)
int	main (void)
	Main entry point.

Variables
hal_clock_config_t	clk_cfg
hal_pll_config_t	pll_cfg

Macro Definition Documentation

AHB1PERIPH_BASE

#define AHB1PERIPH_BASE   (PERIPH_BASE + 0x00020000UL)

APB1PERIPH_BASE

#define APB1PERIPH_BASE   (PERIPH_BASE + 0x00000000UL)

CORTEX_M4

#define CORTEX_M4

GPIOA_AFRL

#define GPIOA_AFRL   (*(volatile uint32_t *)(GPIOA_BASE + 0x20))

GPIOA_BASE

#define GPIOA_BASE   (AHB1PERIPH_BASE + 0x0000)

GPIOA_MODER

#define GPIOA_MODER   (*(volatile uint32_t *)(GPIOA_BASE + 0x00))

PERIPH_BASE

#define PERIPH_BASE   0x40000000UL

RCC_AHB1ENR

#define RCC_AHB1ENR   (*(volatile uint32_t *)(RCC_BASE + 0x30))

RCC_AHB1ENR_GPIOAEN

#define RCC_AHB1ENR_GPIOAEN   (1 << 0)

RCC_APB1ENR

#define RCC_APB1ENR   (*(volatile uint32_t *)(RCC_BASE + 0x40))

RCC_APB1ENR_USART2EN

#define RCC_APB1ENR_USART2EN   (1 << 17)

RCC_BASE

#define RCC_BASE   (AHB1PERIPH_BASE + 0x3800)

USART2_BASE

#define USART2_BASE   (APB1PERIPH_BASE + 0x4400)

USART2_BRR

#define USART2_BRR   (*(volatile uint32_t *)(USART2_BASE + 0x08))

USART2_CR1

#define USART2_CR1   (*(volatile uint32_t *)(USART2_BASE + 0x0C))

USART2_DR

#define USART2_DR   (*(volatile uint32_t *)(USART2_BASE + 0x04))

USART2_SR

#define USART2_SR   (*(volatile uint32_t *)(USART2_BASE + 0x00))

USART_CR1_TE

#define USART_CR1_TE   (1 << 3)

USART_CR1_UE

#define USART_CR1_UE   (1 << 13)

USART_SR_TXE

#define USART_SR_TXE   (1 << 7)

Function Documentation

delay()

void delay

(

volatile uint32_t

count

)

main()

int main

(

void

)

Main entry point.

Main application entry point.

Initializes GPIOA pin 5 as output and toggles it in an infinite loop. Typically connected to an LED (e.g., onboard LED on Nucleo boards).

uart2_init()

void uart2_init

(

void

)

uart2_write_char()

void uart2_write_char

(

char

c

)

uart2_write_int()

void uart2_write_int

(

int

num

)

uart2_write_string()

void uart2_write_string

(

const char *

s

)

Variable Documentation

clk_cfg

hal_clock_config_t clk_cfg

Initial value:

= {
    HAL_CLOCK_SOURCE_PLL}

pll_cfg

hal_pll_config_t pll_cfg

Initial value:

= {
    .input_src = HAL_CLOCK_SOURCE_HSE,
    .pll_m = 16,  
    .pll_n = 336, 
    .pll_p = 4,   
    .pll_q = 7    
}