【GD32E503 Review 03】 Porting FreeRTOS to GD32E503 in 5 minutes

caizhiwei

【GD32E503 Review 03】 Porting FreeRTOS to GD32E503 in 5 minutes [Copy link]

 

1. By utilizing the powerful functions of MDK5, FreeRTOS can be quickly ported.

First, open the Pack toolkit of MDK and check the FreeRTOS middleware:

After this, there will definitely be 3 errors in the compilation, and the three functions have been defined repeatedly:

The following three interfaces are defined in FreeRTOSConfig.h:

/* Map the FreeRTOS port interrupt handlers to their CMSIS standard names. */
#define xPortPendSVHandler                    PendSV_Handler
#define vPortSVCHandler                       SVC_Handler
#define xPortSysTickHandler                   SysTick_Handler

In gd32e50x_it.c, you just need to block these functions.

/*!
    \brief      this function handles SVC exception
    \param[in]  none
    \param[out] none
    \retval     none
*/
//void SVC_Handler(void)
//{
//}

/*!
    \brief      this function handles DebugMon exception
    \param[in]  none
    \param[out] none
    \retval     none
*/
void DebugMon_Handler(void)
{
}

/*!
    \brief      this function handles PendSV exception
    \param[in]  none
    \param[out] none
    \retval     none
*/
//void PendSV_Handler(void)
//{
//}

/*!
    \brief      this function handles SysTick exception
    \param[in]  none
    \param[out] none
    \retval     none
*/
//void SysTick_Handler(void)
//{
//    delay_decrement();
//}

In the third step, we add our task creation function:

#include "systick.h"

#include "gd32e503v_eval.h"
#include "gd32e503v_lcd_eval.h"

#include "bsp_touch.h"
#include "picture.h"

#include <stdio.h>

#include "FreeRTOS.h"
#include "task.h"


#define LED1_TASK_PRIO    ( tskIDLE_PRIORITY + 2 )

void LED1_task(void * pvParameters);



static void led_init(void)
{
    /* initialize the leds */
    gd_eval_led_init(LED1);
    gd_eval_led_init(LED2);
    gd_eval_led_init(LED3);
    gd_eval_led_init(LED4);

    /* close all of leds */
    gd_eval_led_off(LED1);
    gd_eval_led_off(LED2);
    gd_eval_led_off(LED3);
    gd_eval_led_off(LED4);
}


/*!
    \brief      main function
    \param[in]  none
    \param[out] none
    \retval     none
*/
int main(void)
{
    //systick_config();

	led_init();
	
	 /* configure EVAL_COM0 */
    gd_eval_com_init(EVAL_COM0);

    /* configure TAMPER key */
    gd_eval_key_init(KEY_B, KEY_MODE_GPIO);
	
	printf("\r\nHello,eeworld!");
	

    /* configure the GPIO of SPI touch panel */
    touch_panel_gpio_configure();

    //delay_1ms(50);  

	/* configure the EXMC access mode */
    exmc_lcd_init();	
    /* initialize the LCD */
    lcd_init();

    /* clear the LCD screen */
    lcd_clear(LCD_COLOR_WHITE);

	uint8_t len_s;
	char *str;
	uint16_t i;
	
	char_format_struct char_format;
	
	char error_string[]="Hello,EEWORLD!";
	
    /* draw character on LCD screen */
    len_s = sizeof(error_string)-1;
    str = error_string;
    
 
// 	/* configure char format */
//    char_format.char_color = LCD_COLOR_RED;
//    char_format.bk_color = LCD_COLOR_WHITE;
//    char_format.direction = CHAR_DIRECTION_VERTICAL;
//    char_format.font = CHAR_FONT_8_16; 
//	
//    for (i = 0; i < len_s; i++)
//	{
//        lcd_char_display((8*i), 100 + 24, *str++, char_format);
//    }
	

	
	 /* configure char format */
    char_format.char_color = LCD_COLOR_BLUE;
    char_format.bk_color = LCD_COLOR_WHITE;
    char_format.direction = CHAR_DIRECTION_VERTICAL;
    char_format.font = CHAR_FONT_16_24; 
	
    for (i = 0; i < len_s; i++)
	{
        lcd_char_display((16*i), 10, *str++, char_format);
    }
	

	/* 设置优先级分组为4,16个优先级全是抢占优先级 */
    nvic_priority_group_set(NVIC_PRIGROUP_PRE4_SUB0);
	
	
	xTaskCreate(LED1_task, "LED1", configMINIMAL_STACK_SIZE, NULL, LED1_TASK_PRIO, NULL);
	
	/* start scheduler */
    vTaskStartScheduler();
	
    while(1){
    }
	
}





void LED1_task(void * pvParameters)
{  
    for( ;; ){
        /* toggle LED2 each 500ms */
        gd_eval_led_toggle(LED1);;
        vTaskDelay(100);
    }
}

Finally, the compilation is OK, the download is run, the LED starts flashing, and the OS is running!

Isn’t it very simple? There is no complicated adding of various files to the project and so on.

Welcome to communicate more~

w494143467

Awesome! The transplant is really fast, Liu Pi Liu Pi, I will try it when the time comes! Hehe

caizhiwei

w494143467 posted on 2021-1-20 15:19 Awesome! The transplant is really fast, Liu Pi Liu Pi, I will try it when the time comes! Hehehe

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