Recently, TobudOS was donated to the Open Source Atomic Foundation. After experiencing its system, I felt it was easy to use and the porting was also very easy. Here I would like to share with you the porting process.
【Source code download】
Website: https://atomgit.com/OpenAtomFoundation/TobudOS
The internet speed is still very fast.
【Project Template】
I downloaded the software package provided by the forum, unzipped it, found the template and named it.
2. Compile the engineering version to ensure that the compilation can pass, and the flashing light and printf can print normally.
3. After unzipping the TobudOS source, create a new os folder in the project directory and copy the arch and kernel in the source code to the folder.
3. According to the official information, the core of the ACM32G103 chip is based on the ARMv8-M architecture and supports Cortex-M33 and Cortex-M4F, so I choose the Cortex-M33 core to port here.
4. In the project, I created three new project groups, namely kernel, arc, and config:
5. Add all the .c files under \os\kernel\core to the os/kernel project, add port_c.c and port_s.S under the \os\arch\arm\arm-v8m\cortex-m33\armcc directory to os/arch, and add the directory \os\arch\arm\arm-v8m\common to the arch project group.
6. Copy a copy of tos_config.h from the \TobudOS-master\board\BearPi_STM32L431RC\TOS-CONFIG folder of the source code to the project and add it to the os/config group.
7. Add the header files required by the project into the project, as follows:
7. Add main.h to the tos_config.h file, find the bus clock of the project, and add it to config.h.
8. Comment out the PenSV_handle function in acm32g103_it.c, because this interrupt function is defined in tobudos, otherwise it will be reported as a duplicate definition, or you can add back __weak.
9. Redefine the SysTick_handle function to provide heartbeat for tobudOS. Of course, you can also define a 1ms timer to provide heartbeat packets for the system.
/******************************************************************************
*[url=home.php?mod=space&uid=159083]@brief[/url] : System tick handler
*@param : none
*@return: none
******************************************************************************/
void SysTick_Handler(void)
{
//HAL_IncTick();
if(tos_knl_is_running())
{
tos_knl_irq_enter();
tos_tick_handler();
tos_knl_irq_leave();
}
}
10. Create two tasks in main.c. The code is as follows:
#include "main.h"
#include "tos_k.h"
k_task_t task, led_task;
k_stack_t task_stack[1024], task_stack_led[1024];
void test_task(void *Parameter)
{
while(1)
{
printf("hello tobuandOS\r\n");
tos_task_delay(1000);
}
}
void led_task_entry(void *Parameter)
{
while(1)
{
BSP_LED_Toggle();
tos_task_delay(500);
}
}
/******************************************************************************
*@brief : main program
*@param : none
*@return: none
******************************************************************************/
int main(void)
{
uint32_t count=0;
k_err_t err;
HAL_Init();
SystemClock_Config();
BSP_UART_Init();
BSP_LED_Init();
tos_knl_init();
err = tos_task_create(&task, "task1",test_task,NULL, 2, task_stack,1024,20);
err = tos_task_create(&led_task, "task_led",led_task_entry,NULL, 2, task_stack_led,1024,20);
tos_knl_start();
// BSP_LED_On();
// HAL_Delay(500);
// BSP_LED_Off();
//
// while(1)
// {
// BSP_LED_Toggle();
// HAL_Delay(500);
// printfS("%d\r\n",count++);
//
// };
}
【Effect】
After compiling and downloading to the development board, you can see the onboard LED light flashing regularly, and the serial port assistant also prints:
[Experience] Hangxin Technology provides very good project templates, making it very easy to get started. I saw that they don't have a template for the operating system, so I'll add it here. If they need it, they can add it to the project in the future. The official can contact me. Here is the transplanted project:
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