Manage Run-Time Emvironment 選擇 RTOS1(API) Keil RTX 的版本

現在最新應該是RTOS2 (API) Keil RTX5，但是這篇是講解API1的….

至於為什麼呢? …..

總之一言難盡，就隨手記著了

上圖黃黃的很苦惱，對，我沒有解掉，因為我想應該是警告我要選 retarget.c、startup_m460.s、startup_m460.c，如下圖所示

但是，如果是拿新唐的BSP project 來改個話，應該本來就有了，這樣會衝突到(重複定義)，所以這邊就姑且先不選，讓她黃。

寫個簡單程式測試

main :

Thread :

Thread1 :

Thread Result

Thread 和 Thread1 就會去搶 CPU 資源，如下:

Synchronize

Signal

設定 osSignalSet (Thread_ID1,0x01); ， 如果 osSignalWait (0x01,osWaitForever); 沒有做完，會在Thread1 裡面一直等到Thread1 做完

Synchronize Signal Result

所以，他一定是整齊的 Thread1 做完換 Thread2， Thread2 做完換 Thread1，達到 Synchronize

/*************************************************************************//**
 * @file     main.c
 * @version  V3.00
 * @brief    A project template for M460 MCU.
 *
 * @copyright SPDX-License-Identifier: Apache-2.0
 * @copyright Copyright (C) 2021 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#include <stdio.h>
#include "NuMicro.h"
#include "cmsis_os.h"

void Thread1 (void const *argument);
void Thread2 (void const *argument);

osThreadDef(Thread1, osPriorityAboveNormal, 1, 0);
osThreadDef(Thread2, osPriorityNormal, 1, 0);

osThreadId Thread_ID1;
osThreadId Thread_ID2;

/*----------------------------------------------------------------------------
  Flash LED 1 when signaled by the Thread2
 *---------------------------------------------------------------------------*/
void Thread1 (void const *argument) {
    for (;;) {
        osSignalWait (0x01,osWaitForever);
        printf("Thread1 \n");
        osSignalWait (0x01,osWaitForever);
    }
}

/*----------------------------------------------------------------------------
  Flash LED two and synchronize the flashing of LED 1 by setting a signal flag
 *---------------------------------------------------------------------------*/
void Thread2 (void const *argument) {
    for (;;) {
        osSignalSet (Thread_ID1,0x01);
        osDelay(5000000);
        printf("Thread2 \n");
        osSignalSet (Thread_ID1,0x01);
        osDelay(5000000);
    }
}

void SYS_Init(void)
{
    /*---------------------------------------------------------------------------------------------------------*/
    /* Init System Clock                                                                                       */
    /*---------------------------------------------------------------------------------------------------------*/

    /* Enable HXT clock */
    CLK_EnableXtalRC(CLK_PWRCTL_HXTEN_Msk);

    /* Wait for HXT clock ready */
    CLK_WaitClockReady(CLK_STATUS_HXTSTB_Msk);

    /* Set PCLK0 and PCLK1 to HCLK/2 */
    CLK->PCLKDIV = (CLK_PCLKDIV_APB0DIV_DIV2 | CLK_PCLKDIV_APB1DIV_DIV2);

    /* Set core clock to 200MHz */
    CLK_SetCoreClock(200000000);

    /* Enable UART0 module clock */
    CLK_EnableModuleClock(UART0_MODULE);

    /* Select UART0 module clock source as HIRC and UART0 module clock divider as 1 */
    CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART0SEL_HIRC, CLK_CLKDIV0_UART0(1));

    /* Set GPB multi-function pins for UART0 RXD and TXD */
    SET_UART0_RXD_PB12();
    SET_UART0_TXD_PB13();
}

/*
 * This is a template project for M460 series MCU. Users could based on this project to create their
 * own application without worry about the IAR/Keil project settings.
 *
 * This template application uses external crystal as HCLK source and configures UART0 to print out
 * "Hello World", users may need to do extra system configuration based on their system design.
 */
int main()
{

    /* Unlock protected registers */
    SYS_UnlockReg();

    SYS_Init();

    /* Init UART to 115200-8n1 for print message */
    UART_Open(UART0, 115200);

    /* Connect UART to PC, and open a terminal tool to receive following message */
    printf("main() Hello World\n");

    osKernelInitialize ();                    // initialize CMSIS-RTOS

    Thread_ID1 = osThreadCreate(osThread(Thread1), NULL);
    Thread_ID2 = osThreadCreate(osThread(Thread2), NULL);
	
    osKernelStart ();                         // start thread execution

}

Mutex

Synchronize Mutex Result

所以，他一定是整齊的 Thread1 做完換 11111， 再換 Thread2 做完換 22222，達到 Synchronize

如果沒有做Synchronize，會112221112… 1跟2 會搶著印。

/*************************************************************************//**
 * @file     main.c
 * @version  V3.00
 * @brief    A project template for M460 MCU.
 *
 * @copyright SPDX-License-Identifier: Apache-2.0
 * @copyright Copyright (C) 2021 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#include <stdio.h>
#include "NuMicro.h"
#include "cmsis_os.h"

void uart_Thread1 (void const *argument);
void uart_Thread2 (void const *argument);
osThreadDef(uart_Thread1, osPriorityNormal, 1, 0);
osThreadDef(uart_Thread2, osPriorityNormal, 1, 0);

osThreadId T_uart1;
osThreadId T_uart2;

osMutexId uart_mutex;
osMutexDef(uart_mutex);

/*----------------------------------------------------------------------------
  Thread two writes the character '1' to UART
*---------------------------------------------------------------------------*/
void uart_Thread1 (void const *argument) {
    uint32_t i;
    for (;;) {
        osMutexWait(uart_mutex, osWaitForever);
				osDelay(5000000);
        printf("11111 ");
        osMutexRelease(uart_mutex);
    }
}
/*----------------------------------------------------------------------------
  Thread two writes the character '2' to UART
*---------------------------------------------------------------------------*/
void uart_Thread2 (void const *argument) {
    uint32_t i;
    for(;;) {
        osMutexWait(uart_mutex, osWaitForever);
				osDelay(3000000);
        printf("22222 ");
        osMutexRelease(uart_mutex);
    }
}

void SYS_Init(void)
{
    /*---------------------------------------------------------------------------------------------------------*/
    /* Init System Clock                                                                                       */
    /*---------------------------------------------------------------------------------------------------------*/

    /* Enable HXT clock */
    CLK_EnableXtalRC(CLK_PWRCTL_HXTEN_Msk);

    /* Wait for HXT clock ready */
    CLK_WaitClockReady(CLK_STATUS_HXTSTB_Msk);

    /* Set PCLK0 and PCLK1 to HCLK/2 */
    CLK->PCLKDIV = (CLK_PCLKDIV_APB0DIV_DIV2 | CLK_PCLKDIV_APB1DIV_DIV2);

    /* Set core clock to 200MHz */
    CLK_SetCoreClock(200000000);

    /* Enable UART0 module clock */
    CLK_EnableModuleClock(UART0_MODULE);

    /* Select UART0 module clock source as HIRC and UART0 module clock divider as 1 */
    CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART0SEL_HIRC, CLK_CLKDIV0_UART0(1));

    /* Set GPB multi-function pins for UART0 RXD and TXD */
    SET_UART0_RXD_PB12();
    SET_UART0_TXD_PB13();
}

/*
 * This is a template project for M460 series MCU. Users could based on this project to create their
 * own application without worry about the IAR/Keil project settings.
 *
 * This template application uses external crystal as HCLK source and configures UART0 to print out
 * "Hello World", users may need to do extra system configuration based on their system design.
 */
int main()
{

    /* Unlock protected registers */
    SYS_UnlockReg();

    SYS_Init();

    /* Init UART to 115200-8n1 for print message */
    UART_Open(UART0, 115200);

    /* Connect UART to PC, and open a terminal tool to receive following message */
    printf("main() Hello World\n");

    osKernelInitialize ();                    // initialize CMSIS-RTOS

    uart_mutex = osMutexCreate(osMutex(uart_mutex));
	
    T_uart1 = osThreadCreate(osThread(uart_Thread1), NULL);
    T_uart2 = osThreadCreate(osThread(uart_Thread2), NULL);

    osKernelStart ();                         // start thread execution



}