70 lines
2.5 KiB
C
70 lines
2.5 KiB
C
/*********************************************************************
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* SEGGER Microcontroller GmbH *
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* Solutions for real time microcontroller applications *
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**********************************************************************
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* *
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* (c) 1995 - 2018 SEGGER Microcontroller GmbH *
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* *
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* www.segger.com Support: support@segger.com *
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* *
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**********************************************************************
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--------- END-OF-HEADER --------------------------------------------
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File : Main_RTT_SpeedTestApp.c
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Purpose : Sample program for measuring RTT performance.
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*/
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#include "RTOS.h"
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#include "BSP.h"
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#include "SEGGER_RTT.h"
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#include <stdio.h>
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OS_STACKPTR int StackHP[128], StackLP[128]; /* Task stacks */
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OS_TASK TCBHP, TCBLP; /* Task-control-blocks */
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static void HPTask(void) {
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while (1) {
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//
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// Measure time needed for RTT output
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// Perform dummy write with 0 characters, so we know the overhead of toggling LEDs and RTT in general
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//
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// Set BP here. Then start sampling on scope
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BSP_ClrLED(0);
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SEGGER_RTT_Write(0, 0, 0);
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BSP_SetLED(0);
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BSP_ClrLED(0);
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SEGGER_RTT_Write(0, "01234567890123456789012345678901234567890123456789012345678901234567890123456789\r\n", 82);
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BSP_SetLED(0);
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// Set BP here. Then stop sampling on scope
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OS_Delay(200);
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}
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}
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static void LPTask(void) {
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while (1) {
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BSP_ToggleLED(1);
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OS_Delay (500);
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}
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}
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/*********************************************************************
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*
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* main
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*
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*********************************************************************/
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int main(void) {
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OS_IncDI(); /* Initially disable interrupts */
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OS_InitKern(); /* Initialize OS */
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OS_InitHW(); /* Initialize Hardware for OS */
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BSP_Init(); /* Initialize LED ports */
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BSP_SetLED(0);
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/* You need to create at least one task before calling OS_Start() */
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OS_CREATETASK(&TCBHP, "HP Task", HPTask, 100, StackHP);
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OS_CREATETASK(&TCBLP, "LP Task", LPTask, 50, StackLP);
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OS_Start(); /* Start multitasking */
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return 0;
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}
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