Quality RTOS & Embedded Software

 Real time embedded FreeRTOS RSS feed 
Quick Start Supported MCUs PDF Books Trace Tools Ecosystem


Loading

vTaskStartTrace() on AVR

Posted by Nobody/Anonymous on January 29, 2007
Hallo,

i'm doing some tests with FreeRTOS on ATMEL AVR (ATmega32) and i have a problem with the vTaskStartTrace() function.

In my main.c i have defined a buffer:
#define BUFFER_SIZE( ( unsigned portSHORT ) 512 )
static portCHAR pcWriteBuffer[BUFFER_SIZE];

I call vTaskStartTrace(pcWriteBuffer, BUFFER_SIZE) in a suicid-task. I think after calling vTaskStartTrace() there shoult be a list in memory on adress pcWriteBuffer. I copied the data on this adress into i file (then hex2bin and tracecon). But the result can't be correct:

1950631244.00000029537
1145392128.00000029537
1145392128.00000024948
1224867890.00000024948
1224867890.00000019524
151614245.00000019524
151614245.00000025381
1965361525.00000025381
1965361525.0000009481
168624138.0000009481
168624138.0000000
43264.0000000
43264.0000000
66304.0000000
66304.0000003
0.0000003
0.0000000
0.0000000
0.0000000
0.0000000

What have i done wrong? I'm new in freertos and also in c, so sorry, if it is my mistake!

Kristian

RE: vTaskStartTrace() on AVR

Posted by Nobody/Anonymous on January 29, 2007
Could it be the endian of the data. I think there is a trace con for big and little endian.

RE: vTaskStartTrace() on AVR

Posted by Nobody/Anonymous on January 30, 2007
I fixed it, but i do not know how. I set the priority of the vTaskStartTrace() calling task to the highest priority. But i think my that this was not my problem ...
Now it looks like this:

13.0000002
25.0000002
25.0000000
26.0000000
26.0000001
27.0000001
27.0000000
28.0000000
28.0000001
29.0000001
29.0000000
30.0000000
30.0000001
31.0000001
31.0000000
32.0000000

Kristian


[ Back to the top ]    [ About FreeRTOS ]    [ Privacy ]    [ Sitemap ]    [ ]


Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.

Latest News

Version 10.1.0 of the FreeRTOS kernel is available for immediate download. MIT licensed.

View a recording of the "OTA Update Security and Reliability" webinar, presented by TI and AWS.


Careers

FreeRTOS and other embedded software careers at AWS.



FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Espressif ESP32

IAR Partner

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers

Renesas

STMicro RTOS partner supporting ARM7, ARM Cortex-M3, ARM Cortex-M4 and ARM Cortex-M0

Texas Instruments MCU Developer Network RTOS partner for ARM and MSP430 microcontrollers

OpenRTOS and SafeRTOS

Xilinx Microblaze and Zynq partner