Hi, I am facing trouble in loading snapshot trace on tracealyzer, a warning pops up saying “the trace does not have a frequency set. only sequential mode and native ticks can be used for tracing”. refer the attachment for the warning.
These are more details on the environment i am using:
Kernel : FreeRTOS version 10.1.1 with LWIP 2.1.1
IDE : Vitis 2019 version
Hardware : Zynq xc7z020 SOC
Please help me understand the warning shown in the attachemnt.
Hi,
There are a few different options why this might fail.
Make sure that your call to vTraceEnable(TRC_START) is done after clock initialization in main.
The frequency is set by:
RecorderDataPtr->frequency = (TRC_HWTC_FREQ_HZ) / (TRC_HWTC_DIVISOR);
so do some macro expansions to check the values.
In the HW port for CortexA9 that you should use this expands to: #define TRC_HWTC_DIVISOR 1 #define TRC_HWTC_FREQ_HZ (TRC_TICK_RATE_HZ * TRC_HWTC_PERIOD) #define TRC_TICK_RATE_HZ configTICK_RATE_HZ
configTICK_RATE_HZ should be defined in FreeRTOSConfig.h
