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→Example #2: RPMsg-based application
The example performs IRQ latency measurements on FreeRTOS side by using a hardware timer. These measures are collected by the counterpart application running on Linux side and shown on console. Plese follow the steps listed below:
* Place all the binary files into the host tftp directory:
** KernelLinux kernel: <code>uImage</code>
** Device Tree: <code>bora.dtb</code>
** First stage bootloader: <code>bora_FSBL.bin</code>
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Linux kernel will print these messages, informing that the communication between the two cores has been established:
<pre>
[ 17.966158] NET: Registered protocol family 41
[ 18.036698] CPU1: shutdown
[ 18.124417] virtio_rpmsg_bus virtio0: creating channel rpmsg-timer-statistic addr 0x50
[ 18.151586] rpmsg_freertos_statistic rpmsg0: new channel: 0x400 -> 0x50!
</pre>
Then run the <code>latencystat</code> application as shown below. The typical output will look like this:
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