Difference between revisions of "CL-SOM-iMX7: FreeRTOS: Running Demos"

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(→‎Loading FreeRTOS into memory)
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=== Loading from USB ===
 
 
* Power on the module and stop U-Boot from booting Linux by holding Ctrl-c.
 
* Power on the module and stop U-Boot from booting Linux by holding Ctrl-c.
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* Place image into USB drive, and insert the USB drive into the P6 or P26 USB connector.
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* Place the demo image into USB drive or SD-card, and connect it into the evaluation board.
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* Load image into memory:
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* Use the following U-Boot commands to load the demo image from USB storage:  
 
<pre>
 
<pre>
 
CL-SOM-iMX7 # usb start
 
CL-SOM-iMX7 # usb start
 
CL-SOM-iMX7 # load usb 0 <load_addr> <image_name>
 
CL-SOM-iMX7 # load usb 0 <load_addr> <image_name>
 
</pre>
 
</pre>
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To boot the image, go to [[#Booting FreeRTOS from memory|Booting FreeRTOS from memory]].
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* Use the following U-Boot commands to load the demo image from SD-card:
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=== Loading from MMC ===
 
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* Power on the module and stop U-Boot from booting Linux by holding Ctrl-c.
 
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* Place image into SD-card, and insert the SD-card into the P9 connector.
 
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* Load image into memory:
 
 
<pre>
 
<pre>
 
CL-SOM-iMX7 # mmc dev 0
 
CL-SOM-iMX7 # mmc dev 0
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CL-SOM-iMX7 # load mmc 0 <load_addr> <image_name>
 
CL-SOM-iMX7 # load mmc 0 <load_addr> <image_name>
 
</pre>
 
</pre>
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To boot the image, go to [[#Booting FreeRTOS from memory|Booting FreeRTOS from memory]].
 
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=== Loading from TFTP ===
 
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* Power on the module and stop U-Boot from booting Linux by holding Ctrl-c.
 
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* Setup TFTP as described in the [[Linux: Setting up a development environment]] article, and place the image into the TFTP folder on your workstation.
 
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* Connect CL-SOM-iMX7 to a network using connector P21.
 
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* Load image into memory:
 
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<pre>
 
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CL-SOM-iMX7 # setenv autoload no
 
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CL-SOM-iMX7 # dhcp
 
−
CL-SOM-iMX7 # setenv serverip <your_workstation_ip>
 
−
CL-SOM-iMX7 # tftp <load_addr> <image_name>
 
−
</pre>
 
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To boot the image, go to [[#Booting FreeRTOS from memory|Booting FreeRTOS from memory]].
 
  
 
== Booting FreeRTOS from memory ==
 
== Booting FreeRTOS from memory ==

Revision as of 16:02, 17 July 2017

Introduction

This article describes the process of loading FreeRTOS images into memory, and running the in-memory images. For quick evaluation, the FreeRTOS BSP for CL-SOM-iMX7 comes with precompiled images that can be found under the images folder.

Loading FreeRTOS into memory

A FreeRTOS image must be run from TCM, DDR, or OCRAM, depending on how it was built. Consult the following table for the right <load_addr> to use:

Image name Must run from load_addr
<image_name>.bin TCM 7F8000
<image_name>_ocram.bin OCRAM 910000
<image_name>_ddr.bin DDR 9FF00000
  • Power on the module and stop U-Boot from booting Linux by holding Ctrl-c.
  • Place the demo image into USB drive or SD-card, and connect it into the evaluation board.
  • Use the following U-Boot commands to load the demo image from USB storage:
CL-SOM-iMX7 # usb start
CL-SOM-iMX7 # load usb 0 <load_addr> <image_name>
  • Use the following U-Boot commands to load the demo image from SD-card:
CL-SOM-iMX7 # mmc dev 0
CL-SOM-iMX7 # mmc rescan
CL-SOM-iMX7 # load mmc 0 <load_addr> <image_name>

Booting FreeRTOS from memory

  • Run the image using the following commands:
CL-SOM-iMX7 # dcache flush
CL-SOM-iMX7 # bootaux <load_addr>

See also

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