SAM-BA® ISP - Applets: Initialize Device Clock Tree

Initialize Device Clock Tree (lowlevel)

The lowlevel applet initializes the device clock tree: PLLA, CPU Clock, and Master Clock (MCK).

The lowlevel applet applies to the following devices. Documentation is available in the ../sam-ba/doc/ directory.

Device Documentation
SAM9X60 ../doc/sam9x60.html
SAM9XX5 ../doc/sam9xx5.html
SAMA5D2 Series ../doc/sama5d2.html
SAMA5D3 ../doc/sama5d3.html
SAMA5D4 ../doc/sama5d4.html
SAMV71 ../doc/samv71.html

Additional documentation is located in the ../doc/lowlevel.html document directory.

lowlevel Command Structure

The Initialize Device Clock Tree (lowlevel) applet should be executed prior to executing the Initialize External RAM (extram) applet. The lowlevel applet initializes the external RAM bus clock frequency.

The lowlevel applet has the following command structure:

$ sam-ba -p serial -d <device> -a lowlevel

The lowlevel applet does not require a parameter; with the exception of the SAM9X60 device. In this case, the help parameter shows the available parameters. SAM9X60 presets are listed in the ../doc/lowlevel.html document directory.

$ sam-ba -p serial -d sam9x60 -a lowlevel:help

Syntax: lowlevel:[<preset>]
    preset  System clock configuration
    lowlevel    use default board settings if defined, preset 0 otherwise
    lowlevel:0  use preset 0 for system clock configuration
© 2024 Microchip Technology, Inc.
Notice: ARM and Cortex are the registered trademarks of ARM Limited in the EU and other countries.
Information contained on this site regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.