COM AM335x Linux - Revision history

Lzenz: /* Serial (UART) Interfaces */

2016-09-29T11:36:19Z

Serial (UART) Interfaces

← Older revision		Revision as of 13:36, 29 September 2016
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	=== Serial (UART) Interfaces ===		=== Serial (UART) Interfaces ===
	:{\| class="wikitable" style="width: ~~400px~~"		:{\| class="wikitable" style="width: 600px"
	\|\|~~DHCOM UART~~ 1 ~~(Rx Tx Rts Cts)~~\|\|~~<code>/dev/ttyO0</code~~>		!Interface \|\| Kernel 4.1.x \|\| Kernel > 4.4.x
	\|-		\|-
	\|\|DHCOM UART 2 (Rx Tx) \|\|<code>/dev/~~ttyO1~~</code>		\|\|DHCOM UART 1 (Rx Tx Rts Cts)\|\|<code>/dev/ttyO0</code> \|\|<code>/dev/ttyS0</code>
	\|-		\|-
	\|\|DHCOM UART 3 \|\| not available		\|\|DHCOM UART 2 (Rx Tx) \|\|<code>/dev/ttyO1</code> \|\|<code>/dev/ttyS1</code>
			\|-
			\|\|DHCOM UART 3 \|\| not available \|\| not available
	\|}		\|}

Lzenz: /* How to build a Kernel */

2016-07-19T12:20:56Z

How to build a Kernel

← Older revision		Revision as of 14:20, 19 July 2016
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	2. <tt># ''git clone [https://github.com/dh-electronics/linux-am33x.git https://github.com/dh-electronics/linux-am33x.git]''</tt><br/>		2. <tt># ''git clone [https://github.com/dh-electronics/linux-am33x.git https://github.com/dh-electronics/linux-am33x.git]''</tt><br/>
	3. <tt># ''cd linux-am33x''</tt><br/>		3. <tt># ''cd linux-am33x''</tt><br/>
	4. <tt># ''git checkout release/~~20160219~~'' # checkout latest/required release branch</tt>		4. <tt># ''git checkout release/20160719'' # checkout latest/required release branch</tt>
	\|}		\|}
	Configure and build the kernel using 5 threads and a build directory		Configure and build the kernel using 5 threads and a build directory

Lzenz: /* How to build a Kernel */

2016-03-22T15:31:25Z

How to build a Kernel

← Older revision		Revision as of 17:31, 22 March 2016
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	4. <tt># ''git checkout release/20160219'' # checkout latest/required release branch</tt>		4. <tt># ''git checkout release/20160219'' # checkout latest/required release branch</tt>
	\|}		\|}
	Configure and build the kernel using 5 threads in a ~~separate~~ build directory		Configure and build the kernel using 5 threads and a build directory
	{\| class="wikitable" style="width: 100%; color: #000000; background: #ffffff;" \|		{\| class="wikitable" style="width: 100%; color: #000000; background: #ffffff;" \|
	\|		\|

Lzenz: /* Initialize and Test CAN Interface */

2016-03-22T15:30:09Z

Initialize and Test CAN Interface

← Older revision		Revision as of 17:30, 22 March 2016
Line 233:		Line 233:

	:Get can-utils:		:Get can-utils:
	:* [[media:can-utils_armel.zip\|Debian package containing can-utils (ARM)]]		:* Debian Jessie (armhf): <tt> apt-get install can-utils </tt>
			:* Debian Squeeze (armel):[[media:can-utils_armel.zip\|Debian package containing can-utils (ARM)]]

	=== Configure your own display ===		=== Configure your own display ===

Lzenz: /* Configure your own display */

2016-03-22T13:52:27Z

Configure your own display

← Older revision		Revision as of 15:52, 22 March 2016
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	1. Type in the display values into the device tree file <tt>[https://github.com/dh-electronics/linux-am33x/blob/release/20160219/arch/arm/boot/dts/am335x-dhcom.dtsi arch/arm/boot/dts/am335x-dhcom.dtsi]</tt>		1. Type in the display values into the device tree file <tt>[https://github.com/dh-electronics/linux-am33x/blob/release/20160219/arch/arm/boot/dts/am335x-dhcom.dtsi arch/arm/boot/dts/am335x-dhcom.dtsi]</tt>
	:*Where in the file?		*Where in the file?

	::{\|		:{\|
	\|style="width: 8em"\|Parallel display:\|\|<tt>&panel</tt>		\|style="width: 8em"\|Parallel display:\|\|<tt>&panel</tt>
	\|}		\|}

	:*How?		*How?
	::Here is an example:		::Here is an example:
	::{\|		::{\|
	\|<~~code~~>		\|<tt>
	display-timings {		display-timings {
	DataImage_7inch_FG0700G3DSSW {		DataImage_7inch_FG0700G3DSSW {
Line 266:		Line 266:
	pixelclk-active = <1>;		pixelclk-active = <1>;
	};		};
	};		}; </tt>
	</~~code~~>
	\|}		\|}
	2. Build the ~~device tree~~ dtb files <tt>ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make dtbs</tt>
	3. Copy the dtb files into your /boot partition <tt>/dtbs</tt> (SD, µSD, eMMC, or NAND)		2. Build the devicetree dtb files <tt>ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make dtbs</tt><br/>
			3. Copy the dtb files into your <tt>/boot</tt> partition <tt>/dtbs</tt> (SD, µSD, eMMC, or NAND)

	== Additional Information ==		== Additional Information ==
	*[[Linux Kernel Features \| Linux Kernel Features ]]		*[[Linux Kernel Features \| Linux Kernel Features ]]
	*[[ELBE Overview\| Embedded Linux Build Environment (ELBE)]]		*[[ELBE Overview\| Embedded Linux Build Environment (ELBE)]]

Lzenz: /* How to build a Kernel */

2016-03-22T13:46:26Z

How to build a Kernel

← Older revision		Revision as of 15:46, 22 March 2016
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	\|		\|
	5. <tt># ''mkdir ../build''</tt><br/>		5. <tt># ''mkdir ../build''</tt><br/>
	6. <tt># ''ARCH=arm CROSS_COMPILE=arm~~-none~~-linux-~~gnueabi~~- make O=../build/ am335x_dhcom_defconfig''</tt><br/>		6. <tt># ''ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make O=../build/ am335x_dhcom_defconfig''</tt><br/>
	7. <tt># ''ARCH=arm CROSS_COMPILE=arm~~-none~~-linux-~~gnueabi~~- make O=../build/ menuconfig''</tt> (optional: Add/Remove Kernel Features)<br/>		7. <tt># ''ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make O=../build/ menuconfig''</tt> (optional: Add/Remove Kernel Features)<br/>
	8. <tt># ''ARCH=arm CROSS_COMPILE=arm~~-none~~-linux-~~gnueabi~~- make -j5 O=../build/ zImage''</tt><br/>		8. <tt># ''ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make -j5 O=../build/ zImage''</tt><br/>
	9. <tt># ''ARCH=arm CROSS_COMPILE=arm~~-none~~-linux-~~gnueabi~~- make -j5 O=../build/ dtbs''</tt><br/>		9. <tt># ''ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make -j5 O=../build/ dtbs''</tt><br/>
	\|}		\|}
	* Your new <tt>zImage</tt> file is available in <tt>../build/arch/arm/boot</tt>		* Your new <tt>zImage</tt> file is available in <tt>../build/arch/arm/boot</tt>

Lzenz: /* Configure your own display */

2016-03-22T13:45:19Z

Configure your own display

← Older revision		Revision as of 15:45, 22 March 2016
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	=== Configure your own display ===		=== Configure your own display ===

	:To ~~configure~~ your ~~own~~ display ~~you have to do the following~~ steps:		To customize the devicetree to support your display please follow these steps:

	:1. Type in the display values into the device tree file <~~code~~>[https://github.com/dh-electronics/linux-~~imx6qdl~~/blob/~~master~~/arch/arm/boot/dts/~~imx6qdl~~-~~dheva01~~.dtsi /arch/arm/boot/dts/~~imx6qdl~~-~~dheva01~~.dtsi]</~~code~~>		1. Type in the display values into the device tree file <tt>[https://github.com/dh-electronics/linux-am33x/blob/release/20160219/arch/arm/boot/dts/am335x-dhcom.dtsi arch/arm/boot/dts/am335x-dhcom.dtsi]</tt>
	::*Where in the file?		:*Where in the file?

	:::{\|		::{\|
	\|style="width: 8em"\|Parallel display:\|\|<~~code>display@di0</code>~~		\|style="width: 8em"\|Parallel display:\|\|<tt>&panel</tt>
	\|-
	~~\|style="width: 8em"\|LVDS display:\|\|<code~~>&~~ldb~~</~~code~~>
	\|-
	~~\|colspan="2"\|Remarks: If you don't want to use both interfaces comment the unwanted out! The frame buffer resolution depends on the higher display resolution of both displays~~
	\|}		\|}

	::*How?		:*How?
	:::Here is an example:		::Here is an example:
	:::{\|		::{\|
	\|<code>		\|<code>
	display-timings {		display-timings {
Line 273:		Line 269:
	</code>		</code>
	\|}		\|}
	:2. Build the device tree dtb files <~~code~~>ARCH=arm CROSS_COMPILE=arm~~-none~~-linux-~~gnueabi~~- make dtbs</~~code~~>		2. Build the device tree dtb files <tt>ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make dtbs</tt>
	:3. Copy the dtb files ~~onto~~ your boot partition <~~code~~>/dtbs</~~code~~> (SD, µSD or ~~eMMC~~)		3. Copy the dtb files into your /boot partition <tt>/dtbs</tt> (SD, µSD, eMMC, or NAND)
	~~:The built <code>imx6xx-dheva01.dtb</code> device tree files will you find in <code>arch/arm/boot/dts</code>~~

	== Additional Information ==		== Additional Information ==
	*[[Linux Kernel Features \| Linux Kernel Features ]]		*[[Linux Kernel Features \| Linux Kernel Features ]]
	*[[ELBE Overview\| Embedded Linux Build Environment (ELBE)]]		*[[ELBE Overview\| Embedded Linux Build Environment (ELBE)]]

Lzenz: /* Control the display brightness */

2016-03-22T13:36:33Z

Control the display brightness

← Older revision		Revision as of 15:36, 22 March 2016
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	:{\|class="wikitable" style="width: 600px"		:{\|class="wikitable" style="width: 600px"
	\|-		\|-
	\| <tt>echo [0..8] > /sys/class/backlight/backlight/brightness</tt>		\| ''<tt>echo [0..8] > /sys/class/backlight/backlight/brightness</tt>''
	\|}		\|}

Lzenz: /* Control the display brightness */

2016-03-22T13:36:18Z

Control the display brightness

← Older revision		Revision as of 15:36, 22 March 2016
Line 153:		Line 153:
	:{\|class="wikitable" style="width: 600px"		:{\|class="wikitable" style="width: 600px"
	\|-		\|-
	\|echo [0..8] > /sys/class/backlight/backlight/brightness		\| <tt>echo [0..8] > /sys/class/backlight/backlight/brightness</tt>
	\|}		\|}

Lzenz: /* I2C Interfaces */

2016-03-22T13:29:25Z

I2C Interfaces

← Older revision		Revision as of 15:29, 22 March 2016
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	\|\|On Module Devices \|\|<code>/dev/i2c-0</code>		\|\|On Module Devices \|\|<code>/dev/i2c-0</code>
	\|}		\|}


	=== SPI Interfaces ===		=== SPI Interfaces ===