Software - Revision history

Sgonzo at 09:28, 8 August 2012

2012-08-08T09:28:09Z

← Older revision		Revision as of 11:28, 8 August 2012
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	\|4. show if GPIO is used as an input or an output: <code>''cat direction''</code>		\|4. show if GPIO is used as an input or an output: <code>''cat direction''</code>
	\|-		\|-
	\|5. <code>''~~out~~''</code>		\|5. change output to '1'=high: <code>''echo 1 >value''</code>
	\|-		\|-
	\|6. change ~~output~~ to ~~'1'=high~~: <code>''echo 1 >~~value~~''</code>		\|6. change GPIO to input: <code>''echo in >direction''</code>
	\|-		\|-
	\|7~~. change GPIO to input: <code>''echo in >direction''</code>~~		\|7. show input value: <code>''cat value''</code>
	\|-
	\|8. show input value: <code>''cat value~~''</code>~~
	\|-
	~~\|9. '0' = low: <code>''0~~''</code>
	\|}		\|}

Sgonzo at 09:26, 8 August 2012

2012-08-08T09:26:36Z

← Older revision		Revision as of 11:26, 8 August 2012
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	How to control a GPIO:		How to control a GPIO:

	cd /sys/class/gpio		:{\| class="wikitable"
	echo 44 >export /~~/ create new directory~~		\|1. <code>''cd /sys/class/gpio''</code>
	~~cd gpio44 //~~ go into this directory		\|-
	~~cat direction //~~ show if GPIO is used as an input or an output		\|2. create new directory: <code>''echo 44 >export ''</code>
	~~out~~		\|-
	~~echo 1~~ >~~value /~~/ change output to '1'=high		\|3. go into this directory: <code>''cd gpio44''</code>
	echo in >~~direction /~~/ change GPIO to input		\|-
	cat value /~~/ show input value~~		\|4. show if GPIO is used as an input or an output: <code>''cat direction''</code>
	~~0 //~~ '0' = low		\|-
			\|5. <code>''out''</code>
			\|-
			\|6. change output to '1'=high: <code>''echo 1 >value''</code>
			\|-
			\|7. change GPIO to input: <code>''echo in >direction''</code>
			\|-
			\|8. show input value: <code>''cat value''</code>
			\|-
			\|9. '0' = low: <code>''0''</code>
			\|}

	==PLD==		==PLD==

Sgonzo at 10:46, 9 July 2012

2012-07-09T10:46:38Z

← Older revision		Revision as of 12:46, 9 July 2012
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	You have to download the *.jed-File with the programmer to your PLD.		You have to download the *.jed-File with the programmer to your PLD.

	~~[[File:VHDL-Code.jpg]]~~


	In the constraint editor of ispLEVER you can define, which input X_VAR1 is.		In the constraint editor of ispLEVER you can define, which input X_VAR1 is.
	In this example GPIO E is defined as X_VAR1. If you define GPIO E as an		In this example GPIO E is defined as X_VAR1. If you define GPIO E as an
	output and set GPIO E high, the PLD LED should flash red.		output and set GPIO E high, the PLD LED should flash red.
			[[File:VHDL-Code.jpg]]

Sgonzo at 10:39, 9 July 2012

2012-07-09T10:39:43Z

← Older revision		Revision as of 12:39, 9 July 2012
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	You also need a programmer (e.g. HW-USBN-2A from Lattice)		You also need a programmer (e.g. HW-USBN-2A from Lattice) to deploy the VHDL-Code on your PLD.

	After installing the software and the drivers for your programmer you can start a new project.		After installing the software and the drivers for your programmer you can start a new project.

Sgonzo at 10:26, 9 July 2012

2012-07-09T10:26:46Z

← Older revision		Revision as of 12:26, 9 July 2012
Line 32:		Line 32:

	You have to download the *.jed-File with the programmer to your PLD.		You have to download the *.jed-File with the programmer to your PLD.

	[[File:VHDL-Code.jpg]]		[[File:VHDL-Code.jpg]]


			In the constraint editor of ispLEVER you can define, which input X_VAR1 is.
			In this example GPIO E is defined as X_VAR1. If you define GPIO E as an
			output and set GPIO E high, the PLD LED should flash red.

Sgonzo at 10:23, 9 July 2012

2012-07-09T10:23:08Z

← Older revision		Revision as of 12:23, 9 July 2012
Line 32:		Line 32:

	You have to download the *.jed-File with the programmer to your PLD.		You have to download the *.jed-File with the programmer to your PLD.
			[[File:VHDL-Code.jpg]]

Sgonzo at 10:17, 9 July 2012

2012-07-09T10:17:51Z

← Older revision		Revision as of 12:17, 9 July 2012
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	===Programming example===		===Programming example===
	You can find a demo-project here:[[media:PLD-demo.zip]]		You can find a demo-project here:[[media:PLD-demo.zip]]

			You have to download the *.jed-File with the programmer to your PLD.

Sgonzo at 10:16, 9 July 2012

2012-07-09T10:16:28Z

← Older revision		Revision as of 12:16, 9 July 2012
Line 29:		Line 29:
	After installing the software and the drivers for your programmer you can start a new project.		After installing the software and the drivers for your programmer you can start a new project.
	===Programming example===		===Programming example===
	You can find a demo-project here:[[~~File~~:PLD-demo.zip]]		You can find a demo-project here:[[media:PLD-demo.zip]]

Sgonzo at 10:14, 9 July 2012

2012-07-09T10:14:50Z

← Older revision		Revision as of 12:14, 9 July 2012
Line 29:		Line 29:
	After installing the software and the drivers for your programmer you can start a new project.		After installing the software and the drivers for your programmer you can start a new project.
	===Programming example===		===Programming example===
	You can find a demo-project here:		You can find a demo-project here:[[File:PLD-demo.zip]]

Sgonzo at 10:03, 9 July 2012

2012-07-09T10:03:00Z

← Older revision		Revision as of 12:03, 9 July 2012
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	~~Im Folgenden werden die~~ GPIOs ~~aufgelistet, und deren Nummer, unter welcher Sie im Linux angeprochen werden können.~~		==GPIOs==

			===Mapping===
			In the following sheet you can find the GPIOs and their linux-number
	[[File:GPIOs.jpg]]		[[File:GPIOs.jpg]]

	~~Folgendermaßen kann ein~~ GPIO ~~unter Linux angesteuert werden~~:		===Control===

			How to control a GPIO:

	cd /sys/class/gpio		cd /sys/class/gpio
	echo 44 >export // ~~lege GPIO A an, ein neues Verzeichnis wird erstellt~~		echo 44 >export // create new directory
	cd gpio44 // ~~wechsle in den neuen Ordner~~		cd gpio44 // go into this directory
	cat direction // ~~zeigt~~ an ~~ob GPIO als Input oder Output verwendet wird~~		cat direction // show if GPIO is used as an input or an output
	out		out
	echo 1 >value // ~~setzt den Ausgang auf~~ '1' = high		echo 1 >value // change output to '1'=high
	echo in >direction // ~~ändert den~~ GPIO ~~zum Input~~		echo in >direction // change GPIO to input
	cat value // ~~zeigt den Wert an, der am GPIO anliegt~~		cat value // show input value
	0 // '0' = low		0 // '0' = low
			==PLD==

			===Development Software===
			To write your own VDHL-code you can use the ispLEVER Classic Software from Lattice
			([http://www.latticesemi.com/products/designsoftware/ispleverclassic/index.cfm?source=sidebar]


			You also need a programmer (e.g. HW-USBN-2A from Lattice)

			After installing the software and the drivers for your programmer you can start a new project.
			===Programming example===
			You can find a demo-project here: