DAC - Revision history

JulienB at 21:56, 27 October 2009

2009-10-27T21:56:36Z

2009-10-27T21:05:04Z

‎Installation

2009-08-04T15:40:44Z

‎Usage

2009-08-04T15:38:19Z

move installation

2008-11-20T10:33:31Z

‎Linux

2008-11-20T10:30:06Z

‎Installation

2008-11-18T22:03:12Z

2008-10-10T10:47:25Z

‎Buildroot

2008-05-29T18:34:20Z

‎Links

2007-05-08T17:21:16Z

‎Links

← Older revision		Revision as of 21:56, 27 October 2009
Line 1:		Line 1:
−	The [[Max5821 \| Max5821L DAC]] can be controlled from the user space by using the '''setDAC''' function.	+	The [[Max5821 \| Max5821L DAC]] can be controlled from the user space by using the '''setDAC''' function. No special driver is needed except the i2c host one, which is statically built into the kernel.

	==Installation==		==Installation==

@@ Line 2: / Line 2: @@
 ==Installation==
-Not needed on latest versions (> Armadeus 3.0). Informations are kept [[Talk:DAC|here]].
+Not needed on latest versions (> Armadeus 3.0): the tool is installed by default. Informations are kept [[Talk:DAC|here]].
 ==Usage==

@@ Line 5: / Line 5: @@
 ==Usage==
-to set the DAC use the '''setDAC''' command:
+To set the DAC outputs to a given value, use the ''setDAC'' command:
   # setDAC
@@ Line 16: / Line 17: @@
    If no VALUE is given, then the output is powered down
   ##
-'''!! Do not forget to connect a voltage reference for the DAC !!'''
+{{Warning|Do not forget to connect a voltage reference for the DAC !!}}
 ==Links==

@@ Line 1: / Line 1: @@
 The [[Max5821 | Max5821L DAC]] can be controlled from the user space by using the '''setDAC''' function.
-==Installation (not necessary on latest version)==
+==Installation==
-===Linux===
+Not needed on latest versions (> Armadeus 3.0). Informations are kept [[Talk:DAC|here]].
-Activate the necessary I2C drivers in the Linux kernel configuration (modules or builtin):
-−
- Device Drivers  ---> <*> I2C support  ---> <*>   I2C device interface
- Device Drivers  ---> <*> I2C support  ---> I2C Hardware Bus support  ---> <*> i2c bus on i.MX
-−
-'''By default I2C drivers are builtin in Armadeus Linux kernel'''
-−
-===Buildroot===
-You must enable the '''max5821ctrl''' package into your buildroot configuration:<br>
-Package Selection for the target->Hardware handling->max5821ctrl
-−
-−
-If you are using modules instead of builtin linux drivers, you can check if the modules are loaded with:
- # lsmod
- i2c_imx                 4008  0
- i2c_dev                 5024  0
- i2c_core               11472  2 i2c_imx,i2c_dev
 ==Usage==

@@ Line 5: / Line 5: @@
 Activate the necessary I2C drivers in the Linux kernel configuration (modules or builtin):
-* -> Device Drivers
+ Device Drivers  ---> <*> I2C support  ---> <*>   I2C device interface
-* -> I2C support
+ Device Drivers  ---> <*> I2C support  ---> I2C Hardware Bus support  ---> <*> i2c bus on i.MX
-* -> I2C support -> I2C device interface
-* -> I2C support -> I2C Hardware Bus support -> I2C bus on i.MX
 '''By default I2C drivers are builtin in Armadeus Linux kernel'''

← Older revision		Revision as of 18:34, 29 May 2008
Line 41:		Line 41:
	* [[Max5821\|How to connect Max5821 on your board]]		* [[Max5821\|How to connect Max5821 on your board]]
	* [http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3288 Max5821 Webpage]		* [http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3288 Max5821 Webpage]
		+
		+	[[Category:Linux drivers]]

← Older revision		Revision as of 17:21, 8 May 2007
Line 39:		Line 39:

	==Links==		==Links==
		+	* [[Max5821\|How to connect Max5821 on your board]]
	* [http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3288 Max5821 Webpage]		* [http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3288 Max5821 Webpage]