TSC2101 - Revision history

JulienB: imxssi has now a dedicated page

2010-01-04T09:30:59Z

imxssi has now a dedicated page

@@ Line 40: / Line 40: @@
 ==SSI test tool==
-Use a special release of tsc2102 driver and imxssi for audio development purpose.
+[[imxssi]]
 ==Links==

JulienB: /* Introduction */

2009-12-29T16:38:49Z

Introduction

← Older revision		Revision as of 18:38, 29 December 2009
Line 3:		Line 3:
	==Introduction==		==Introduction==

	This chip is a "SMART" 4-Wire Touch Screen Controller with Stereo DAC (Audio Out), Mono ADC (Audio In) and HP Amplifier. It is used on the [[~~APF27~~]] development board.		This chip is a "SMART" 4-Wire Touch Screen Controller with Stereo DAC (Audio Out), Mono ADC (Audio In) and HP Amplifier. It is used on the [[APF27Dev]] development board.

	==Hardware interface with the i.MX27==		==Hardware interface with the i.MX27==

JulienB: /* SSI test tool */

2009-12-21T11:22:53Z

SSI test tool

← Older revision		Revision as of 13:22, 21 December 2009
Line 68:		Line 68:
	just use imxssi with three parameters:		just use imxssi with three parameters:
	<pre class="apf">		<pre class="apf">
	# imxssi [-t=type] [-l=level] [-s=samples]		# imxssi [-t type] [-l level] [-s samples] [--loop]
	</pre>		</pre>
	* type can be 0: triangular signal or 1: sinusoïdal signal		* type can be 0: triangular signal or 1: sinusoïdal signal
Line 76:		Line 76:
	For example to produce a 300Hz 5v(pk-pk) sinusoid:		For example to produce a 300Hz 5v(pk-pk) sinusoid:
	<pre class="apf">		<pre class="apf">
	# imxssi -t=1 -s=50 -l=0.15		# imxssi -t 1 -s 50 -l 0.15
	</pre>		</pre>

JulienB: /* SSI test tool */

2009-12-21T10:59:13Z

SSI test tool

← Older revision		Revision as of 12:59, 21 December 2009
Line 68:		Line 68:
	just use imxssi with three parameters:		just use imxssi with three parameters:
	<pre class="apf">		<pre class="apf">
	# imxssi ~~param1 param2 param3~~		# imxssi [-t=type] [-l=level] [-s=samples]
	</pre>		</pre>
	* ~~param1~~ can be 0: triangular signal or 1: sinusoïdal signal		* type can be 0: triangular signal or 1: sinusoïdal signal
	* ~~param2~~: period of the signal in number of samples per channel		* samples: period of the signal in number of samples per channel
	* ~~param3~~: Signal level coefficient [0.0 .. 1.0]		* level: Signal level coefficient [0.0 .. 1.0]

	For example to produce a 300Hz 5v(pk-pk) sinusoid:		For example to produce a 300Hz 5v(pk-pk) sinusoid:
	<pre class="apf">		<pre class="apf">
	# imxssi 1 50 0.15		# imxssi -t=1 -s=50 -l=0.15
	</pre>		</pre>

JulienB at 09:32, 21 December 2009

2009-12-21T09:32:30Z

← Older revision		Revision as of 11:32, 21 December 2009
Line 61:		Line 61:
	* Linux: Load tsc driver		* Linux: Load tsc driver
	<pre class="apf">		<pre class="apf">
	modprobe tsc2102		# modprobe tsc2102
	</pre>		</pre>

Line 68:		Line 68:
	just use imxssi with three parameters:		just use imxssi with three parameters:
	<pre class="apf">		<pre class="apf">
	# ~~imxregs~~ param1 param2 param3		# imxssi param1 param2 param3
	</pre>		</pre>
	* param1 can be 0: triangular signal or 1: sinusoïdal signal		* param1 can be 0: triangular signal or 1: sinusoïdal signal

JulienB: /* SSI test tool */

2009-12-21T09:30:56Z

SSI test tool

← Older revision		Revision as of 11:30, 21 December 2009
Line 40:		Line 40:

	==SSI test tool==		==SSI test tool==
	Use a special release of tsc2102 driver and imxssi for audio development purpose. ~~Available under buildroot~~ menuconfig->~~hardware~~-~~handling~~		Use a special release of tsc2102 driver and imxssi for audio development purpose.
			<pre class="host">
			$ make menuconfig
			</pre>
			<pre class="config">
			Package Selection for the target --->
			Armadeus specific tools/utilities --->
			[*] imxssi
			</pre>

	* Requirements:		* Requirements:
Line 46:		Line 54:
	FS rate: 32KHz<br>		FS rate: 32KHz<br>

	* ~~uboot~~: Enable register ~~debug~~ from u-~~boot~~:		* U-Boot: Enable i.MX register access from user space in U-Boot:
	BIOS> ~~mw.l 0x00200008 0~~		<pre class="apf">
	~~BIOS~~> ~~mw.l 0x00210008 0~~		BIOS> run unlock_regs
			</pre>

	* ~~linux~~: Load ~~spi/~~tsc ~~drivers~~		* Linux: Load tsc driver
	~~modprobe spi_imx~~		<pre class="apf">
	modprobe tsc2102		modprobe tsc2102
			</pre>

	* imxssi: generate ssi signal		* imxssi: generate ssi signal
	Special release of imxssi can generate an audio signal.<br>		Special release of imxssi can generate an audio signal.<br>
	just use imxssi with three parameters:		just use imxssi with three parameters:
			<pre class="apf">
	# imxregs param1 param2 param3		# imxregs param1 param2 param3
	param1 can be 0: triangular signal or 1: sinusoïdal signal~~.<br>~~		</pre>
	param2: period of the signal in number of samples per channel~~.<br>~~		* param1 can be 0: triangular signal or 1: sinusoïdal signal
	param3: Signal level coefficient [0.0 .. 1.0]~~.<br>~~		* param2: period of the signal in number of samples per channel
			* param3: Signal level coefficient [0.0 .. 1.0]

	For example to produce a 300Hz 5v(pk-pk) sinusoid:		For example to produce a 300Hz 5v(pk-pk) sinusoid:
			<pre class="apf">
	# imxssi 1 50 0.15		# imxssi 1 50 0.15
			</pre>

	* next step: dma transfer		* next step: dma transfer

JulienB at 12:49, 9 November 2009

2009-11-09T12:49:26Z

← Older revision		Revision as of 14:49, 9 November 2009
Line 74:		Line 74:

	[[Category:UserInput]]		[[Category:UserInput]]
			[[Category:Touchscreen]]
	[[Category:Audio]]		[[Category:Audio]]

VeroniqueL at 15:03, 1 September 2009

2009-09-01T15:03:14Z

← Older revision		Revision as of 17:03, 1 September 2009
Line 1:		Line 1:
	~~Informations~~ about the hardware interface between the i.MX27 and the TSC2101.		Information about the hardware interface between the i.MX27 and the TSC2101.

	==Introduction==		==Introduction==
Line 17:		Line 17:
	{\| border="1" cellpadding="5" cellspacing="0" summary="Signal connections"		{\| border="1" cellpadding="5" cellspacing="0" summary="Signal connections"
	\|- style="background:#efefef;"		\|- style="background:#efefef;"
	! ''' i.MX27 ''' \|\| ''' TSC2101 ''' \|\| '''~~Functionnality~~'''		! ''' i.MX27 ''' \|\| ''' TSC2101 ''' \|\| '''Functionality'''
	\|----------------		\|----------------
	\| SPI2_SCLK/'''REV''' \|\| SCLK \|\| SPI clock		\| SPI2_SCLK/'''REV''' \|\| SCLK \|\| SPI clock

JulienB: creation (copy from tsc2102)

2008-12-15T14:40:54Z

creation (copy from tsc2102)

New page

Informations about the hardware interface between the i.MX27 and the TSC2101.

==Introduction==

This chip is a "SMART" 4-Wire Touch Screen Controller with Stereo DAC (Audio Out), Mono ADC (Audio In) and HP Amplifier. It is used on the [[APF27]] development board.

==Hardware interface with the i.MX27==
===Touchscreen===
Configuration and data exchange is done through the SPI bus n°2 (SPI2). 
The SPI 2 port is shared with the LCD interface of the i.MXL (these signals are present on the DevLight V2 LCD connector).

===Audio===
Configuration is done through SPI2 bus and audio data exchange through SSIA

===Signals===

{| border="1" cellpadding="5" cellspacing="0" summary="Signal connections"
|- style="background:#efefef;"
! ''' i.MX27 ''' || ''' TSC2101 ''' || '''Functionnality'''
|----------------
| SPI2_SCLK/'''REV''' || SCLK || SPI clock
|----------------
| SPI2_TXD/'''SPL_SPR''' || MOSI || SPI MasterOut SlaveIn
|----------------
| SPI2_RXD_1/'''PS''' || MISO || SPI MasterIn SlaveOut
|----------------
| PortB 17/'''SSI1_TXDAT''' || SSn || SPI Chip select
|----------------
| SPI2_SS/PortD 8/'''CLS''' || PINT/DAVn || Interrupt
|----------------
| Reset (on Reset switch) || RESETn || Global reset signal
|-
|}
'''Remark:'''
* i.MX27 SPI Chip Select signals are not used by Linux SPI infrastructure; it needs multiple chip select (one for each chip connected on the bus), and so GPIOs are used for that purpose.
* Chip interrupt is on Port D because Port B has already some and interrupt are shared on the same port.

==Drivers==
* [[TSC2102 Linux driver| TSC2102 Linux driver details ]]

==SSI test tool==
Use a special release of tsc2102 driver and imxssi for audio development purpose. Available under buildroot menuconfig->hardware-handling

* Requirements:
TSC2102 mclk: 16MHZ 
FS rate: 32KHz 

* uboot: Enable register debug from u-boot:
BIOS> mw.l 0x00200008 0
BIOS> mw.l 0x00210008 0

* linux: Load spi/tsc drivers
modprobe spi_imx
modprobe tsc2102

* imxssi: generate ssi signal
Special release of imxssi can generate an audio signal. 
just use imxssi with three parameters:
# imxregs param1 param2 param3
param1 can be 0: triangular signal or 1: sinusoïdal signal. 
param2: period of the signal in number of samples per channel. 
param3: Signal level coefficient [0.0 .. 1.0]. 

For example to produce a 300Hz 5v(pk-pk) sinusoid:
# imxssi 1 50 0.15

* next step: dma transfer

==Links==
* [http://focus.ti.com/docs/prod/folders/print/tsc2101.html TSC2101 Web page at Texas Instruments]
 

{{LanguageBar|TSC2101|TSC2101|TSC2101}}

[[Category:UserInput]]
[[Category:Audio]]