Difference between revisions of "User:Pau pajuelo"

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= TODO:  =
 
= TODO:  =
  
−
Update peripheral tutorials, finish gpio example program<br>
+
Categorize new tutorials
  
−
Categorize new tutorials<br>  
+
How to manage the kernel modules on Linux
 +
 
 +
How do I edit my kernel command line
 +
 
 +
== AUDIO DSP-ARM==
 +
 
 +
===Included (IGEP GST DSP):===
 +
'''AACHEDEC -> DEC AACHE (OK)'''
 +
 
 +
http://download.wavetlan.com/SVV/Media/HTTP/FAAC-HE-AAC.aac
 +
 
 +
gst-launch --gst-debug-level=2 filesrc location=sampleaache.m4a ! TIAuddec1 codecName=aachedec engineName=codecServer ! volume volume=0.25 ! alsasink  sync=false
 +
 
 +
outofthebox->ok
 +
 
 +
----
 +
 
 +
'''MP3DEC -> DEC MP3 (AUDIO ERRORS)'''
  
−
Finish tutorials below<br>
+
- Followed README file from ISEE - IGEP DSP - GST + DMAI Support Package 3.40.00
  
−
Upgrade IGEP Technology Devices Guides
+
http://www.stephaniequinn.com/Music/Canon.mp3
  
−
Link all development tools documentation when possible (do a diagram)
+
gst-launch --gst-debug-level=2 filesrc location=Canon.mp3 ! TIAuddec1 codecName=mp3dec engineName=codecServer ! volume volume=0.25 ! alsasink  sync=false
  
−
Prove Log into IGEPv2 via Ethernet interface in new firmware
+
'''Random fatal bit error'''
  
−
How to manage the kernel modules on Linux
+
'''mp3-plugin doesn't resolve the error'''
 +
 
 +
----
 +
 
 +
'''G711DEC -> DEC PCM uLAW (speech) (NOT TESTED)'''
 +
 
 +
'''G711ENC -> ENC PCM uLAW (speech) (NOT TESTED)'''
 +
 
 +
===Not included  (IGEP GST DSP):===
 +
'''ACCLCDEC -> DEC AACLE (NOT TESTED)'''
 +
 
 +
'''AACLDDEC -> DEC AACLD (NOT TESTED)'''
 +
 
 +
'''WMA9 -> DEC WMA9 (COMPILING ISSUES)'''
 +
 
 +
'''ACCLCENC -> ENC AACLE (NOT TESTED)'''
 +
 
 +
'''ACCHEENC -> ENC AACHE (NOT TESTED)'''
 +
 
 +
'''AACLDENC -> ENC AACLD (NOT TESTED)'''
 +
 
 +
'''WMA8 -> ENC WMA8 (NOT TESTED)'''
 +
 
 +
'''Problems adding codecs into igep-gst-dsp'''
 +
 
 +
== DM3730==
 +
 
 +
=== DM3730: Decode a MP3 file (OK) (ADDED TO REPOSISTORIES)===
 +
 
 +
'''under contruction'''
 +
 
 +
'''does not have an accelerated audio decoder element'''
 +
 
 +
- Compiled gst-plugins-ugly using yocto tools
 +
 
 +
- rpm -igst-plugins-ugly-0.*.rpm
 +
 
 +
- rpm -i libmad0-0.*.rpm
 +
 
 +
- rpm -i gst-plugins-ugly-mad-0.*.rpm
 +
 
 +
- gst-launch filesrc location=sample.mp3 ! mad ! volume volume=0.25 ! alsasink
 +
 
 +
=== DM3730: Decode a RA or RM audio file (ERRORS)===
 +
 
 +
gst-launch --gst-debug-level=3 filesrc location=sample.ra ! rmdemux ! volume volume=0.25 ! alsasink
 +
 
 +
http://www.superluminal.com/andalib/ra/listen.ra
 +
 
 +
gst-plugins-ugly-rmdemux-0.10.19-r1.armv7a.rpm
 +
 
 +
libgstsdp-0.10-0-0.10.36-r3.armv7a.rpm:
 +
libgstsdp-0.10-0
 +
libgstsdp-0.10.so.0
 +
 
 +
libgstrtsp-0.10-0-0.10.36-r3.armv7a.rpm:
 +
libgstrtsp-0.10-0
 +
libgstrtsp-0.10.so.0
 +
 
 +
'''Error:'''
 +
 
 +
0:00:00.084839071  1550  0xa137b0 WARN                rmdemux rmdemux.c:1012:gst_rmdemux_chain:<rmdemux0> Bogus looking header, unprintable FOURCC
 +
 
 +
0:00:00.085052695  1550  0xa137b0 WARN                rmdemux rmdemux.c:1012:gst_rmdemux_chain:<rmdemux0> Bogus looking header, unprintable FOURCC
  
−
How do I edit my kernel command line
+
0:00:00.085540976  1550  0xa137b0 WARN                rmdemux rmdemux.c:1057:gst_rmdemux_chain:<rmdemux0> Unknown object_id .ra4
  
−
= Getting started with IGEP COM MODULE =
+
0:00:00.085693564  1550  0xa137b0 WARN                rmdemux rmdemux.c:1012:gst_rmdemux_chain:<rmdemux0> Bogus looking header, unprintable FOURCC
−
{{Table/IGEP Technology Devices
 
−
|Tech_Family={{#lst:Template:Links|IGEP_COM_MODULE_Tech_Family}}
 
−
|Tech_ID={{#lst:Template:Links|IGEP_COM_MODULE_Tech_ID}}
 
−
|Name={{#lst:Template:Links|IGEP_COM_MODULE_Name}}
 
−
|Image={{#lst:Template:Links|IGEP_COM_MODULE_Image}}
 
−
|ISEE_MainPage={{#lst:Template:Links|IGEP_COM_MODULE_ISEE_MainPage}}
 
−
|ISEE_Hardware={{#lst:Template:Links|IGEP_COM_MODULE_ISEE_Hardware}}
 
−
}}
 
  
 +
0:00:00.085815634  1550  0xa137b0 WARN                rmdemux rmdemux.c:1012:gst_rmdemux_chain:<rmdemux0> Bogus looking header, unprintable FOURCC
  
−
__TOC__
+
0:00:00.085907187  1550  0xa137b0 WARN                rmdemux rmdemux.c:1057:gst_rmdemux_chain:<rmdemux0> Unknown object_id RaTC
  
−
= Overview =
+
=== DM3730: Decode an AAC audio file (OK)===
  
−
This is the 1/3 chapter of IGEP COM MODULE Tutorial Guide.
+
EXTRA_OECONF += "--disable-examples --disable-experimental --disable-sdl --disable-cdaudio --disable-directfb \
 +
                --with-plugins=musicbrainz,wavpack,ivorbis,mpegvideoparse,'''faad2''' --disable-vdpau --disable-apexsink \
 +
                --disable-orc"
 +
Install:
  
−
In this first chapter, we will learn '''how to connect IGEP COM MODULE''', '''how to log into IGEP COM MODULE via USB''' and '''how to log into IGEPv2 via WIFI'''.
 
  
−
= Requirements =
+
faad2-2.7-r2.armv7a.rpm
 +
libfaad2-2.7-r2.armv7a.rpm
 +
gst-plugins-bad-faad-0.10.23-r2.armv7a.rpm
  
−
In this tutorial we are going to use the following peripherals:
+
'''maybe there are necessary more packages, compare actual gst-bad-recipe and add changes. Necessary add faad2 recipe'''
 +
<pre>bitbake faad2 gst-plugins-bad</pre>
 +
<pre> rpm -i faad2-2.7-r2.armv7a.rpm
 +
rpm -i libfaad2-2.7-r2.armv7a.rpm
 +
rpm -i gst-plugins-bad-faad-0.10.23-r2.1.armv7a.rpm
 +
</pre>
  
−
* IGEP COM MODULE
+
gst-launch --gst-debug-level=3 filesrc location=sample.aac ! faad ! volume volume=0.10 ! alsasink
−
* a USB Cable mini-B
 
−
* USB Hub with external power supply
 
−
* a PC with Linux or Windows
 
  
−
= Getting started =
+
==== DM3730: Decode an WMA audio file (OK)====
−
== Power up IGEP COM MODULE  ==
 
  
−
[[Image:IGEP_COM_MODULE_with_HUB.JPG|right|200px]]IGEP COM MODULE for standalone operation (without expansion boards) can be supplied using a 5V DC through USB 2.0 OTG connector. Use an USB Hub with external power supply.<br><br><br><br><br><br><br><br>
+
<pre>bitbake gst-ffmpeg</pre>
  
−
== Log into IGEP COM MODULE via WIFI interface ==
+
<pre>gst-launch -v filesrc location=sample.wma ! asfdemux ! decodebin ! audioconvert ! volume volume=0.25 ! alsasink  </pre>
−
== Log into IGEP COM MODULE via USB Ethernet Gadget interface ==
 
  
 +
=== DM3730: Decode an OGG audio file (OK)===
  
−
{{Navigation/IGEP Technology Guides/Getting Started/Ending
+
'''Into repositories (base plugins):'''
−
|Next_Step={{#lst:Template:Links|IGEP_COM_MODULE_Community_Guides_2}}
 
−
}}
 
  
−
{{Table/IGEP Technology Devices
+
http://upload.wikimedia.org/wikipedia/en/0/04/Rayman_2_music_sample.ogg
−
|Tech_Family={{#lst:Template:Links|IGEP_COM_MODULE_Tech_Family}}
 
−
|Tech_ID={{#lst:Template:Links|IGEP_COM_MODULE_Tech_ID}}
 
−
|Name={{#lst:Template:Links|IGEP_COM_MODULE_Name}}
 
−
|Image={{#lst:Template:Links|IGEP_COM_MODULE_Image}}
 
−
|ISEE_MainPage={{#lst:Template:Links|IGEP_COM_MODULE_ISEE_MainPage}}
 
−
|ISEE_Hardware={{#lst:Template:Links|IGEP_COM_MODULE_ISEE_Hardware}}
 
−
}}
 
  
−
[[Category:IGEP Technology Devices Guides]]
+
gst-launch -v filesrc location=sample.ogg ! oggdemux ! vorbisdec ! audioconvert ! volume volume=0.25 ! alsasink
  
 +
== BASE0033 CONNECTOR SUMMARY TABLE==
  
−
= What can I do with IGEP COM MODULE =
+
== Configure a static IP using the same private network range ==
−
{{Table/IGEP Technology Devices
 
−
|Tech_Family={{#lst:Template:Links|IGEP_COM_MODULE_Tech_Family}}
 
−
|Tech_ID={{#lst:Template:Links|IGEP_COM_MODULE_Tech_ID}}
 
−
|Name={{#lst:Template:Links|IGEP_COM_MODULE_Name}}
 
−
|Image={{#lst:Template:Links|IGEP_COM_MODULE_Image}}
 
−
|ISEE_MainPage={{#lst:Template:Links|IGEP_COM_MODULE_ISEE_MainPage}}
 
−
|ISEE_Hardware={{#lst:Template:Links|IGEP_COM_MODULE_ISEE_Hardware}}
 
−
}}
 
  
 +
'''under construction'''
  
−
__TOC__
+
IGEP Firmware Yocto uses the following Ethernet network configuration (IP addresses)
  
−
= Overview =
+
*eth0 − 192.168.5.1
−
= What can I do =
+
*eth0:0 − assigned via dhcp.
−
== Handle the gpio-LED's ==
 
−
== Send a file between your PC and IGEPv2 via SCP ==
 
−
== Update your pre-installed software ==
 
−
== Flash the latest software image ==
 
−
== Basic instructions ==
 
−
== Mount a MicroSD card ==
 
  
−
{{Template:Navigation/IGEP Technology Guides/What can I do/Ending}}
+
This Ethernet network configuration is really useful when you work using a Linux operating system like IGEP SDK Virtual Machine. Because you use eth0 device to communicate easily with your board and eth0:0 device to get Internet acces using dhcp protocol.
  
−
{{Table/IGEP Technology Devices
+
But some scenarios this network configuration is not useful, for example: if you use a non-Linux operating system, connect to two IP private range interfaces is not simple. This How-to can be useful to
−
|Tech_Family={{#lst:Template:Links|IGEP_COM_MODULE_Tech_Family}}
 
−
|Tech_ID={{#lst:Template:Links|IGEP_COM_MODULE_Tech_ID}}
 
−
|Name={{#lst:Template:Links|IGEP_COM_MODULE_Name}}
 
−
|Image={{#lst:Template:Links|IGEP_COM_MODULE_Image}}
 
−
|ISEE_MainPage={{#lst:Template:Links|IGEP_COM_MODULE_ISEE_MainPage}}
 
−
|ISEE_Hardware={{#lst:Template:Links|IGEP_COM_MODULE_ISEE_Hardware}}
 
−
}}
 
  
−
[[Category:IGEP Technology Devices Guides]]
+
(Make diagram one: IGEP and Linux defualt communication. Diagram 2 IGEP and other SO alternative configuration)
  
 
= igep.ini parameters  =
 
= igep.ini parameters  =
Line 323: Line 373:
 
| Only for base0010<br>=B
 
| Only for base0010<br>=B
 
|}
 
|}
−
 
−
= How to use GPIOs (update it)  =
 
−
 
−
== Overview  ==
 
−
 
−
This How-To is meant to be a starting point for people to learn use GPIOs for IGEP v2 devices as quickly and easily as possible. For this how-to i used [http://releases.linaro.org/platform/linaro-m/headless/final/linaro-m-headless-tar-20101108-2.tar.gz Linaro Headless] with [[Linux Kernel 2.6.35.y|Kernel 2.6.35.y]], Ubuntu 10.04 with Linaro Toolchain, IGEP v2 RC5 and [http://downloads.igep.es/labs/gpio-driver.tar.bz2 GPIO driver].
 
−
 
−
There are more ways to use GPIOs in IGEP v2, but this one is very simple.<br>
 
−
 
−
== Feedback and Contributing  ==
 
−
 
−
At any point, if you see a mistake you can contribute to this How-To.<br>
 
−
 
−
== Compile GPIO driver source code via Host<br>  ==
 
−
 
−
Download [http://downloads.igep.es/labs/gpio-driver.tar.bz2 GPIO driver] and [[Linux Kernel 2.6.35.y|Kernel 2.6.35.y]] source code. Extract files.<br>
 
−
 
−
Edit GPIO driver Makefile's:
 
−
 
−
-In files: $/app/Makefile and $/lib/Makefile, make sure that your CROSS_COMPILE path is correct.
 
−
 
−
-In file: $/modules/Makefile, make sure that your CROSS_COMPILE path is correct and&nbsp;type your Kernel 2.6.35.y path.<br>
 
−
 
−
We will use the ncurses program for set up Kernel configuration, if you don't have this program installed then you must install it with this command:
 
−
<pre>sudo apt-get install ncurses-dev
 
−
</pre>
 
−
-Go to kernel path and type:
 
−
<pre>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- igep00x0_defconfig
 
−
</pre>
 
−
Exit Linux Kernel Configuration an return to Bash. Type:
 
−
<pre>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- modules_prepare
 
−
</pre>
 
−
File $/include/generated/autoconf.h was created
 
−
 
−
Finally compile GPIO driver, go to main Makefile path and compile all source code using make command.
 
−
 
−
Send binaries created from Host to Igep v2. <br>
 
−
 
−
== Install binaries via IGEP<br>  ==
 
−
 
−
Log with root user to install binaries.
 
−
 
−
=== Install module  ===
 
−
 
−
Go to:$/modules and insert user-gpio-drv.ko into linux kernel with the following command:
 
−
<pre>insmod user-gpio-drv.ko
 
−
</pre>
 
−
Check that user-gpio-drv.ko is currently loaded with the following command:
 
−
<pre>lsmod</pre>
 
−
The result will be similar at that: <br>
 
−
<pre>root@localhost:~/gpio-driver/module# lsmod
 
−
Module                  Size  Used by
 
−
user_gpio_drv          1639  0
 
−
omap_wdt                3411  0
 
−
spidev                  4198  0
 
−
iommu                  8558  0
 
−
rtc_twl                4411  0
 
−
rtc_core              11187  1 rtc_twl
 
−
twl4030_keypad          2970  0
 
−
</pre>
 
−
The module is loaded until system halt.
 
−
 
−
=== Install shared library  ===
 
−
 
−
Go to:$/lib. libgpio.so is here.
 
−
 
−
If a program is linked with shared libraries, Kernel seek in specific paths when program is executed. Now is necessary link the libgpio.so path to the environment variable LD_LIBRARY_PATH, use the following command:<br>
 
−
<pre>export LD_LIBRARY_PATH=/root/gpio-driver/lib/
 
−
</pre>
 
−
Check that libgpio.so is linked correctly. Go to:$/gpio-driver/app, gpio program is here. Type next command:
 
−
<pre>ldd gpio
 
−
</pre>
 
−
ldd command, print shared library dependencies. The result will be similar at that:
 
−
<pre>root@localhost:~/gpio-driver/app# ldd gpio
 
−
libgpio.so =&gt; /root/gpio-driver/lib/libgpio.so (0x40197000)
 
−
libc.so.6 =&gt; /lib/libc.so.6 (0x401a0000)
 
−
/lib/ld-linux.so.3 (0x4008a000)
 
−
</pre>
 
−
The shared library is linked until system halt. Now you can execute gpio example program.
 
−
 
−
== Testing driver  ==
 
−
 
−
To make sure than driver works well, make the next test. I used GPIO_136(sdmmc2_dat4) and GPIO_137(sdmmc2_dat5) because IGEP v2 RC5(without WIFI) don't use them by default: <br>
 
−
 
−
'''NOTE:''' For more information visit this [[Mux configuration|page]] (under construction). <br>
 
−
 
−
=== Configure Mux  ===
 
−
 
−
Go to:/sys/kernel/debug/omap_mux, and change this mux configuration:
 
−
<pre>echo 0x104&gt;sdmmc2_dat4
 
−
echo 0x104&gt;sdmmc2_dat5
 
−
</pre>
 
−
Use cat command to check it:<br>
 
−
<pre>cat sdmmc2_dat4
 
−
cat sdmmc2_dat5
 
−
</pre>
 
−
The result will be similar at that:
 
−
<pre>root@localhost:/sys/kernel/debug/omap_mux# cat sdmmc2_dat4
 
−
name: sdmmc2_dat4.gpio_136 (0x48002164/0x134 = 0x0104), b ae4, t NA
 
−
mode: OMAP_PIN_INPUT | OMAP_MUX_MODE4
 
−
signals: sdmmc2_dat4 | sdmmc2_dir_dat0 | NA | sdmmc3_dat0 | gpio_136 | NA | NA | safe_mode
 
−
</pre>
 
−
and
 
−
<pre>root@localhost:/sys/kernel/debug/omap_mux# cat sdmmc2_dat5
 
−
name: sdmmc2_dat5.gpio_137 (0x48002166/0x136 = 0x0104), b ah3, t NA
 
−
mode: OMAP_PIN_INPUT | OMAP_MUX_MODE4
 
−
signals: sdmmc2_dat5 | sdmmc2_dir_dat1 | cam_global_reset | sdmmc3_dat1 | gpio_137 | hsusb3_tll_stp | mm3_rxdp | safe_mode
 
−
</pre>
 
−
Note: OMAP_PIN_INPUT=Input/Output pin and OMAP_PIN_OUTPUT=Output pin, for Read/Write test you need the first one. GPIO is configured in mode 4.<br>
 
−
 
−
=== Read/Write test  ===
 
−
 
−
Link GPIO_136 and GPIO_137 with a wire, these pins are located in J990 connector with numbers 7 and 9. I use the next connector to join them:<br>
 
−
 
−
{| align="center" cellspacing="1" cellpadding="1" border="1" width="200"
 
−
|-
 
−
| [[Image:Connector used readwrite test.JPG|center|350x230px]]
 
−
|
 
−
[[Image:All connected readwrite test.JPG|center|350x230px]]
 
−
 
−
|}
 
−
 
−
<br>
 
−
 
−
Now type next code:
 
−
<pre>root@localhost:~/gpio-driver/app# ./gpio input 136
 
−
root@localhost:~/gpio-driver/app# ./gpio output 137 0
 
−
root@localhost:~/gpio-driver/app# ./gpio get 136   
 
−
0
 
−
root@localhost:~/gpio-driver/app# ./gpio output 137 1
 
−
root@localhost:~/gpio-driver/app# ./gpio get 136   
 
−
1
 
−
root@localhost:~/gpio-driver/app#
 
−
</pre>
 
−
The results (CMOS Voltages: 0V-1V8):
 
−
 
−
{| align="center" cellspacing="1" cellpadding="1" border="1" width="200"
 
−
|-
 
−
| [[Image:GPIO value0 readwrite test.JPG|center|350x230px]]
 
−
|
 
−
[[Image:GPIO value1 readwrite test.JPG|center|350x230px]]
 
−
 
−
|}
 
−
 
−
<br> The code above shows that driver works properly, GPIO_136 is configured like input and GPIO_137 is configured like output with value 0, when read GPIO_136 the result is 0. To make sure that works well, configure GPIO_137 with value 1, now GPIO_136 reads 1. <br> This driver have more options like IRQ, but is not explained here.
 
−
 
−
<br> Other examples:[[What can I do with IGEP0020#How_to_handle_the_gpio-LED.27s]]
 
−
 
−
= How to use UARTs (update it)<br>  =
 
−
 
−
== Overview  ==
 
−
 
−
This How-To is meant to be a starting point for people to learn use UART for IGEPv2 devices as quickly and easily as possible. In this how-to, we use [http://releases.linaro.org/platform/linaro-m/headless/final/linaro-m-headless-tar-20101108-2.tar.gz Linaro Headless] with [[Linux Kernel 2.6.35.y|Kernel 2.6.35.y]] and [http://labs.isee.biz/images/e/ee/Uart-test-beta2.tar.bz2 UART test program]
 
−
 
−
More information about [http://en.wikipedia.org/wiki/UART UART].
 
−
 
−
'''Note''': This program has a debug option using GPIOs to debug via oscilloscope, this option is useful to learnt about the Kernel latencies. Debug has set to "write" and "select" functions.
 
−
 
−
[[Frequently Asked Questions and Their Answers#How_many_UARTs_are_available.3F|More information]]
 
−
 
−
== Feedback and Contributing  ==
 
−
 
−
At any point, if you see a mistake you can contribute to this How-To.
 
−
 
−
== Preparing IGEP  ==
 
−
 
−
=== Configure UART1 and UART3 in IGEP with RS232 levels on J960 connector  ===
 
−
 
−
To test UARTs we use UART1 (dev/ttyS0) and UART3 (dev/ttyS2) via J960 connector using RS232 standard.
 
−
 
−
NOTE: Make sure that you installed open SSH server. If you don't have it go [[How to forge a local file system server with IGEP0020 board#Installing_Open_SSH_Server|here]].
 
−
 
−
By default, UART1 is used by RS485 driver, we need to disable it, edit igep.ini file: <br>
 
−
<pre>board.ei485= yes
 
−
</pre>
 
−
UART1 is configured in RS232 driver, when igep line is replaced by (or type in -Maybe you don't found this line-):<br>
 
−
<pre>board.ei485= no
 
−
</pre>
 
−
By default, UART3 is used by Kernel serial console, we need to disable it, go to igep.ini file, comment next line: <br>
 
−
<pre>console=ttyS2,115200n8</pre>
 
−
=== Check UARTs devices  ===
 
−
 
−
Make sure that Kernel detects UARTs, type:
 
−
<pre>dmesg | grep tty</pre>
 
−
The result will be similar at that:
 
−
<pre>root@localhost:~/PROGRAM# dmesg | grep tty
 
−
[    0.000000] console [tty0] enabled
 
−
[    0.598999] serial8250.0: ttyS0 at MMIO 0x4806a000 (irq = 72) is a ST16654
 
−
[    0.784057] serial8250.1: ttyS1 at MMIO 0x4806c000 (irq = 73) is a ST16654
 
−
[    0.969085] serial8250.2: ttyS2 at MMIO 0x49020000 (irq = 74) is a ST16654
 
−
[    1.153503] serial8250.3: ttyS3 at MMIO 0x49042000 (irq = 80) is a ST16654
 
−
root@localhost:~/PROGRAM# </pre>
 
−
Get information about UARTs, type:
 
−
<pre>setserial -g /dev/ttyS[0123]</pre>
 
−
The result will be similar at that:
 
−
<pre>root@localhost:~/PROGRAM# setserial -g /dev/ttyS*
 
−
/dev/ttyS0, UART: 16654, Port: 0x0000, IRQ: 72
 
−
/dev/ttyS1, UART: 16654, Port: 0x0000, IRQ: 73
 
−
/dev/ttyS2, UART: 16654, Port: 0x0000, IRQ: 74
 
−
/dev/ttyS3, UART: 16654, Port: 0x0000, IRQ: 80
 
−
root@localhost:~/PROGRAM# </pre>
 
−
If you don't have setserial installed type:
 
−
<pre>apt-get install setserial</pre>
 
−
NOTE: Starting from Kernel 2.6.37.y, ttySx are named ttyOx. You need to edit source program.
 
−
 
−
=== Connect peripherals  ===
 
−
 
−
Connect IGEPv2 board using J960 connector like this:
 
−
 
−
J960   
 
−
                    ------ 
 
−
    (Not used) x---| 1  2 |---o (Connect to 8)
 
−
(Connect to 9) o---| 3  4 |---x (Not used)
 
−
        (GND)·|---| 5  6 |---|· (GND)
 
−
    (Not used)x---| 7  8 |---o (Connect to 2)
 
−
(Connect to 3) o---| 9 10 |---x (Not used)
 
−
                    ------
 
−
 
−
=== Send some data  ===
 
−
 
−
Use minicom to prove it, open two terminals via SSH&nbsp;and log with root user:
 
−
 
−
Terminal 1:
 
−
<pre>minicom -D /dev/ttyS0</pre>
 
−
Terminal 2:
 
−
<pre>minicom -D /dev/ttyS2 </pre>
 
−
Type something in one terminal.
 
−
 
−
{| align="center" cellspacing="1" cellpadding="1" border="1" width="200"
 
−
|-
 
−
| style="text-align: left;" | [[Image:Minicom screenshot.png|640x400px]]
 
−
|}
 
−
 
−
== Schematics  ==
 
−
 
−
=== RS232 Schematic Igep V2  ===
 
−
 
−
{| align="center" cellspacing="1" cellpadding="1" border="1"
 
−
|-
 
−
| [[Image:RS232 Schematic Igep V2.png|800x531px]]
 
−
|}
 
−
 
−
<br>
 
−
 
−
=== Uart Schematic Igep Module  ===
 
−
 
−
{| align="center" cellspacing="1" cellpadding="1" border="1" width="200"
 
−
|-
 
−
| [[Image:Uart Schematic Igep Module.png|581x600px]]
 
−
|}
 
−
 
−
== Compile and run program  ==
 
−
 
−
Download [http://labs.isee.biz/images/e/ee/Uart-test-beta2.tar.bz2 program source].
 
−
 
−
As explained above, the program uses GPIO for debug option via oscilloscope, it is necessary install user-gpio-drv.ko driver inside Linux Kernel, more information [[How to use GPIOs|here]] .
 
−
 
−
There are some interesting things to configure, before compiling the program. Open it, seek next lines:
 
−
<pre>//Define Array char size
 
−
#define SIZE 30
 
−
//Define Debug mode:0==Disable
 
−
#define DEBUG 0
 
−
 
−
//Define wait select
 
−
#define WAIT 5
 
−
 
−
//Set GPIO Debugger port
 
−
//Be sure that mux is correctly configured and GPIOs are not used
 
−
#define GPIO1 136
 
−
#define GPIO2 137 </pre>
 
−
Constant SIZE: it determines the max number of char than can be sent<br>
 
−
 
−
Constant DEBUG: it can break program infinite loop part, it can be useful to debug some errors, 0 (infinite loop) or positive number determine loop max entrances
 
−
 
−
Constant WAIT: it configurea select max time.
 
−
 
−
Constants GPIO1 and GPIO2: they configure GPIOs used for debug via oscilloscope. Take care to configure mux and don't use them for other purposes<br>
 
−
 
−
Once you have installed module. Compile program using your Cross Compiler, I used arm-linux-gnueabi-:
 
−
<pre>arm-linux-gnueabi-gcc uart-test-beta1.c -o uart-test-beta1 </pre>
 
−
== Testing UART  ==
 
−
Some tests do it:
 
−
 
−
=== Decode Characters  ===
 
−
 
−
Decoded with [http://www.asciitable.com/ ASCII table].
 
−
 
−
{| align="center" cellspacing="1" cellpadding="1" border="1" width="200"
 
−
|-
 
−
| [[Image:Uart decode1withlf.JPG|350x230px]]
 
−
| [[Image:Uart decode0withlf.JPG|350x230px]]
 
−
| [[Image:Uart decode100000withlf.JPG|350x230px]]
 
−
|-
 
−
| Decoding "1\n"
 
−
| Decoding "0\n"
 
−
| Decoding "100000\n"
 
−
|}
 
−
 
−
Click to enlarge image
 
−
 
−
=== select timeout  ===
 
−
 
−
Program sends information via UART1 but don't receive response via UART3, because only a process is executed. This problem is repeated every 5 seconds (constant WAIT=5) until other process sends information via UART3 at the same speed. If "select" hasn't been implemented, process would have stayed blocked.<br>
 
−
 
−
{| align="center" cellspacing="1" cellpadding="1" border="1" width="200"
 
−
|-
 
−
| [[Image:Uart select timeout9.JPG|350x230px]]
 
−
|-
 
−
| UART1=Blue and UART3=Green
 
−
|}
 
−
 
−
Click to enlarge image
 
−
 
−
=== RS232 Voltage params  ===
 
−
 
−
More information [http://en.wikipedia.org/wiki/RS-232#Standard_details here].
 
−
 
−
{| align="center" cellspacing="1" cellpadding="1" border="1" width="200"
 
−
|-
 
−
| [[Image:Uart voltageparams8.JPG|350x230px]]
 
−
|-
 
−
| Vpp=11.8V aprox , Vmin=-5.6V aprox
 
−
|}
 
−
 
−
Click to enlarge image
 
−
 
−
=== Speed Overview  ===
 
−
 
−
Note that wave is degraded when speed is higher
 
−
 
−
{| align="center" cellspacing="1" cellpadding="1" border="1" width="200"
 
−
|-
 
−
| [[Image:Uart 300 o.JPG|260x172px]]
 
−
| [[Image:Uart 4800 o.JPG|260x172px]]
 
−
| [[Image:Uart 115200 o.JPG|260x172px]]
 
−
| [[Image:Uart 3000000 o.JPG|260x172px]]
 
−
|-
 
−
| Overview signal to 300 bauds
 
−
| Overview signal to 4800 bauds
 
−
| Overview signal to 115200 bauds
 
−
| Overview signal to 3000000 bauds
 
−
|-
 
−
| [[Image:Uart 300 s.JPG|260x172px]]
 
−
| [[Image:Uart 4800 s.JPG|260x172px]]
 
−
| [[Image:Uart 115200 s.JPG|260x172px]]
 
−
| [[Image:Uart 3000000 s.JPG|260x172px]]
 
−
|-
 
−
| Specific wave to 300 bauds
 
−
| Specific wave to 4800 bauds
 
−
| Specific wave to 115200 bauds<br>
 
−
| Specific wave to 3000000 bauds<br>
 
−
|}
 
−
 
−
Click to enlarge image
 
−
 
−
=== Lag  ===
 
−
 
−
You can see that RS232 have some lag between transmisions. This caused mainly by kernel process management. UART peripheral is controlled by Linux and It isn't a [http://en.wikipedia.org/wiki/Real-time_operating_system real-time operating system].&nbsp;
 
−
 
−
{| align="center" cellspacing="1" cellpadding="1" border="1" width="200"
 
−
|-
 
−
| [[Image:Uart lag left6.JPG|350x230px]]
 
−
| [[Image:Uart lag right7.JPG|350x230px]]select: blocked until all data is available.
 
−
|-
 
−
| Lag between UART1 and UART3 (300 bauds)
 
−
| Lag between UART3 and UART1 (300 bauds)
 
−
|}
 
−
 
−
Click to enlarge image
 
−
 
−
This program have three I/O functions that connect to UART driver via ioctl: (read(), write() and select()). But select() and write() change process stat to sleep mode until system don't receive or transmit all information via UART. "select" function is used to prevent that read function can be blocked when data aren't available. <br>The next images (program with debug_gpio enabled and 300 bauds speed) show when process is executed or is waiting. Blue=UART1, Violet="write" and Green="select". When GPIO has HIGH value, process is blocked.<br>
 
−
 
−
{| align="center" cellspacing="1" cellpadding="1" border="1" width="200"
 
−
|-
 
−
| [[Image:Uart select5.JPG|260x172px]]
 
−
| [[Image:Uart select to write1.JPG|260x172px]]
 
−
| [[Image:Uart write2.JPG|260x172px]]
 
−
| [[Image:Uart write to select0.JPG|260x172px]]
 
−
|-
 
−
| select function time
 
−
| Time between select and write
 
−
| write function time
 
−
| Time between write and select
 
−
|}
 
−
 
−
Click to enlarge image<br>
 
−
 
−
In this case:
 
−
 
−
select: blocked until all data is available (LF char received).
 
−
 
−
write: blocked until all data is send to UART buffer.
 
−
 
−
=== Error test  ===
 
−
 
−
Every full process the number is increased twice. Program checks that this condicion is true, if it isn't accomplished, process will be finish.
 
−
 
−
{| align="center" cellspacing="1" cellpadding="1" border="1" width="200"
 
−
|-
 
−
| [[Image:Uart error test2.png|640x400px]]
 
−
|-
 
−
| Runs 16h without any transfer error (3000000 bauds)<br>
 
−
|}
 
−
 
−
<br>
 
−
 
−
[[Category:USB]] [[Category:How_to_forge]] [[Category:GPIO]] [[Category:UART]] [[Category:IGEP_Technology_Devices_Guides]]
 

Latest revision as of 15:28, 5 September 2014

TODO:

Categorize new tutorials

How to manage the kernel modules on Linux

How do I edit my kernel command line

AUDIO DSP-ARM

Included (IGEP GST DSP):

AACHEDEC -> DEC AACHE (OK)

http://download.wavetlan.com/SVV/Media/HTTP/FAAC-HE-AAC.aac

gst-launch --gst-debug-level=2 filesrc location=sampleaache.m4a ! TIAuddec1 codecName=aachedec engineName=codecServer ! volume volume=0.25 ! alsasink sync=false

outofthebox->ok

MP3DEC -> DEC MP3 (AUDIO ERRORS)

- Followed README file from ISEE - IGEP DSP - GST + DMAI Support Package 3.40.00

http://www.stephaniequinn.com/Music/Canon.mp3

gst-launch --gst-debug-level=2 filesrc location=Canon.mp3 ! TIAuddec1 codecName=mp3dec engineName=codecServer ! volume volume=0.25 ! alsasink sync=false

Random fatal bit error

mp3-plugin doesn't resolve the error

G711DEC -> DEC PCM uLAW (speech) (NOT TESTED)

G711ENC -> ENC PCM uLAW (speech) (NOT TESTED)

Not included (IGEP GST DSP):

ACCLCDEC -> DEC AACLE (NOT TESTED)

AACLDDEC -> DEC AACLD (NOT TESTED)

WMA9 -> DEC WMA9 (COMPILING ISSUES)

ACCLCENC -> ENC AACLE (NOT TESTED)

ACCHEENC -> ENC AACHE (NOT TESTED)

AACLDENC -> ENC AACLD (NOT TESTED)

WMA8 -> ENC WMA8 (NOT TESTED)

Problems adding codecs into igep-gst-dsp

DM3730

DM3730: Decode a MP3 file (OK) (ADDED TO REPOSISTORIES)

under contruction

does not have an accelerated audio decoder element

- Compiled gst-plugins-ugly using yocto tools

- rpm -igst-plugins-ugly-0.*.rpm

- rpm -i libmad0-0.*.rpm

- rpm -i gst-plugins-ugly-mad-0.*.rpm

- gst-launch filesrc location=sample.mp3 ! mad ! volume volume=0.25 ! alsasink

DM3730: Decode a RA or RM audio file (ERRORS)

gst-launch --gst-debug-level=3 filesrc location=sample.ra ! rmdemux ! volume volume=0.25 ! alsasink

http://www.superluminal.com/andalib/ra/listen.ra

gst-plugins-ugly-rmdemux-0.10.19-r1.armv7a.rpm

libgstsdp-0.10-0-0.10.36-r3.armv7a.rpm: libgstsdp-0.10-0 libgstsdp-0.10.so.0

libgstrtsp-0.10-0-0.10.36-r3.armv7a.rpm: libgstrtsp-0.10-0 libgstrtsp-0.10.so.0

Error:

0:00:00.084839071 1550 0xa137b0 WARN rmdemux rmdemux.c:1012:gst_rmdemux_chain:<rmdemux0> Bogus looking header, unprintable FOURCC

0:00:00.085052695 1550 0xa137b0 WARN rmdemux rmdemux.c:1012:gst_rmdemux_chain:<rmdemux0> Bogus looking header, unprintable FOURCC

0:00:00.085540976 1550 0xa137b0 WARN rmdemux rmdemux.c:1057:gst_rmdemux_chain:<rmdemux0> Unknown object_id .ra4

0:00:00.085693564 1550 0xa137b0 WARN rmdemux rmdemux.c:1012:gst_rmdemux_chain:<rmdemux0> Bogus looking header, unprintable FOURCC

0:00:00.085815634 1550 0xa137b0 WARN rmdemux rmdemux.c:1012:gst_rmdemux_chain:<rmdemux0> Bogus looking header, unprintable FOURCC

0:00:00.085907187 1550 0xa137b0 WARN rmdemux rmdemux.c:1057:gst_rmdemux_chain:<rmdemux0> Unknown object_id RaTC

DM3730: Decode an AAC audio file (OK)

EXTRA_OECONF += "--disable-examples --disable-experimental --disable-sdl --disable-cdaudio --disable-directfb \ 

                --with-plugins=musicbrainz,wavpack,ivorbis,mpegvideoparse,faad2 --disable-vdpau --disable-apexsink \
                --disable-orc"

Install:


faad2-2.7-r2.armv7a.rpm libfaad2-2.7-r2.armv7a.rpm gst-plugins-bad-faad-0.10.23-r2.armv7a.rpm

maybe there are necessary more packages, compare actual gst-bad-recipe and add changes. Necessary add faad2 recipe 

bitbake faad2 gst-plugins-bad
 rpm -i faad2-2.7-r2.armv7a.rpm
rpm -i libfaad2-2.7-r2.armv7a.rpm
rpm -i gst-plugins-bad-faad-0.10.23-r2.1.armv7a.rpm

gst-launch --gst-debug-level=3 filesrc location=sample.aac ! faad ! volume volume=0.10 ! alsasink

DM3730: Decode an WMA audio file (OK)

bitbake gst-ffmpeg
gst-launch -v filesrc location=sample.wma ! asfdemux ! decodebin ! audioconvert ! volume volume=0.25 ! alsasink

DM3730: Decode an OGG audio file (OK)

Into repositories (base plugins):

http://upload.wikimedia.org/wikipedia/en/0/04/Rayman_2_music_sample.ogg

gst-launch -v filesrc location=sample.ogg ! oggdemux ! vorbisdec ! audioconvert ! volume volume=0.25 ! alsasink

BASE0033 CONNECTOR SUMMARY TABLE

Configure a static IP using the same private network range

under construction

IGEP Firmware Yocto uses the following Ethernet network configuration (IP addresses)

  • eth0 − 192.168.5.1
  • eth0:0 − assigned via dhcp.

This Ethernet network configuration is really useful when you work using a Linux operating system like IGEP SDK Virtual Machine. Because you use eth0 device to communicate easily with your board and eth0:0 device to get Internet acces using dhcp protocol.

But some scenarios this network configuration is not useful, for example: if you use a non-Linux operating system, connect to two IP private range interfaces is not simple. This How-to can be useful to

(Make diagram one: IGEP and Linux defualt communication. Diagram 2 IGEP and other SO alternative configuration)

igep.ini parameters

The kernel command line syntax is name=value1. These next parameters are supported in igep.ini since IGEP-X_Loader 2.4.0-2:

[kernel]

Parameter Name Description Default value Comments
kaddress Kernel copy address =0x80008000 Hex memory address
rdaddress Ram Disk location address =0x81600000 Hex memory address;
disabled by default
serial.low Serial number (low part) =00000001 Numeric
serial.high Serial number (high part) =00000000 Numeric
revision Revision ID =0003 Numeric
kImageName Kernel, binary image name =zImage Kernel or binary image name
kRdImageName Kernel RAM Disk Image Name - Ram Disk image name
MachineID Machine ID (kernel ID)  ;IGEPv2
=2344 		 ;Module
=2717
;Proton
=3203
Mode Boot Mode  ;Linux kernel
=kernel 		 ;Other image (like uboot)
[binary image]

[kparams]

Parameter Name Description Default value Comments
buddy Enable/disable expansion board support  ;IGEPv2 Expansion Board support
=igep0022 		 ;Berlin and Paris Expansion Board support
=base0010
New York Expansion
=ilms0015
console Setup the kernel console parameters =ttyO2,115200n8 -
earlyprintk Enable early printk - -
mem Setup the Board Memory Configuration =430M -
boot_delay Setup the boot delay =0 -
mpurate Setup ARM Processor Speed - -
loglevel Setup the loglevel - -
debug Enable kernel debug output - -
fixrtc Fix RTC variable - -
nocompcache Configure nocompcache variable =1 -
omapfb.mode Configure frame bugger configuration =dvi:hd720-16@50  ;Other configuration
=dvi:1280x720MR-16@60
vram Configure Video RAM assigned to every frame buffer - -
omapfb.vram Configure Video RAM assigned to every frame buffer - -
omapfb.debug Configure frame buffer debug output - -
omapdss.debug Configure DSS Video debug output - -
smsc911x.mac0 Configure Board Ethernet Mac Address =0xb2,0xb0,0x14,0xb5,0xcd,0xde For IGEP BERLIN
smsc911x.mac1 Configure Board Ethernet Mac Address =0xb2,0xb0,0x14,0xb5,0xcd,0xdf For IGEP BERLIN (only with IGEP PROTON)
smsc911x.mac Configure Board Ethernet Mac Address =0xb2,0xb0,0x14,0xb5,0xcd,0xde For IGEPv2, IGEP PROTON, IGEP PARIS and IGEP BERLIN
ubi.mtd Fot UBI FS boot - -
root Configure root directory for MMC, NFS or UBI  ;For mmc memory
=/dev/mmcblk0p2 rw rootwait 		 ;For flash memory
=/dev/mtdblock2
nfsroot For NFS boot - -
rootfstype For UBI FS boot - -
ip For NFS boot - -
init Assign init program - -
musb_hdrc.debug USB debug - -
musb_hdrc.use_dma USB over network - -
libertas.libertas_debug Configure libertas debug - -
board.ei485 Enable/disable RS485  ;Enable RS485
=yes 		 ;Disable RS485
=no
board.modem Enable/disable GPRS modem  ;Enable modem (IGEPv2 Expansion)
=no 		 ;Enable modem (IGEPv2 Expansion)
=yes
buddy.revision Enable hardware buddy revision [A or B] Only for base0010
=A 		Only for base0010
=B
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