View source for Frequently Asked Questions and Their Answers

== IGEP Technology General related questions ==

=== Which IGEP board do I have?  ===

*[[IGEP Technology devices|Which IGEP board do I have]]


=== Which Board Revision (for example RA, RB, etc.) do I have? ===

*[[IGEP Technology devices revisions]]

=== Where can I get more documentation (manuals,schematics,...)?  ===

If you need more than these wiki pages, you can get manuals from the Official [http://www.isee.biz ISEE website] of all IGEP devices.

You can get a free self-registered user account and go to user downloads section.

Check the main [[Resources]] that are available for you.


== IGEPv1 Software related questions  ==

=== igep_core  ===

IGEP core refers to all ISEE software framework to develop applications. 


== IGEPv2 Hardware related questions  ==

=== What does "IGEP2: Hardware Revision B/C (B compatible)" mean?  ===

People who need IGEP0020-RB1 boards,&nbsp; use IGEP0020-RC3 boards (IGEP0020-RCx PCB with specific assembly for software compatibility). 

See [[Frequently Asked Questions and Their Answers#Is_it_possible_to_config_the_wireless_LAN_and_bluetooth_so_they_are_completely_off.2C_and_not_consuming_any_power_at_all.3F|wireless feature and IGEP0020-RB1 backward compatibility]] 


Linux kernel autodetects [http://git.isee.biz/?p=pub/scm/linux-omap-2.6.git;a=blobdiff;f=arch/arm/mach-omap2/board-igep0020.c;h=954a7a7f9ab888abd16235b2bf1e6b3635b7990d;hp=b41cdde6efe8ef247d1649ddfbfd373cc357a3d3;hb=3e56568cd7cd45ecf7a40bd3ffd0addd7132d26e;hpb=7f288504bbfa64a282fac0656f17393283131fe9] B or C assembly configuration. Its uses gpio28 input:<br> 

{| cellspacing="1" cellpadding="1" border="1" style="width: 383px; height: 146px;"
|-
| '''<br>''' 
| '''BOARDS'''&nbsp;&nbsp;&nbsp; 
| <span style="font-weight: bold;"> GPIO28&nbsp;</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br> 
| <span style="font-weight: bold;">R243 &nbsp; &nbsp;</span> 
| <span style="font-weight: bold;">R244 &nbsp; &nbsp;</span>
|-
| '''B assembly configuration'''<br> 
| 
IGEP0020-RB1 

IGEP0020-RC3 

| 
&nbsp;high level (1v8) 

| &nbsp; Assembled &nbsp;&nbsp; 
| style="text-align: center;" | N/A<br>
|-
| '''C assembly configuration'''<br> 
| 
IGEP0020-RC1 

IGEP0020-RC4 

| 
&nbsp;low level 

(0v) 

| &nbsp; N/A 
| &nbsp; Assembled&nbsp; <br>
|}

<br> 

=== Is it possible to connect a battery to maintain the real time clock in the board?  ===

Battery backup is not implemented on IGEPv2-RA and IGEPv2-RB. 

You can use i2c external rtc or connect externally a super-cap/rechargable battery on R768 pins. 

R768 is 0 Ohm resistor connected between GND and BKBAT (M14) input from TPS65950. 

IGEPv2-RC has available an unpopulated super-cap/rechargable battery footprint (BT741) for real time clock backup batter. 

<br> 

=== How to connect Bluetooth chipset to OMAP&nbsp;?  ===

*Control serial link uses OMAP3 UART2 
*Audio link use OMAP&nbsp;McBSP3 and TPS65950 audio codec + mixer<br>

<br> 

=== How many UARTs are available?  ===

OMAP3530 has 3 UARTS: 
<pre>UART1 --&gt; RS485 on connector J940
UART2 --&gt; bluetooth
UART3 --&gt; debug console on connector J960
</pre> 
OMAP3730 has 4 UARTS:<br> 
<pre>UART1 --&gt; RS485 on connector J940
UART2 --&gt; bluetooth
UART3 --&gt; debug console on connector J960 
UART4 --&gt; (NOT&nbsp;AVALIABLE on IGEPv2: it uses GPMC_WAIT2 and GPMC_WAIT3 pins)
</pre> 
All of this UART are also available on other connectors: 
<pre>UART1 --&gt; on connector JA41 without DVI transceiver with CMOS 1v8 logic.
UART1 --&gt; on connector J940 with CMOS 3V3 logic
UART2 --&gt; on expansion connector J990 without bluetooth feature.
UART3 --&gt; on connector JA41 without DVI transceiver with CMOS 1v8 logic.
</pre> 
Read this How to use [[Using serial debug port to communicate|debug serial port]]. 

<br> 

=== Is it available s-video or video composite output?  ===

A dual-display interface equips the OMAP3530/25 processor. This display subsystem provides the necessary control signals to interface the memory frame buffer directly to the external displays (TV-set). 

Two (one per channel) 10-bit current steering DACs are inserted between the DSS and the TV set to generate the video analog signal. One of the video DACs also includes TV detection and power-down mode. For more information, see the DSS chapter of the OMAP35x Technical Reference Manual. 

IGEP v2 board hasn't s-video or video composite output connector, but there are available on the board some test points to implement a fully-functionaly s-video output. 

<br> 

=== Which pins are free available on J990 IGEPv2 connector?  ===

*IGEP0020-RC1/IGEP0020-RC4 models: You could use McBSP1 pins (12,14,16,18,20,22,24), I2C2 pins (23,24) on J990. You could use software configuration to disable wifi interface and others because of shared wifi hardware lines. 
**MMC2 interface is used by wifi of built-in wifi/BT module. 
**McBSP3 interface is used by TPS65950 PCM&nbsp; interface and Bluetooth PCM interface of built-in wifi/BT module. 
*IGEP0020-RC2 model (no WIFI): these boards are fully functionality compatible to other third boards and all pins are free available (they aren't shared).

<br> 

=== What is the max Ethernet throughput with LAN9221i?  ===

The [http://en.wikipedia.org/wiki/Ethernet ethernet] throughput it's 94-96 M/bits second, [http://www.smsc.com/index.php?tid=145&pid=116 LAN9221i] it's connected direcly to OMAP processor addressable space and dedicated IRQ (no USB, SPI, converters ...). 
<pre># iperf -c 192.168.3.2
------------------------------------------------------------
Client connecting to 192.168.3.2, TCP port 5001
TCP window size: 25.4 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.3.100 port 59439 connected with 192.168.3.2 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 113 MBytes 94.6 Mbits/sec</pre> 
<br> 

=== Is it possible to config the wireless LAN and bluetooth so they are completely off, and not consuming any power at all?  ===

Yes, you could use powerdown and reset pins: 

On [[Frequently Asked Questions and Their Answers#Which_revision_is_my_IGEPv2_board.3F|IGEP0020-RB1/IGEPv2-RB]], wifi powerdown and reset lines are available on GPIO_94 and GPIO_95 pins, and it is not available reset bluetooth line (only TPD06 hardware test point). 

On [[Frequently Asked Questions and Their Answers#Which_revision_is_my_IGEPv2_board.3F|IGEP0020-RC1/IGEPv2-RC]] or [[Frequently Asked Questions and Their Answers#Which_revision_is_my_IGEPv2_board.3F|IGEP0020-RC4]], wifi powerdown and reset lines are available on GPIO_138 and GPIO_139 pins, and reset bluetooth line is available on GPIO_137. 

On [[Frequently Asked Questions and Their Answers#Which_revision_is_my_IGEPv2_board.3F|IGEP0020-RC3]], reset bluetooth line is available on GPIO_137, but they use GPIO_94 and GPIO_95 pins for wireless pins like IGEP0020-RB1 board configuration ([[Frequently Asked Questions and Their Answers#Is_it_possible_to_config_the_wireless_LAN_and_bluetooth_so_they_are_completely_off.2C_and_not_consuming_any_power_at_all.3F|IGEPv2-RCx PCB compatible IGEPv2-RB1]]) board software compatibility. 

<br> 

{| cellspacing="1" cellpadding="1" border="1" style="width: 400px; height: 279px;"
|-
| '''<br>''' 
| 
'''Wifi''' 

'''Reset''' 

| 
'''Wifi''' 

'''PowerDown''' 

| 
'''Bluetooth''' 

'''Reset''' 

|-
| '''IGEP0020-RB1'''<br> 
| 
GPIO_94<br> 

| 
GPIO_95 

| style="text-align: center;" | 
Not Available 

(TPD06)<br> 

|-
| 
'''IGEP0020-RC1''' 

'''IGEP0020-RC4''' <br> 

| 
GPIO_138&nbsp;&nbsp; 

(RD42)<br> 

| 
GPIO_139 

(RD44)<br> 

| 
&nbsp;GPIO_137 

(RD17) 

|-
| '''IGEP0020-RC3'''<br> 
| 
GPIO_94 

(RD41)<br> 

| 
GPIO_95 

(RD43)<br> 

| 
&nbsp;GPIO_137 

(RD17) 

|}

'''<br>''' 

The GPIO_94/GPIO_95 of IGEP0020-RB1 version is changed to GPIO_138/GPIO_139 of IGEP0020-RCx version because GPIO_94/GPIO_95 are camera interface lines.<br> 

Linux kernel autodetects B or C assembly configuration. Check you [[Frequently Asked Questions and Their Answers#Which_revision_is_my_IGEPv2_board.3F|IGEPv2 board revision]] and [[Frequently Asked Questions and Their Answers#Is_it_possible_to_config_the_wireless_LAN_and_bluetooth_so_they_are_completely_off.2C_and_not_consuming_any_power_at_all.3F|IGEPv2-RCx PCB compatible IGEPv2-RB1]].<br> 

<br> 

=== Can I attach an LCD with LDVS interface?  ===

You have to translate or convert it to LVDS which is a differential and serialized interface. For example you can use MAX9213 serializer LVDS to translate the parallel interface to LVDS. 

<br> 

=== Is there a way to attach a VGA monitor directly?  ===

IGEPv2 does not has VGA output. But you can use:<br> 

*a DVI to VGA converter connected to the IGEPv2 DVI output. 
*an [[Which IGEP board do I have#IGEP0022|IGEPv2 expansion board]], which expands IGEPv2 board capabilities. Among other things provides the VGA&nbsp;interface on D-SUB15 connector.<br>

<br> 

=== Is it possible to connect a CMOS sensor (ie are the camera signals available on a board connector)?  ===

The camera signals are not available on IGEPv2 board.<br> 

<br> 

=== Mini usb OTG must be a MINI A Male?  ===

Review the Official [http://igep.es/index.php?option=com_content&view=article&id=99&Itemid=129&dir=%2Fvar%2Fwww%2Fvhosts%2Figep.es%2Fhttpdocs%2Fdownloads%2F01-ISEE_Products%2FIGEPv2%2FHW_User_Manuals&download_file=%2Fvar%2Fwww%2Fvhosts%2Figep.es%2Fhttpdocs%2Fdownloads%2F01-ISEE_Products%2FIGEPv2%2FHW_User_Manuals%2FMAN-PR-IGEP.0020-001.23.HW_RC.pdf IGEPv2 Hardware Reference Manual]: Page7: USB 2.0 LS/FS/HS OTG 1 Mini AB USB socket connector (dual slave and host role) – That means you can use MINI-A and MINI-B cable. 

<br> 

=== Is the external wifi antenna easy to install? Where can I acquire a compatible external antenna?  ===

On IGEP0020-RB boards: <br> 
<pre>The JD11 is a GSC connector for the external Wifi interface. It is a MURATA GSC connector, Part number MM9329-2700RA1.

You only have to find a cable that fits with this MURATA connector.

Regarding the antenna, just need a 2.4Ghz Antenna. </pre> 
On IGEP0020-RC&nbsp;boards: <br> 
<pre>The JD11 is a "HRS (HIROSE) - U.FL-R-SMT(01) - RECEPTACLE, SMT, U.FL " connector

A popular Hirose U.FL (MHF IPEX) connector to SMA-RP (reverse polarity) connector cable fits in
</pre> 
<br> 

=== Is it possible to add analog video output?  ===

Yes, it is possible. There is no connector for S-video, but signals are available on board test points. 
<pre>TP400 and TP401 which are located on bottom side, belongs to luminance and chroma so:
TP401 = TVOUT_1R sch signal = PIN 3 S-video connector = Y = luminance
TP400 = TVOUT_2R sch signal = PIN 4 S-video connector= C = chroma
</pre> 
<br> 

=== Is it possible to power using USB OTG connector?  ===

No, it is not possible on IGEPv2 boards. 

<br> 

=== What is the maximun power consumption?  ===

The power consumption of IGEPv2@600Mhz is between 690 and 720mA 

The power consumption of IGEPv2@720Mhz is between 750 and 780mA. 

IGEPv2@720MHz has aprox. 15% more power consumption on core and mpu_iva than at 600MHZ. 

<br> 

=== What about "Skip erase bad block 124 at 0xf80000" means at bootlog?  ===

 Flash devices (nandflash or onenand or ...) have been factory marked with bad blocks. 

 New bad blocks could appear along flash life, and you should mark
 them (or JFFS2 file-system does automatically ).

<br> 

=== Boot up sequence  ===

#OMAP3 ROM Boot with IGEPv2 hardware configuration (sys_boot[6..0]=0110000) tries to load x-loader from ... 
##USB 
##UART3 
##MMC1 
##OneNAND 
#X-loader (Flash or microSD) loads uboot 
#U-boot (Flash or microSD) uses "bootcmd" environment command 
#Default ISEE U-boot "bootcmd" environment (Flash) tries to load Linux kernel from... 
##Network boot (Linux TFTP download + NFS rootfs export from ISEE SDK Virtual Machine) 
##microSD boot 
##Flash boot 
#Linux kernel (Network or microSD or Flash) uses configured rootfs cmdline 
#Root FS (Network or microSD or Flash or USB or RAMDISK ...)

<br> 

== IGEPv2 Software related questions  ==

=== Are the sources for the xloader, uBoot and kernel supplied with IGEPv2 board available?  ===

All of them are available at the Official [http://git.isee.biz/ GIT repositories]. You need registered user. 

<br> 

=== How do I stop U-Boot command line at "Hit any key to stop autoboot" prompt&nbsp;?  ===

U-Boot command line is a [[Using serial debug port to communicate|Serial tty console]]. IGEPv2 normally uses the UART3 to communicate and prompt out.<br> 

Follow this [[How to setup the IDC10 cable|how to setup the IDC10 cable]] article to connect you Serial cable to your IGEPv2 board.<br> 

Next, you need to send a key to this serial port using some [[Using serial debug port to communicate|Serial terminal application]].<br> 

<br> 

Note:Do not press any key of any usb keyboard connected to IGEPv2, as you need to press a key of your computer keyboard in the Serial console, which is attached to [[Using serial debug port to communicate|serial link]] to IGEPv2 via Serial cable.<br> 

( minicom, putty or other Serial console running on your computer -&gt; your computer DB9 connector -&gt; Serial cable -&gt; IGEPv2 board ) 

<br> 

== IGEPv2 EXPANSION Board Software related questions  ==

=== Which x-loader, u-boot and Linux kernel does IGEPv2 EXPANSION board use?  ===

You can download software from the Official [http://git.isee.biz/ GIT repositories] and then you can follow the IGEP0020 steps in [http://labs.igep.es/index.php/The_Linux_kernel| Howto the Linux kernel].<br> 

<br> 

== IGEP MODULE Hardware related questions  ==

=== Which revision is my IGEP MODULE board?  ===

*IGEP MODULE RevD: They were sold on 2010-4Q (silkscreen: "'''IGEPv3 MODULE RD'''") 
*IGEP MODULE RevE: They were sold on 2011 (silkscreen: "'''IGEPv3 MODULE RE'''")<br>

<br> 

=== Which differences are between IGEP MODULE board and IGEPv2 Board  ===

[[:Category:IGEP0020|IGEPv2 Board]] is a start board for testing purposes that you can use for testing the possibilites of the IGEP Platform boards and for developing your own applications.<br> 

You can also test this technology with the [[:Category:IGEP0022#IGEP0022|IGEPv2 EXPANSION]], which you can instantly attach to the IGEPv2 Board and test even more features and interficies.<br> 

Once you have tested and checked all the IGEP&nbsp;Platform possibilites you can use the [[:Category:IGEP0030|IGEP COM MODULE]], which consists on a single mini-board with all the IGEPv2 Board capabilities but with just a few of them implemented. That means you can create your own expansion board with any peripheral you want and attach it to your product, or you can contact with the [http://www.iseebcn.com/ ISEE team] (Integration Software Electronic Engineering) where you can ask for a customized board design with your own specifications.<br> 

<br> 

=== Is it possible to power using USB OTG connector?  ===

Yes, it is possible to power standalone IGEP MODULE boards (without any baseboard plugged).<br> <span style="color: rgb(255, 0, 0);">'''<span style="font-style: italic;">NOTE</span>: DON'T POWER IGEP MODULE through USB OTG and ANY base board AT SAME TIME'''</span>.<br> 

See also:&nbsp;[[Getting Started with IGEP0030 board|Getting Started with IGEP0030 board]]<br> 

<br>

=== What is the maximun power consumption?  ===

T.B.D.<br> 

<br> 

=== Is the external wifi antenna is easy to install? Where can I acquire a compatible external antenna?  ===

Default configuration will use the internal shared wifi/BT omni-antenna.<br> 

But on IGEP MODULE boards you can hardware-hack the board and disconnect the internal antenna to populate U.FL connector for pigtail and external antena:<br> 
<pre>The J2 is a "HRS (HIROSE) - U.FL-R-SMT(01) - RECEPTACLE, SMT, U.FL " connector

A popular Hirose U.FL (MHF IPEX) connector to SMA-RP (reverse polarity) connector cable fits in
</pre> 
Check your revision case:<br> 

*IGEP MODULE&nbsp;revision D&nbsp;boards do not have the internal antenna populated, but there connector for the external antenna is actually installed.<br> 
*IGEP&nbsp;MODULE&nbsp;revision E boards have the internal antenna.<br>

You can get an external antenna at the [https://www.isee.biz/store ISEE online shop].<br> 

<br>

=== Is it possible to config the wireless LAN and bluetooth so they are completely off, and not consuming any power at all?  ===

Yes, you could use powerdown and reset pins: <br> 

{| cellspacing="1" cellpadding="1" border="1" style="width: 400px; height: 137px;"
|-
| 
| 
'''Wifi''' 

'''Reset''' 

| 
'''Wifi''' 

'''PowerDown''' 

| 
'''Bluetooth''' 

'''Reset''' 

|-
| 
IGEP MODULE RevD 

IGEP MODULE RevE 

| 
GPIO_138&nbsp;&nbsp; 

| 
GPIO_139 

| GPIO_137 

|}

<br>

== IGEP MODULE Software related questions  ==

=== Which x-loader, u-boot and Linux kernel does IGEP MODULE use&nbsp;?  ===

You can download the software from the [http://git.isee.biz/ GIT repositories] and then you can follow the IGEP0030 steps in [http://labs.igep.es/index.php/The_Linux_kernel| Howto the Linux kernel]. 

<br> 

== IGEP MODULE BASEBOARD Software related questions  ==

=== Which x-loader, u-boot and Linux kernel does IGEP MODULE BASEBOARD use&nbsp;?  ===

You can download the software from the [http://git.isee.biz/ GIT repositories] and then you can follow the IGEP0030 steps in [http://labs.igep.es/index.php/The_Linux_kernel| Howto the Linux kernel]. 


== IGEP RADAR&nbsp;Kit&nbsp; software related questions  ==

=== Which x-loader, u-boot and Linux kernel does IGEP RADAR Kit use?  ===

You should use IGEPv2 standard software distribution for system base.

[[Category:Resources]]
[[Category:Work in progress]]