Difference between revisions of "Frequently Asked Questions and Their Answers"

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== ISEE/IGEP Common Questions  ==
 
== ISEE/IGEP Common Questions  ==
  
=== Which IGEP board do I have ?  ===
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=== Which IGEP board do I have?  ===
  
 
If you read silkscreen...  
 
If you read silkscreen...  
  
*"'''IGEP0010-...'''": You have an [[IGEP_v1_platform|IGEPv1]] board. [[Frequently Asked Questions and Their Answers#Which_revision_is_my_IGEPv1_board.3F|(Check your version here)]].  
+
*"'''IGEP0010-...'''": You have an [[IGEP v1 platform|IGEPv1]] board. [[Frequently Asked Questions and Their Answers#Which_revision_is_my_IGEPv1_board.3F|(Check your version here)]].  
*"'''IGEP0020-...'''": You have an [[IGEP_v2_platform|IGEPv2]] board. [[Frequently Asked Questions and Their Answers#Which_revision_is_my_IGEPv2_board.3F|(Check your version here)]]. See "[[Getting started with IGEP v2 board]]" manual.  
+
*"'''IGEP0020-...'''": You have an [[IGEP v2 platform|IGEPv2]] board. [[Frequently Asked Questions and Their Answers#Which_revision_is_my_IGEPv2_board.3F|(Check your version here)]]. See "[[Getting started with IGEP v2 board]]" manual.  
*"'''IGEP0030-...'''" or "'''IGEPv3 MODULE...'''": You have an [[Getting_started_with_IGEP_MODULE|IGEP MODULE]].  [[Frequently Asked Questions and Their Answers#Which_revision_is_my_IGEP_MODULE_board.3F|(Check your version here)]]. See "[[Getting started with OMAP3 IGEP module|Getting started with IGEP MODULE board]]" manual.
+
*"'''IGEP0030-...'''" or "'''IGEPv3 MODULE...'''": You have an [[Getting started with IGEP MODULE|IGEP MODULE]].  [[Frequently Asked Questions and Their Answers#Which_revision_is_my_IGEP_MODULE_board.3F|(Check your version here)]]. See "[[Getting started with OMAP3 IGEP module|Getting started with IGEP MODULE board]]" manual.
  
 
=== Where can I get more documentation (manuals,schematics,...)?  ===
 
=== Where can I get more documentation (manuals,schematics,...)?  ===

Revision as of 19:43, 28 June 2011

Contents

Frequently Asked Questions and Their Answers

ISEE/IGEP Common Questions

Which IGEP board do I have?

If you read silkscreen...

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

If you need more than these wiki pages, you can get manuals from IGEP website. You need a free self-registered user account and go to download validated user section.

Another hard way is access to public git repositories and search pending-documented features inside source code.









IGEP v1 hardware related questions

Which revision is my IGEPv1 board?

These platforms are ISEE boards based on ARM9 ARM processor.
They are developed for very cheap custom designs under project agreement.

IGEP v1 software related questions

igep_core

ISEE software framework to develop applications.










IGEP v2 hardware related questions

Which revision is my IGEPv2 board?

At this moment (2010-December):

  • IGEPv2 (Revision A): only few premium costumers have these version boards. You don't have them.
  • IGEPv2 (Revision B): they have silkscreen "IGEP0020-RB1" on board and are made from the year 2009 to 2010. They are not available anymore(see IGEP0020-RC3)
  • IGEPv2 (Revision C): they have silkscreen "IGEP0020-RC" on board and are made from the year 2010 to 2011
    • IGEP0020-RC1 assembly: boards are marked with "1" hand-made number on silkscreen box of IGEP0020-RC. These boards are shipped with OMAP3530 and wireless. ("MODEL: IGEP0020-RC1-OMAP3530-720Mhz")
    • IGEP0020-RC2 assembly: boards are marked with "2" hand-made number on silkscreen box of IGEP0020-RC. These boards are shipped with OMAP3530 and without wireless. ("MODEL: IGEP0020-RC2-OMAP3530-720Mhz-NOWIFI")
    • IGEP0020-RC3 assembly: boards are marked with "3" hand-made number on silkscreen box of IGEP0020-RC. These boards are shipped with OMAP3530 and wireless with IGEP0020-RB1 backward compatibility. They are for costumers who need IGEP0020RB1 boards.
    • IGEP0020-RC4 assembly: boards are marked with "4" hand-made number on silkscreen box of IGEP0020-RC. These boards are shipped with DM3730 and wireless. ("MODEL: IGEP0020-RC4-DM3730-1GHz")
    • IGEP0020-RC5 assembly: boards are marked with "5" hand-made number on silkscreen box of IGEP0020-RC. These boards are shipped with DM3730 and without wireless. ("MODEL: IGEP0020-RC5-DM3730-1GHz-NOWIFI")
    • IGEP0020-RC6 assembly: boards are marked with "6" hand-made number on silkscreen box of IGEP0020-RC. These boards are shipped with DM3730, wireless, ADC and expansion connectors. ("MODEL: IGEP0020-RC6-DM3730-1GHz-xxxxx")

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

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

See wireless feature and IGEP0020-RB1 backward compatibility


Linux kernel autodetects [1] B or C assembly configuration. Its uses gpio28 input:


BOARDS    GPIO28      
R243     R244    
B assembly configuration

IGEP0020-RB1

IGEP0020-RC3

 high level (1v8)

  Assembled    N/A
C assembly configuration

IGEP0020-RC1

IGEP0020-RC4

 low level

(0v)

  N/A   Assembled 


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.

User 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 unpopulated a super-cap/rechargable battery footprint (BT741) for real time clock backup battery

How to connect Bluetooth chipset to OMAP ?

  • Control serial link uses OMAP3 UART2
  • Audio link use OMAP McBSP3 and TPS65950 audio codec + mixer

How many UARTs are available?

OMAP3530 has 3 UARTS:

UART1 --> RS485 on connector J940
UART2 --> bluetooth
UART3 --> debug console on connector J960

OMAP3730 has 4 UARTS:

UART1 --> RS485 on connector J940
UART2 --> bluetooth
UART3 --> debug console on connector J960 
UART4 --> (NOT AVALIABLE on IGEPv2: it uses GPMC_WAIT2 and GPMC_WAIT3 pins)

All of this UART are also available on other connectors:

UART1 --> on connector JA41 without DVI transceiver with CMOS 1v8 logic.
UART1 --> on connector J940 with CMOS 3V3 logic
UART2 --> on expansion connector J990 without bluetooth feature.
UART3 --> on connector JA41 without DVI transceiver with CMOS 1v8 logic.

Read HOWTO use debug serial port.

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.


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. It 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  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).


What is the max Ethernet throughput with LAN9221i?

The ethernet throughput it's 94-96 M/bits second, LAN9221i it's connected direcly to OMAP processor addressable space and dedicated IRQ (no USB, SPI, converters ...).

# 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


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 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 IGEP0020-RC1/IGEPv2-RC or 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 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 (IGEPv2-RCx PCB compatible IGEPv2-RB1) board software compatibility.



Wifi

Reset

Wifi

PowerDown

Bluetooth

Reset

IGEP0020-RB1

GPIO_94

GPIO_95

Not Available

(TPD06)

IGEP0020-RC1

IGEP0020-RC4

GPIO_138  

(RD42)

GPIO_139

(RD44)

 GPIO_137

(RD17)

IGEP0020-RC3

GPIO_94

(RD41)

GPIO_95

(RD43)

 GPIO_137

(RD17)


We change GPIO_94/GPIO_95 of IGEP0020-RB1 version to GPIO_138/GPIO_139 IGEP0020-RCx version because GPIO_94/GPIO_95 are camera interface lines.

Linux kernel autodetects B or C assembly configuration. See IGEPv2 boards and IGEPv2-RCx PCB compatible IGEPv2-RB1.

Could you attach an LCD with LDVS interface?

You have to translate 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.

Is there a way to attach a VGA monitor directly?

IGEPv2 doesn't have VGA output. But it could be use :

  • DVI to VGA converter connected to DVI output.
  • IGEPv2 EXPANSION expands IGEPv2 capabilities. Among other things provides the VGA interface on D-SUB15 connector.

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 IGEP v2 board.

Mini usb OTG must be a MINI A Male?

Review the 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.

I would like too to know if the external wifi antena is easy to install? Where can I acquire a compatible external antenna?

On IGEP0020-RB boards:

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. 

On IGEP0020-RC boards:

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
<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.

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

Is it possible to power using USB OTG connector?

No, it is not possible on IGEPv2 boards

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.

IGEP v2 720MHz has aprox. 15% more power consumption on core and mpu_iva than 600MHZ.

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 ).

Boot up sequence

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

IGEP v2 software related questions

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

All of them are available on git.igep.es if you are a registered user.

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

U-Boot command line is a serial tty console. IGEPv2 normally uses UART3. So, you need send any key to serial port using some serial terminal application.

Look up! Don't press any key of any usb keyboard connected to IGEPv2, you need press any key of your computer keyboard attached to serial link to IGEPv2 ( serial cable + minicom or other serial terminal application )










IGEPv2 EXPANSION hardware related questions

Which revision is my IGEPv2 EXPANSION board?

  • IGEP MODULE BASEBOARD RevB: They were sold on 2010-3Q (silkscreen: "IGEPv2 expansion board" and "IGEP0022-RB")



IGEPv2 EXPANSION MODULE BASEBOARD software related questions

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

You could download software from IGEP GIT software repositories and then you could follow IGEP0030 steps in Howto the Linux kernel. You need free self-registered igep.es user account.











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")

Which differences are between IGEP MODULE board and IGEPv2 board

T.B.D.

Is it possible to power using USB OTG connector?

Yes, it is possible power standalone IGEP MODULE boards (without any baseboard plugged).
Look at: DON'T POWER IGEP MODULE through USB OTG and ANY base board AT SAME TIME

See: Getting started with IGEP MODULE

What is the maximun power consumption?

T.B.D.

I would like too to know if the external wifi antena is easy to install? Where can I acquire a compatible external antenna?

Default configuration use internal shared wifi/BT omni-antenna

But, on IGEP-MODULE boards could be hardware-hacked and disconnect internal antena to populate U.FL connector for pigtail and external antena:

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


IGEP MODULE software related questions

Which x-loader, u-boot and Linux kernel does IGEP MODULE use ?

You could download software from IGEP GIT software repositories and then you could follow IGEP0030 steps in Howto the Linux kernel. You need free self-registered igep.es user account.











IGEP MODULE BASEBOARD hardware related questions

Which revision is my IGEP MODULE board?

  • IGEP MODULE BASEBOARD RevA: They were sold on 2011-1Q (silkscreen: "IGEPv3-BASE RA")



IGEP MODULE BASEBOARD software related questions

Which x-loader, u-boot and Linux kernel does IGEP MODULE use ?

You could download software from IGEP GIT software repositories and then you could follow IGEP0030 steps in Howto the Linux kernel. You need free self-registered igep.es user account.












ISEE RADAR Kit  hardware related questions

Which revision is my ISEE RADAR Kit board?

At this moment (2011-March):

  • IGEP Radar Kit v1: It is the assembly of two boards. The radar sensor board (silkscreened "DNRA.0010.B2" manufactured in 2010) and the processor Board (silkscreened "IGEP0020-RB1" and manufactured in period 2009 to 2010) without WiFi.
  • IGEP Radar Kit v2: It is the assembly of two boards. The radar sensor board (Radar v2 Complete Option, silkscreened "RADR0010 RA" and manufactured in 2011) and the processor Board (silkscreened "IGEP0020-RB1" and manufactured in period 2009 to 2010) without WiFi.
  • IGEP Radar v2: It is A SINGLE BOARD with silkscreen "RADR0010 RA" on board and is manufactured in 2011.



ISEE RADAR Kit  software related questions

Which x-loader, u-boot and Linux kernel does IGEP MODULE use ?

You should use IGEPv2 standard software distribution for system base.