On 12 Mar, 20:48, Dave Boland <dbola...@fastmail.fm> wrote:
> I'm near the end of a project and would like to learn more about ARM
> processors for embedded use. =A0I have experience with 8052, 386, HC11,
> and 6800 derivatives, but nothing with the ARM. =A0Since this is a
> learning exercise (for now), the requirements are minimal:
>
> * Documentation: complete and reasonable well done.
> * Form factor: don't much care, but easy interface with peripherials nice=
.
> * ADC: 4 channels or more.
> * DAC: would be nice, not required.
> * GPIO: 16 or more (in addition to ADC if possible), TTL compatible
> would be nice, but not needed.
> * I2C and SPI
> * Network port
> * RS232/485: 1 or 2 ports
> * PWM: 4 channels or more
> * Code space: 256 KB nice, can use less
> * RAM: 256 KB.
> * OS's: uLinux or FreeRTOS or...
> * Tool chain: Linux prefered.
> * Cost: as cheap as possible
>
> Thanks for your suggestions.
>
> Dave,

You can get the LPCXpresso board for =A318 from Farnell. Free tools are
available for download.

http://www.embeddedartists.com/products/lpcxpresso/lpc1114_xpr.php?PHPSESSI=
D=3Dv4rudeo125djqkh8ieengknla3

Leon

Dave Boland skrev:
> I'm near the end of a project and would like to learn more about ARM
> processors for embedded use.  I have experience with 8052, 386, HC11,
> and 6800 derivatives, but nothing with the ARM.  Since this is a
> learning exercise (for now), the requirements are minimal:
> 

You can get a low cost Olimex ARM9 (SAM9260) with these features
This will be able to run linux (not uClinux) as well.


> * Documentation: complete and reasonable well done.
> * Form factor: don't much care, but easy interface with peripherials nice.
> * ADC: 4 channels or more.
OK
> * DAC: would be nice, not required.
No, use PWM
> * GPIO: 16 or more (in addition to ADC if possible), TTL compatible
> would be nice, but not needed.
OK
> * I2C and SPI
SPI is OK,
I2C is disabled in the linux kernel, and replaced by bitbanging.

> * Network port
OK 100 Mbps
> * RS232/485: 1 or 2 ports
OK, Dedicated H/W for RS485 so you do not have to
handle the RS-485 port enable manually.

> * PWM: 4 channels or more
OK

> * Code space: 256 KB nice, can use less
Several MB of Flash
> * RAM: 256 KB.
Several MB of SDRAM

> * OS's: uLinux or FreeRTOS or...

Linux is OK.
FreeRTOS is not that hard to get running.


> * Tool chain: Linux prefered.

Supported by Buildroot which builds everything you need
including the cross compiler.

> * Cost: as cheap as possible


> Thanks for your suggestions.
> 
> Dave,

Best Regards
Ulf Samuelsson

Glenn wrote:
 > Dave Boland wrote:
 >> I'm near the end of a project and would like to learn more about ARM
 >> processors for embedded use.  I have experience with 8052, 386, HC11,
 >> and 6800 derivatives, but nothing with the ARM.  Since this is a
 >> learning exercise (for now), the requirements are minimal:
 >>
 >> * Documentation: complete and reasonable well done.
 >> * Form factor: don't much care, but easy interface with peripherials
 >> nice.
 >> * ADC: 4 channels or more.
 >> * DAC: would be nice, not required.
 >> * GPIO: 16 or more (in addition to ADC if possible), TTL compatible
 >> would be nice, but not needed.
 >> * I2C and SPI
 >> * Network port
 >> * RS232/485: 1 or 2 ports
 >> * PWM: 4 channels or more
 >> * Code space: 256 KB nice, can use less
 >> * RAM: 256 KB.
 >> * OS's: uLinux or FreeRTOS or...
 >> * Tool chain: Linux prefered.
 >> * Cost: as cheap as possible
 >>
 >> Thanks for your suggestions.
 >>
 >> Dave,
 >
 >
 > Hi Dave
 >
 > What about one of these:
...
 > Schematics:
 > http://downloads.openmoko.org/schematics/GTA02/
...

Hi Dave

One of the importent urls has changed:
http://downloads.openmoko.org/developer/schematics/GTA02/

Glenn

Dave Boland wrote:
> I'm near the end of a project and would like to learn more about ARM 
> processors for embedded use.  I have experience with 8052, 386, HC11, 
> and 6800 derivatives, but nothing with the ARM.  Since this is a 
> learning exercise (for now), the requirements are minimal:
> 
> * Documentation: complete and reasonable well done.
> * Form factor: don't much care, but easy interface with peripherials nice.
> * ADC: 4 channels or more.
> * DAC: would be nice, not required.
> * GPIO: 16 or more (in addition to ADC if possible), TTL compatible 
> would be nice, but not needed.
> * I2C and SPI
> * Network port
> * RS232/485: 1 or 2 ports
> * PWM: 4 channels or more
> * Code space: 256 KB nice, can use less
> * RAM: 256 KB.
> * OS's: uLinux or FreeRTOS or...
> * Tool chain: Linux prefered.
> * Cost: as cheap as possible
> 
> Thanks for your suggestions.
> 
> Dave,

Hi Dave

Also look at:

LPC2148 (or bigger) Education Board:
http://www.embeddedartists.com/products/education/edu_2148.php

Extensionports might be used for:

QVGA TFT Color LCD:
http://www.embeddedartists.com/products/uclinux/ucl_qvga.php
Quote: "...Integrated LCD controller with embedded display RAM...No of 
pixels: 240xRGBx320 (QVGA size)..."

http://www.embeddedartists.com/products/education/edu_lcd.php
Citat: "...240 x 128 pixel monochrome graphical LCD..."

http://www.embeddedartists.com/products/education/edu_expansion.php
Citat: "...
&#4294967295; 128x128 color LCD (interface via SPI bus) with backlight control
&#4294967295; 3-axis accelerometer (MMA7260 from Freescale)
&#4294967295; 10M Ethernet interface (ENC28J60 from Microchip, interface via SPI bus)
&#4294967295; Joystick switch
&#4294967295; 2 push buttons
&#4294967295; 16 LEDs controlled via I2C (PCA9532)
&#4294967295; uSD/transflash connector (interface via SPI bus)
&#4294967295; Full-signal RS232 modem
&#4294967295; Interface to GPS module (A1035-C from Tyco Electonics). Note that GPS 
module is not included.
..."

WinARM:
http://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects/#winarm
Citat: "...
WinARM has been tested with Philips LPC2106, Philips LPC2129, Philips 
LPC2138, Philips LPC2148 and Atmel AT91SAM7S64, AT91SAM7S256, AT91RM9200 
ARM7TDMI(-S) controllers (the list is based on own tests and user 
feedback). The gnu-toolchain and the supplied tools should work with all 
microcontrollers based on ARM(-TDMI/Thumb etc.) architecture.
..."

http://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects/

-

http://www.arm.com/
http://www.arm.com/aboutarm/

http://en.wikipedia.org/wiki/ARM_architecture
List:
http://en.wikipedia.org/wiki/ARM_architecture#ARM_cores

-

http://www.buglabs.net/
svn://bugcommunity.com/
http://www.buglabs.net/applications
http://bugcommunity.com/forums/
http://bugcommunity.com/wiki/index.php/BUG_Wiki

-

Mixed ARM links:

ARM-Projects:
http://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects/index.html
WinARM:
http://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects/#winarm
WinARM GCC tutorial:
http://winarm.scienceprog.com/
http://en.mikrocontroller.net/
WinARM / ARM-GCC:
http://en.mikrocontroller.net/forum/17

Welcome to the ARM microcontroller Wiki!
http://www.open-research.org.uk/ARMuC/
Development Boards:
http://www.open-research.org.uk/ARMuC/index.cgi?Development_Boards
http://www.open-research.org.uk/ARMuC/index.cgi?Compiler_Suites

Learn Embedded Linux with ARMulator:
http://www.mcuprogramming.com/blog/2007/04/08/learn-embedded-linux-with-armulator-2/
http://en.wikipedia.org/wiki/Armulator

Elektronische Qualit&#4294967295;tsbauteile:
http://dkc1.digikey.com/de/digihome.html
LPC2148 9,2 &#4294967295;

ARM7 LPC2148 mini board:
http://www.scienceprog.com/arm7-lpc2148-mini-board/
ARM7-Base development board for LPC2148:
http://www.scienceprog.com/arm7-base-development-board-for-lpc2148/
First LPC2148 ARM7 microcontroller test&#4294967295;led blink:
http://www.scienceprog.com/first-lpc2148-arm7-microcontroller-test-led-blink/
RTC example on ARM7 LPC2148 using WinARM:
http://www.scienceprog.com/rtc-example-on-arm7-lpc2148-using-winarm/

GNUARM for ARM microcontrollers:
http://www.scienceprog.com/gnuarm-for-arm-microcontrollers/

LPC2148-based Line-tracing Race Car Robot Kit US$339:
http://microcontrollershop.com/product_info.php?cPath=315&products_id=2252

CMU Balancer Project
http://www.cs.cmu.edu/~garthz/research/Balancer/

Which RTOS to choose for LPC2148:
http://www.edaboard.com/ftopic187807.html

LPC2148's RTOS:
http://psas.pdx.edu/news/2007-04-11/RTOS.pdf

simpleRTJ, The simple Real Time Java:
http://www.rtjcom.com/main.php?p=show
http://www.rtjcom.com/main.php?p=21xx

Glenn

Dave Boland wrote:
> I'm near the end of a project and would like to learn more about ARM 
> processors for embedded use.  I have experience with 8052, 386, HC11, 
> and 6800 derivatives, but nothing with the ARM.  Since this is a 
> learning exercise (for now), the requirements are minimal:
> 
> * Documentation: complete and reasonable well done.
> * Form factor: don't much care, but easy interface with peripherials nice.
> * ADC: 4 channels or more.
> * DAC: would be nice, not required.
> * GPIO: 16 or more (in addition to ADC if possible), TTL compatible 
> would be nice, but not needed.
> * I2C and SPI
> * Network port
> * RS232/485: 1 or 2 ports
> * PWM: 4 channels or more
> * Code space: 256 KB nice, can use less
> * RAM: 256 KB.
> * OS's: uLinux or FreeRTOS or...
> * Tool chain: Linux prefered.
> * Cost: as cheap as possible
> 
> Thanks for your suggestions.
> 
> Dave,


Hi Dave

What about one of these:

-

http://www.embeddedartists.com/products/uclinux/

e.g.:

LPC2478 OEM Board and
QVGA OEM Base Board with touch panel:
http://www.embeddedartists.com/products/uclinux/oem_lpc2478.php

-

Please note that Neo FreeRunner applications are mostly programmed in 
Python (and many in C or C++). But you can choose almost whatever you like.

The Neo FreeRunner ARM platform might be interesting - also has GSM, GPRS:
http://www.openmoko.com/products-index.html
http://www.openmoko.org/
http://wiki.openmoko.org/wiki/Main_Page

It is also possible to buy an auxiliary debug-board.


More about Openmoko Neo Freerunner:

http://wiki.openmoko.org/wiki/Neo_FreeRunner
Quote: "...
     *  Very high resolution touch screen (1.7" x 2.27" - 43mm x 58mm) 
480x640 pixels
     * 128MB SDRAM memory
     * 256 MB integrated flash memory (expandable with microSD or 
microSDHC card)
     * uSD slot supporting up to 8GB SDHC (Secure Digital High Capacity) 
cards (Supported microSD cards; installation)
[ http://wiki.openmoko.org/wiki/MicroSD ]
[ http://wiki.openmoko.org/wiki/Supported_microSD_cards ]
     * Internal GPS module
     * Bluetooth
     * 802.11 b/g WiFi
     * 400Mhz ARM processor (Samsung 2442)
     * 2 3D accelerometers that orient the phone's screen -- for 
example, switching to landscape mode automatically
     * 2 LEDs illuminating the two buttons on the rim of the case (one 
bicolor [blue|orange] behind the power button, 1 unicolor [red] behind 
the aux button)
     * Tri-band GSM and GPRS
     * USB Host function with 500mA power, allowing you to power USB 
devices for short periods (will drain the FreeRunner battery faster)
..."

Neo FreeRunner CPU:
http://wiki.openmoko.org/wiki/Samsung_S3C2442B
Quote: "...
     *  Core: ARM920T
     * Instruction Set: ARMv4
..."

GTA02 Hardware Component Selection:
http://wiki.openmoko.org/wiki/Neo_FreeRunner_GTA02_Hardware#GTA02_Hardware_Component_Selection

http://downloads.openmoko.org/CAD/

CAD program (stp-format):
http://en.wikipedia.org/wiki/Pro/ENGINEER

Schematics:
http://downloads.openmoko.org/schematics/GTA02/

http://wiki.openmoko.org/wiki/Neo_FreeRunner
Quote: "...
Versions: The Neo FreeRunner is available in two versions, one for the 
GSM bands of North America (850/1800/1900 Mhz), and one for the GSM 
bands in the rest of the world (900/1800/1900 Mhz).
..."

Neo FreeRunner is sold in two hardware revisions GTA06 and GTA07:

http://wiki.openmoko.org/wiki/GTA02_revisions#GTA02v6
http://wiki.openmoko.org/wiki/GTA02_revisions#GTA02v7

Neo FreeRunner can be bought many places - please inquire about the 
hardware revision and GSM bands you want:
http://wiki.openmoko.org/wiki/Distributors

One of the version 3 debug boards RS232 ports ought to be generally usable:
http://wiki.openmoko.org/wiki/Debug_Board_v3

A good USB to RS-xxx can be bought here:
http://apple.clickandbuild.com/cnb/shop/ftdichip
Drivers (find out yourself if it works before you buy):
http://www.ftdichip.com/FTDrivers.htm
http://www.ftdichip.com/Drivers/VCP.htm
"...FT2232 support included in kernel 2.6.9 or greater..."

Possible list to ask:
http://lists.shr-project.org/mailman/listinfo
http://lists.openmoko.org/pipermail/community/

-

Pandora not mass-produced yet - but close?:

http://en.wikipedia.org/wiki/Pandora_(console)
Quote: "...Externally accessible UART for hardware hacking and 
debugging...Brick prevention with integrated bootloader for safe code 
experimentation...Dimensions: 140x83x27mm..."

http://openpandora.org/
Quote: "...
     * ARM&#4294967295; Cortex&#4294967295;-A8 600Mhz+ CPU running Linux
     * 430-MHz TMS320C64x+&#4294967295; DSP Core
     * PowerVR SGX OpenGL 2.0 ES compliant 3D hardware
     * 800x480 4.3" 16.7 million colours touchscreen LCD
     * Wifi 802.11b/g, Bluetooth & High Speed USB 2.0 Host
     * Dual SDHC card slots & SVideo TV output
     * Dual Analogue and Digital gaming controls
     * 43 button QWERTY and numeric keypad
     * Around 10+ Hours battery life
..."

http://pandorawiki.org/Category:Categories

Current Status:
http://www.open-pandora.org/index.php?option=com_content&view=article&id=98&Itemid=13&lang=en

-

http://en.wikipedia.org/wiki/OpenGL

Texas Instruments TMS320C64x:
http://www.bdti.com/procsum/tic64xx.htm

regards,

Glenn

In article <hne99p$foa$1@speranza.aioe.org>, dboland9@fastmail.fm says...
> I'm near the end of a project and would like to learn more about ARM 
> processors for embedded use.  I have experience with 8052, 386, HC11, 
> and 6800 derivatives, but nothing with the ARM.  Since this is a 
> learning exercise (for now), the requirements are minimal:
> 
> * Documentation: complete and reasonable well done.
> * Form factor: don't much care, but easy interface with peripherials nice.
> * ADC: 4 channels or more.
> * DAC: would be nice, not required.
> * GPIO: 16 or more (in addition to ADC if possible), TTL compatible 
> would be nice, but not needed.
> * I2C and SPI
> * Network port
> * RS232/485: 1 or 2 ports
> * PWM: 4 channels or more
> * Code space: 256 KB nice, can use less
> * RAM: 256 KB.
> * OS's: uLinux or FreeRTOS or...
> * Tool chain: Linux prefered.
> * Cost: as cheap as possible

I have recently been looking at smaller versions than you, but there
appears to be a few eval boards from many manufacturers.

I am considering the TI (was Luminary) as their boards are reasonably 
cheap. Some of the network ones have screens as well.

 
> Thanks for your suggestions.
> 
> Dave,
> 

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