AN004 - GreenArrays
Contents
1. 16 bit Virtual Machine that runs on our chips eForth requires only a terminal emulator on USB port B although the supplied emulator provides additional useful capabilities e polyFORTH isa full blown self reproducing professional application development operating system that also runs on a Virtual Machine programmed for our chips Mass storage is provided by the evaluation board and terminal services by an external system Eventually all the F18 programming tools will be implemented by this polyFORTH system Please see our website for to download these tools their documentation and other relevant code documentation and application notes 3 Resources and Details 3 1 What s in the Box In addition to the Eval Board itself there is an antistatic bag containing parts you may find useful The exact composition of this bag is subject to change but as of the time of this writing it contains the following items One Dual voltage 2 GB MMC card intended for use as primary mass storage by polyFORTH when that system is released One USB cable Two Clip leads One each DB9 RJ48 and USB B sockets Three TRS audio jacks Long single and double row male headers that may be cut up and soldered where needed Five LEDs and five 470Q resistors for diagnostic and general use 3 2 Getting Help There is a special webpage for customers who have bought our evaluation boards please visit it now at this URL http www greenarraychips com home support This2. Incline Village Nevada 89451 Printed in the United States of America Phone 775 298 4748 fax 775 548 8547 email Sales GreenArrayChips com Copyright 2010 2011 GreenArrays Incorporated
3. Recommended Working Area Factory Default Jumper Settings Check the Power Supply Identify and Set up COM Ports for USB A B C Simple Confidence Test using eForth Test GA144 Chips Move On to Programming Resources and Details What s in the Box Getting Help Errata in Current PCB Revision ANO04 Getting Started with Eval Board EVB001 1 Initial Check Out This section outlines procedures for inspecting a board and verifying its configuration and function These procedures are very similar to those we follow in the factory before shipping boards to you 1 1 Recommended Working Area Since the purpose of this board is to provide you with direct access to the very sensitive pins of your chips you should set up a working area to protect the chips against Electrostatic Discharge ESD from your body We recommend as a basic precaution that you use an anti static mat connected to a single point earth ground in common with any other equipment in use and that you wear a wrist strap as shown in the adjacent photo while handling or probing the board It is always a good idea to avoid wearing clothing that tends to accumulate static charges and to touch the mat or a grounded part of the board when approaching the work area and before touching other parts of the board Note that the metal shield of the SD card slot is a good ground for this purpose the shields of the USB connectors are not grounded in rev 0 1 1 If you have a
4. page is updated frequently and will always have the latest information for you Email hotline greenarraychips com for prompt replies to your questions The hotline team will provide you with additional contact information for direct personal support such as Skype ID and phone numbers upon request General documentation and downloads are posted in http www greenarraychips com home documents 3 3 Errata in Current PCB Revision PCB REV DESCRIPTION FIX OR WORK AROUND The VGA connector hole pattern J70 is rotated 180 Do not use J70 The pattern and wiring will be degrees corrected in the next board revision The ETO transmit and receive LEDs arenct Do not use Circuit and layout will be corrected in populated due to an error in circuit design the next board revision Do not use Circuit and connectors will be changed The general purpose LEDs see J57 are not in the next board revision populated due to an error in circuit design Copyright 2010 2011 GreenArrays Inc 10 08 11 5 M GreenArrays Application Note ANOO04 revised 10 08 11 IMPORTANT NOTICE GreenArrays Incorporated GAI reserves the right to make corrections modifications enhancements improvements and other changes to its products and services at any time and to discontinue any product or service without notice Customers should obtain the latest relevant information before placing orders and should verify that such information is current and comple
5. 6 and press the host chip reset button CO RST on the lower left corner of the board then hit the space bar on the terminal to auto baud eForth The terminal should display this eForth btc 20110826 ga144 20110826 ok Hit the enter key You should see another ok which indicates that a great deal of the board is working Please contact us right away if you do not see these things 1 6 Test GA144 Chips To completely self test the chips download the arrayForth User s Manual and the current Windows Installer from our website see 3 2 below Follow instructions in the User s Manual for your host platform to install the arrayForth software and identify and configure your COM ports You do not need to edit the colorForth code at this point but you do need to get the COM ports identified and the connections to USB ports A and C configured as instructed for your platform With USB ports A and C connected and with NO BOOT jumper J26 installed run arrayForth as per instructions for your platform Type the following phrases to run self tests substituting the actual COM port for USB A host IDE for 10 and the port for USB C target IDE for 12 10 selftest runs factory tests on host chip 12 selftest runs factory tests on target chip 10 autotest tests target chip under host chip control using synchronous boot and tests SERDES between the chips Each word or number is entered by the space or ENTER keys To delete a word or number bef
6. M GreenArrays Application Note ANO04 revised 10 08 11 Getting Started with Evaluation Board EVB001 The GreenArrays EVB001 Evaluation Board is a versatile and powerful application development platform for the GA144 1 20 chips As such it has many configuration options The current Printed Circuit Board PCB revision shown on the silkscreen is 0 1 1 and it is currently shipped with a starter eForth that may be booted from flash and with configuration settings as shown herein Please familiarize yourself with this information before connecting anything to your new board It will walk you through initial connection check out and use of the board In addition please download and read the other relevant documentation such as the Programmers Reference for the F18 computers DB001 the G144A12 Chip Data Book DB002 the Evaluation Board Data Book DB003 and the Programmers References for arrayForth eForth polyFORTH and other software as appropriate The current editions of all GreenArrays documents including this one may be found on our website at http www greenarraychips com It is always advisable to ensure that you are using the latest documents before starting work Your satisfaction is very important to us Please contact Hotline greenarraychips com if you have questions or need help with using your board In this edition the photographs have been improved for greater clarity Contents Initial Check Out
7. a 3084 Host 708 1 FromPortB 5X6 Host 200 17 ToPortB 7 amp s Host 100 17 From PortC 9 fS10 Target 708 17 ToPortc 11012 Target 708 1 Target Chip Reset AN J22 LP target USB C RTS signal 3 AN RESET Target reset circuit 5 6 pin Host Chip Reset and Boot 120 RESET pin f 1 RESET pin USBARTS 93 4 Reset ckt amp 125 3 J25 P2 SPI Flash RST pin halal Host reset ckt amp J20 4 J26 21 Host 705 17 32 NO BOOT when IN SD MMC Socket Signals Socket pins J38 J40 SPI bus signals CLK SCLK DAT3 CS CMD SI DATO SO Host Target Communication J35 a1 Host 300 17 N2 Target 300 17 J34 a1 Host 300 1 N2 Target 300 1 SPI Bus Expansion J39 21 Host 600 17 hS2 FLASHENABLE J37 FLASH Af Inputs to NAND ENABLE on Output low enables SPI bus MMC on SPI bus After setting the board up in this way provide input power to the regulator using either a wall wart in J2 or any of the three USB connections J3 J9 or J18 Your voltmeter should indicate very nearly 1 8 volts We do not recommend checking resistance between Vpp and ground on this board because many meters apply high voltages exceeding many chips limits When the checks are complete re insert the power select jumpers If you use a wall wart power source it needs to provide 3 6 to 19 5 volts a lower limit of 4v is more practical
8. he use of GAI products in such safety critical applications GAI products are neither designed nor intended for use in military aerospace applications or environments unless the GAI products are specifically designated by GAI as military grade or enhanced plastic Only products designated by GAI as military grade meet military specifications Buyers acknowledge and agree that any such use of GAI products which GAI has not designated as military grade is solely at the Buyer s risk and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use GAI products are neither designed nor intended for use in automotive applications or environments unless the specific GAI products are designated by GAI as compliant with ISO TS 16949 requirements Buyers acknowledge and agree that if they use any non designated products in automotive applications GAI will not be responsible for any failure to meet such requirements The following are trademarks of GreenArrays Inc a Nevada Corporation GreenArrays GreenArray Chips arrayForth and the GreenArrays logo polyFORTH is a registered trademark of FORTH Inc www forth com and is used by permission All other trademarks or registered trademarks are the property of their respective owners For current information on GreenArrays products and application solutions see www GreenArrayChips com Mailing Address GreenArrays Inc 774 Mays Blvd 10 PMB 320
9. ithout alteration and is accompanied by all associated warranties conditions limitations and notices Reproduction of this information with alteration is an unfair and deceptive business practice GAI is not responsible or liable for such altered documentation Information of third parties may be subject to additional restrictions Resale of GAI products or services with statements different from or beyond the parameters stated by GAI for that product or service voids all express and any implied warranties for the associated GAI product or service and is an unfair and deceptive business practice GAI is not responsible or liable for any such statements GAI products are not authorized for use in safety critical applications such as life support where a failure of the GAI product would reasonably be expected to cause severe personal injury or death unless officers of the parties have executed an agreement specifically governing such use Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications and acknowledge and agree that they are solely responsible for all legal regulatory and safety related requirements concerning their products and any use of GAI products in such safety critical applications notwithstanding any applications related information or support that may be provided by GAI Further Buyers must fully indemnify GAI and its representatives against any damages arising out of t
10. ny questions about correct procedures please check our website or contact the hotline for more information 1 2 Factory Default Jumper Settings Begin by setting all jumpers to the default settings as we shipped the board to you Please refer to this illustration and to the detailed information that follows _ errr se ee eS ee 3 GA144 Chip 1 Target C O oo K C e C O Bleleleles _ elelele olol tii AOO GAW4 a 2 Copyright 2010 2011 GreenArrays Inc 10 08 11 1 2 1 Table of Jumpers Host and Target Power Select External Host Pwr External Host Pwr Vool and A to Host Main 1 8v Bus e AEM External Target Pwr 2 VoCtoTarget S3 Main 1 8v Bus External Target Pwr 2 Vool to Target A3 Main 1 8v Bus External Target Pwr 2 VppA to Target 93 Main 1 8v Bus 1 3 Check the Power Supply In the factory we check the power supply before applying DC power to most of the board Begin by removing all of the power select jumpers J10 J11 J14 J15 and J16 as shown here Connect a voltmeter as shown all four pins of header J29 near the Target chip are ground and pin 3 right side of any of the power select headers is connected to the output of the on board switching regulator ANO04 Getting Started with Eval Board EVBOO1 USB Port Data Connections to Chips From PortA 14f 2 Host 708 17 ToPort
11. ona type N connector positive voltage on center pin If the supply can produce 4 5 to 5 watts then it should be able to power the 80 efficient switching regulator at its maximum rated output of 2A at 1 8v Copyright 2010 2011 GreenArrays Inc 10 08 11 ANO04 Getting Started with Eval Board EVBO0O1 1 4 Identify and Set up COM Ports for USB A B C Each USB connector identified as A B and C reading left to right goes to an FTDI USB to serial adaptor chip These have unique serial numbers for the benefit of systems that use them to assign a permanent COM port number to each device If using Windows or Parallels attach the cables one at a time identify the COM port numbers and using Device Manager find Advanced Port Settings Change Latency Timer from default 16 ms to 1 ms and change USB Transfer Sizes from default 4096 to 128 bytes These settings will greatly improve performance Subsequently each port may be used at any baud rate from 19 200 to 921 600 See the arrayForth User s Manual installation sections for more information and for other platforms Please contact us right away if this information does not meet your needs However you do it you must keep track of which COM port numbers connect to which of the board s USB ports 1 5 Simple Confidence Test using eForth Connect any serial terminal emulator program such as PuTTY or HyperTerm to USB port B 8 data bits no parity one stop bit and no flow control Remove NO BOOT jumper J2
12. ore entering it use backspace While a test is running you will see a screen like the one shown here The test status is initially busy in grey and while the test is running the green numbers following the the magenta variable names are updated as the testing progresses When testing is completed the busy status changes to ok as shown in green or fail in red The expected result is obviously ok Please contact us right away if you do not see the expected results or if you have any difficulty in running these tests ats target test given host port functions f E S P A i hi oe a re E Copyright 2010 2011 GreenArrays Inc 10 08 11 ANO04 Getting Started with Eval Board EVBO01 2 Move On to Programming Now that you ve verified the integrity of your board and its connections with a host machine it s time to take a closer look at the three main development tools used in programming our chips e arrayForth is currently the main tool for working with F18 code Editing its source in colorForth representation compiling it making HTML listings debugging it interactively using the IDE generating boot streams and writing flash This system is written in the Intel IA32 instruction set x86 and runs on Microsoft Windows systems including Windows hosted by Mac Parallels as well as unix systems using WINE e eForth is avery simple and portable implementation of ANS Forth This particular implementation runs on a
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