SuperIDE Interface
Contents
1. Error read Features write Sector count Sector number Cylinder low byte Cylinder high byte Device head Command 00 Ni gt 01 B Go PO O Latch FLASH Bank Selection Register This register is located just beyond the IDE registers at offset 09 from the base address setting of the interface Bit 7 of this register is the FLASH Enable bit This bit is set by the FLASH programming routine when writing to the 23 If this program is run on a CoCo 3 then additional options are available to save a 32K ROM Cartridge or even the internal 32K ROM REMEMBER For auto start cartridges such as ROM Paks be sure to place a piece of tape over pin 8 so that the cartridge does not auto start Also insure that DIP Switch 1 of the SuperlDE Interface is in the OFF Up position Failure to do so will result in a crash when the program starts the transfer ROMXFER BAS Like GETROM BAS this program also uses FLASH BIN The convenience of ROMXFER is that it will transfer the contents of a ROM Pak or disk controllers EPROM in one Multi Pak slot to the desired FLASH bank in another Multi Pak slot CHECKSUM BAS This program will provide a checksum on a ROM or bank of FLASH returning the sum of all bytes A blank FLASH bank should return the checksum value of 0 indicating that the FLASH contains all zeros ERASE BAS This program will erase a bank of FLASH by writing all 00s2. Although our products are engineered with quality and care Cloud 9 can not guarantee that you won t run into problems If you have a problem or question please contact us via the Internet at support cloud9tech com You can also visit our website at http www cloud9tech com for up to date information on your product 27 The included BASIC software automatically detects the type of Color Computer being used and makes the proper adjustments when reading writing FLASH Refer to the source code for consideration when writing your own FLASH programming software 26 Table Of Contents SuperlDE Interface a nicilol tinue heienniadaaeue inde 1 Ser MamUal E a he le eh 1 1 AGORMGFALUIALIONS Pees ccesecestcesCecscceetcesceestecs eeeeteesceestecn eens 5 Features nice ee eee eae 5 System Requirements 2 2 2 2 ececeeeeeeeceeeeeeeceeneees 5 2 Getting Started e e e e aa 6 Examining the Interface 6 40 pin IDE MMC aCe ss cuci cect conic esi cond canecenkceuicesicenicestcpiedon 7 CPLD Programming Header 7 Activity LED ves csc td a i aa ot te add sania dd ste add ects 7 CompactFlash SOCKEL stacss cxateusd stead oxstenes ebdeas xhtceotens 8 DIP SWC Sinkas irane ena ee a aca tees 8 Jumper BIOCK sisisacisictavchsteurtenideniaatisaiesatioeataateacerateete 9 Super Expansion BUS cceeeeeeeeeeeeeeeeeeeeeeeeeeeaes 10 Real Time Clock i issii ene 10 Configuring the Imte rtace 22 lt csc bcc
3. There are 5 jumper pairs for a total of 10 pins Looking at the pins from right to left the bottom row of pins is odd numbered 1 3 5 7 and 9 and the top row of pins is even numbered 2 4 6 8 and 10 Each top and bottom pin forms a pair that may or may not be covered with a shunt The following table shows the function of each of the five pairs of jumpers Jumper Pair Function if ON Function if OFF 1 2 FBSR resets on power cycle FBSR resets on RESET 3 4 CompactFlash Socket CompactFlash is MASTER Socket is SLAVE 5 6 Bit 4 of base address Bt 4 of base is SET address is CLEAR 7 8 Bit 5 of base address Bit 5 of base is SET address is CLEAR 9 10 Bit 6 of base address Bit 6 of base is SET address is CLEAR You will learn shortly how to set these jumpers for your specific system setup Super Expansion Bus The Super Expansion Bus is a Cloud 9 expansion technology that allows addition of future peripherals to the CoCo s 40 pin bus through two high density 20 pin connectors Real Time Clock If your SuperlDE Interface has a real time clock you will see a 16 pin chip at this location The real time clock is always addressed at FF78 FF79 and FF7C irrespective of the base address of the IDE interface Configuring the Interface In order to insure that your SuperlDE Interface matches your Color Computer system it is important to set the state of the jumper
4. to the specified bank IDEPROBE BAS This program will detect the drive or drives attached to your interface and reports detailed information about each drive 22 DIP Switches 40 pin IDE connector Jumper Block CompactFlash Socket ojl Clouds arda Super DE interfad Rew Se a Super Expansion Bus R Real Time Clock CPLD Programming Header Activity LED Now that the cover is off of your interface let s go over the major parts of the circuit board 40 pin IDE Interface The 40 pin IDE connector allows you to connect one or two external IDE hard drives via a 40 pin IDE ribbon cable CPLD Programming Header This 10 pin header is used to update the logic in the Altera CPLD Activity LED This LED is activated when reading or writing to the IDE bus Accesses to both the CompactFlash Socket as well as drives on the 40 pin connector will cause the LED to activate Its location makes it easily visible on the left side of the interface when plugged into a Multi Pak or in the front of the CoCo when plugged directly into the CoCo s cartridge port 7 CompactFlash Socket The CompactFlash Socket allows you to connect widely available CompactFlash devices to the SuperlDE Interface The CompactFlash device in this socket can be configured as either a master or slave Please note that if the CompactFlash socket is in use you can only attach one external hard drive to the 40 pin IDE connector ad IMPORTANT NEVER
5. 4 Be sure the slot selection switch is set to 4 Insert the SuperlDE Distribution Diskette into the floppy drive and type RUN GETROM Follow the prompts and supply a filename The contents of that disk controller or ROM Pak will be saved to the filename When the program is complete you will be returned to Disk BASIC Now it is time to run the program to transfer the ROM on disk into the FLASH on the interface To start type RUN FLASH 19 4 Programming the FLASH The SuperlDE Utilities disk that comes with your SuperlIDE Interface contains software to extract a ROM from a ROM Pak or disk controller It also contains software to program a ROM image into any of the four FLASH banks on the interface Typically you will want to program the FLASH on the SuperlDE Interface if you intend to use it in a specific application In such a scenario the interface would be plugged directly into the side of the cartridge port with an IDE compatible DOS such as HDB DOS in one of the FLASH banks You may also want to just keep the SuperlDE Interface in a slot in the Multi Pak and have one or more ROM Paks programmed into the FLASH allowing them to be selected on the fly Let s take a look at different scenarios for programming the FLASH using the supplied utilities Programming an Existing ROM into FLASH To program a ROM Pak or disk controller ROM into the FLASH you have several options Option 1 Save a ROM
6. FLASH bank If you are switching to a FLASH bank containing a DOS such as Disk BASIC HDB DOS A DOS etc the following commands will work on a CoCo 3 POKE amp HFF59 X where X is the bank 0 3 POKE 113 0 DLOAD If the FLASH bank you are switching to contains a ROM Pak image such as a game be sure the auto switch DIP Switch 1 is in the OFF Up position and type the following on a CoCo 3 POKE amp HFF59 X where X is the bank 0 3 16 13 3 Using the FLASH One of the innovations of the SuperlDE Interface is its utilization of FLASH memory technology to store ROM code This technology totally replaces the antiquated EPROM that is found on older floppy and hard drive controllers Unlike EPROMs FLASH memory brings several benefits to Color Computer users First FLASH can be programmed in circuit without any additional hardware Second FLASH technology delivers a large amount of storage in an extremely small footprint This allows multiple ROMs to be stored in the same chip and selected via hardware or software by the user How the FLASH is Partitioned The SuperlDE Interface contains 64K of internal FLASH which is partitioned into four banks bank 0 bank 1 bank 2 and bank 3 Each bank can hold 16K of code Typically a ROM image will reside in each bank These ROM images can be DOS s such as Disk BASIC HDB DOS or A DOS etc or they can be ROM Paks such as games and applications While all banks
7. byte checksum of that page is automatically computed and stored at 710B 0C This value is the sum of all bytes in the page and can be used as a verification mechanism Special Considerations It is important to note that not all of the ROM can be read nor all of the FLASH programmed On a CoCo 2 all but the last 256 bytes FFOO FFFF of FLASH can be read written On a CoCo 3 all but the last 512 bytes S FEOO FFFF of FLASH can be read written 25 FLASH Unless you fully understand what you are doing you should never set this bit Bits 6 2 are undefined Reads of these bits will always return zero Writes to these bits are ignored Bits 1 0 are used to software select the FLASH banks 0 3 Real time Clock Registers If your SuperlDE Interface has the real time clock option those registers will always be located at addresses FF78 FF79 and FF7C Please note that this is the same area as the real time clock option for the TC 3 SCSI Controller another Cloud 9 product If you wish to use both a SuperlDE Interface and a TC 3 SCSI Controller in your system then you must insure that only one of these devices has a real time clock NOTE If a real time clock is present at this address then FF70 must NOT be used as the base address of the SuperIDE Interface FLASH Software Interface Assembly language programmers who wish to access the FLASH read write routines in FLASH BIN may do so using the following informatio
8. it s time to connect the SuperlDE Interface to your Color Computer Be sure that power is OFF on your Color Computer and your Multi Pak then insert the SuperlDE Interface is in slot 3 Your floppy disk controller should reside in slot 4 Once the controllers are firmly in place turn on your Multi Pak and then your Color Computer 12 EXEC amp HE010 Determining the Active FLASH Bank You can determine which of the four banks of FLASH memory is active by reading the FBSR Type the following assuming the SuperlDE Interface s base address is FF50 PRINT PEEK amp HFF59 17 as Disk BASIC HDB DOS A DOS etc the following commands will work on a CoCo 1 2 POKE 113 0 POKE amp HFF59 X where X is the bank 0 3 EXEC 40999 If the FLASH bank you are switching to contains a ROM Pak image such as a game be sure the auto switch DIP Switch 1 is in the OFF Up position and type the following on a CoCo 1 2 POKE amp HFF59 X where X is the bank 0 3 EXEC amp HC000 Depending upon the contents of the target FLASH bank your CoCo may go into a crash mode This is normal due to the fact that the ROM that BASIC is fetching instructions from is actually being totally replaced at the point of the POKE command If this happens press the RESET button and the code should execute properly CoCo 3 FLASH Bank Software Switching Depending on the type of ROM image there are two different methods for software selection of a
9. NEVER Insert or remove A COMPACTFLASH in the socket while the POWER IS ON To do so may damage the SuperlDE Interface and or the CompactFlash DIP Switches The DIP switch block has three switches and can be accessed even with the cover in place The switches are labeled from right to left as 1 2 and 3 and perform the following functions Switch 1 This is the auto start switch If this switch is ON in the Down position then the CART interrupt is triggered upon power up If this switch is OFF in the Up position then the CART interrupt is not triggered on power up This switch is useful if you have an auto start ROM such as a game in the selected FLASH bank You should NOT turn the auto switch on if your FLASH bank contains a DOS such as HDB DOS Switch 2 and 3 Both of these switches are used to select one of four 16K banks of the internal 64K of FLASH The following table show the settings Switch 2 Position Switch 3 Position FLASH Bank 8 5 Supplied Software The supplied SuperlDE Utilities disk provides additional software which can assist you in setting up your interface and drives properly We highly recommend that you work from a backup of your original disk All BASIC programs are saved in ASCII format and therefore will load somewhat slower from the disk To speed up subsequent loads LOAD then SAVE the program back to disk FLASH ASM FLASH BIN These two files make up t
10. Pak or disk controller EPROM s contents to disk using GETROM BAS then program the desired FLASH bank in the SuperlDE Interface using FLASH BAS 18 NOT be used as a base address as it will cause an addressing conflict to occur The following table shows how to set the jumper shunts based on the desired base address Please note that when a jumper shunt is OFF the corresponding bit is SET Address _ J5 J6 Bit 4 J7 J8 Bit 5 J9 J10 Bit 6 FF4X Shunt OFF Shunt ON Shunt ON FF5X Shunt OFF Shunt ON Shunt OFF FF6X Shunt OFF Shunt OFF Shunt ON FF7X Shunt OFF Shunt OFF Shunt OFF Setting the FLASH Reset Behavior The Flash Bank Selection Register FBSR is located at offset 09 from the base address of the interface At power up this register holds the value of DIP Switches 2 3 which determine which of the four banks of 16K appear in the CoCo s ROM space at C000 Software can modify the value in this register to automatically select a different bank of FLASH If jumper pair 1 2 contains a shunt then the contents of the FBSR will remain the same even through hardware reset and only a power cycle will cause the FBSR value to change back to the DIP switch settings If jumper pair 1 2 does NOT contain a shunt then contents of the FBSR are reset to the state of the DIP switches upon pressing the RESET button For a CoCo 1 or CoCo 2 we recommend that you keep the shunt ON sin
11. SuperlDE Interface User Manual Cloug la Super iz 8728 oF latectace a Manual Revision 1 2 May 2 2004 Cloud 9 3749 County Road 30 Delano MN 55328 Cloud 9 Telephone 763 972 3261 3749 County Road 30 www cloud9tech com Delano MN 55328 Telephone 763 972 3261 28 www cloud9tech com SuperlDE Interface 2004 Cloud 9 All Rights Reserved All portions of this hardware are copyrighted and are the proprietary and trade secret information of Cloud 9 Use reproduction or publication of any portion of this material without the prior written authorization of Cloud 9 is strictly prohibited SuperlDE Interface User Manual 2004 Cloud 9 All Rights Reserved Reproduction or use of any portion of this manual without express written permission from Cloud 9 is prohibited While reasonable efforts have been made in the preparation of this manual to assure its accuracy Cloud 9 does not assume liability resulting from any errors in or omissions from this manual or from the use of the information contained herein 7 Additional Information Disk BASIC Support Version 1 1 and later of Cloud 9 s HDB DOS product supports the SuperlDE interface If you have HDB DOS 1 0 and would like to obtain the newer version please contact Cloud 9 via email support cloud9tech com NitrOS 9 Support The SuperlDE Interface has NitrOS 9 support through the Super Driver Pack a Cloud 9 product If Problems Arise
12. can hold code only one bank is active at any given time It is up to the user to determine which bank will hold code and to which bank the interface will start from at power on There are two methods of FLASH bank selection the hardware switching method and the software switching method 14 Hardware Switching DIP Switches 2 and 3 located on the side of the SuperlDE Interface can select bank 0 1 2 or 3 as the desired bank to reference on power up Simply set up the switches for the desired bank to be active Due to the location of the DIP Switch on the interface we recommend that you turn OFF your system and remove the SuperlDE Interface to properly set the switch If the desired FLASH bank contains a DOS such as Disk BASIC HDB DOS A DOS etc then the auto start switch DIP Switch 1 should be in the OFF Up position Conversely if the desired FLASH bank contains a ROM Pak game image you can elect to turn on the auto start switch This will cause the game to auto start when your CoCo is powered up Software Switching Use of the FLASH Bank Selection Register FBSR allows you to switch to a ROM in a specific FLASH bank without necessarily having to power down your CoCo The procedure for software switching between a CoCo 1 2 anda CoCo 3 are slightly different due to the fact that the CoCo 1 2 runs BASIC from ROM whereas the CoCo 3 runs BASIC from RAM The FBSR is located at offset 09 from the base address of th
13. ce these Color Computers run from ROM Hence pressing the RESET button insures that the last value written to the FBSR remains and that the corresponding FLASH bank stays mapped into memory space 11 Reassembling the SuperlIDE Interface Now that you have configured your interface you should replace the top cover and secure it with the screw that you removed earlier Note that both the CompactFlash Socket and the DIP Switches are still accessible even with the cover in place This allows you to easily switch FLASH banks or the auto start switch without having to remove the cover Adding Drives Once you have configured the SuperlDE Interface it is time to hook one or more IDE drives You can add up to two drives to the system a master drive and a slave drive Each of these drives must be set as master and slave in order to be identified properly Refer to your drive s documentation to determine how to set your drive as a master or slave If you want to use a CompactFlash card in the built in CF socket then you can only add one hard drive to the bus via ribbon cable In this case you can also set the CompactFlash to be a master or slave by shunting jumpers 3 and 4 on the on board jumper block Remember if the shunt is ON the CompactFlash is a master and the external drive must be set as a slave If the shunt is OFF the CompactFlash is a slave and the external drive must be set as a master Connecting to the CoCo Now
14. e SuperlDE Interface So for example if the interface base address is FF50 then the FBSR is at FF59 CoCo 1 2 FLASH Bank Software Switching Depending on the type of ROM image there are two different methods for software selection of a FLASH bank If you are switching to a FLASH bank containing a DOS such 15
15. ecdtbcceec en dccecdnddeeccee 10 Setting the Base Address ceeceeeeeeeeeeeeeeeeeeeees 10 Setting the FLASH Reset Behavior 11 Reassembling the SuperlDE Interface e 12 Adding Drives care lect oe cles dota Baa eared ete etendeds 12 Connecting to the COCO cc ccccceseceencncneesneceeeeeeeeeeeees 12 Se E Tare Ai hes ELAS m E E EE A EEE AE 14 How the FLASH is Partitioned 14 Hardware Switching 15 Software Switching 2 sseeeeeeeeeeeeeeeeeeeeeeees 15 CoCo 1 2 FLASH Bank Software Switching 15 CoCo 3 FLASH Bank Software Switching 16 Determining the Active FLASH Bank n 17 4 Programming the FLASH 18 Programming an Existing ROM into FLASH 18 Supplied Softwares ccc sitet cerenkins oetaeleeeeentineles 21 FLASH ASM FLASH BIN sos des t22ccederccaderdteteaeiiade stds 21 FLASH BAS are ea lone oi iret mil rin alr nei RE 21 GETROM BAS asentaen nenea severe etuh ete tateonve as 21 ROMAPERIBAS i458 a8 cent eck cent lest n ces cont descent gevtcen pe 22 3 CHECKSUM BAS 3 ct tod i ois tod is Salah hon td ie 22 ERASE BAS erdds cesses se chss escent oh et on ak ah 22 IDEPROBE BAS taiii teieni 22 Technical Information ccccccceeeeeeeeeeeeeeeeeeeeeeeees 23 Hardware Register Layout ceeeeeeeeeeeeeeeeeeeeeeeeeees 23 IDE REGISTOS Eeer fc enteiro eieae ereen eitie eied cet 23 FLASH Bank Selection Re
16. gister sssseeeeeeees 23 Real time Clock Registers eeeeeeeeeeeeeeeeeeeeeeeeee 24 FLASH Software Interface cccccceeeeeeeeeeeeeeeeeeeeeeeees 24 Special Considerations cccssseeeeeeeeeeeeeeesseeeeeeees 25 Additional Information a ccid snes cess exc caenscaciveds Aaacesl acaddiens 27 Disk BASIC SuppOMiaisc naadeasadeadadencuadenwadnce 27 NitrOS 9 Support 2c auscs ce ccccesiek cette elec 27 If Problems ANiSe scesiveicesevnarencrpieehreeeninec eee aereeerretees 27 Offset Value 7100 Read Write Mode 00 Read ROM 01 Read FLASH FF Write FLASH 7101 Multi Pak Slot where FLASH or ROM is located 0 3 or FF if no Multi Pak is present 7102 FLASH bank to read write 0 3 7103 Page to read write 0 125 on a CoCo 1 2 0 123 on a CoCo 3 7104 Page size should be 128 7105 06 ROM base address usually C000 7107 08 Address of FLASH Bank Selection Register SFF49 FF59 FF69 or FF79 7109 0A Address of a 128 byte buffer This buffer either contains data to write to the FLASH in write mode or will hold the contents of a FLASH or ROM page read mode 710B 0C Two byte checksum of the contents of the FLASH ROM page in Read Mode Once the parameters from 7100 to 710A have been set the caller may JSR into the subroutine at 7000 and the selected operation will be performed After reading a page of FLASH or ROM a two
17. he FLASH programming routine used by the included BASIC programs The interface to the routine is documented later FLASH BAS This program uses FLASH BIN and allows you to program the contents of a disk file into a FLASH bank of your choosing GETROM BAS This program uses the assembly routines in FLASH BIN and allows you to save a ROM image from a controller or ROM Pak to disk When run GETROM BAS will prompt you for the Multi Pak slot where the ROM resides and the size of the ROM It will then obtain the ROM s contents and save it to the disk file specified 21 The program will prompt you for the following information The base address of the SuperIDE Interface The MPI slot of the SuperlDE interface The FLASH bank where the DOS will be programmed The name of the file to program RON Once the information is provided the file will be opened and its contents transferred to the appropriate bank of FLASH That s all there is to programming the FLASH 20 ON Down ON Down 0 ON Down OFF Up 1 OFF Up ON Down 2 OFF Up OFF Up 3 Each of the four 16K banks can contain either a DOS such as Disk BASIC HDB DOS or A DOS or the contents of a ROM Pak We will learn later how to burn a ROM image into the FLASH Jumper Block The jumper block allows the setting of the interface s base address as well the Flash Bank Selection Register FBSR behavior on RESET Power Up
18. n The FLASH BIN routine loads at 7000 and can be called by JSRing to that location The routine either reads or writes one page 128 bytes of the FLASH Subsequent calls are required to program an entire bank In ROM Read mode the contents of ROM Paks can also be read if the value at 7100 is 00 There is a parameter block at 7100 that is referenced by the FLASH BIN routine That parameter block contains the following offsets 24 1 Congratulations Thank you for purchasing the SuperlDE Interface another one of the fine products offered by Cloud 9 This product was designed to be used with the Radio Shack TRS 80 Color Computers 1 2 and the Tandy Color Computer 3 The SuperlDE Interface brings a wealth of storage options to your Color Computer including readily available and inexpensive CompactFlash and IDE drives Features e Full support of ATA 2 ATAPI IDE devices e CompactFlash socket for solid state storage e Uses state of the art components for low power draw and decreased part count e 64K of internal FLASH holds four distinct 16K ROM images e Super Expansion Bus for future peripherals e Easy to use FLASH programming and IDE test software e Optional real time clock for timekeeping System Requirements In order to use the SuperlDE Interface you need the following components e Radio Shack TRS 80 Color Computer 1 or 2 with 64K RAM or a 128K Tandy Color Computer 3 e Multi Pak required for cer
19. s to reflect the proper base address as well as FBSR reset behavior Setting the Base Address As shipped the interface s base address is set up at a default of FF50 to FF59 We recommend keeping this setting if possible In order to this you must verify that no other devices in your system conflict with this address allocation If you do have a conflict then a base address must be selected where there are no conflicts The interface allows a base address selection of FF4X FF5X FF6X and FF7X Jumper pairs 5 6 7 8 and 9 10 allow you to select one of these four base addresses One important note regarding base addresses If your SuperlDE Interface has a real time clock then FF70 must 10 Option 2 Use ROMXFER BAS to directly transfer the contents of a ROM Pak or disk controllers EPROM to a FLASH bank this requires a Multi Pak For illustration we will perform option 1 Your first step is to choose the disk controller or ROM Pak that contains the ROM you want to transfer to FLASH If it is a ROM Pak you will need to place tape over pin 8 to prevent the cartridge from auto starting during the transfer process f it is a disk controller then it isn t necessary to cover pin 8 In either case once the cartridge is properly prepped insert it into a free slot of the Multi Pak Slot 1 is usually a good slot for this Put your SuperlDE Interface in slot 3 of the Multi Pak and your floppy disk controller in slot
20. tain FLASH programming tasks 2 Getting Started We know you re excited about using your new SuperlDE Interface However before you plug it into your CoCo please read the following pages carefully for important configuration information Examining the Interface There are a number of jumpers and DIP switches on the SuperlDE Interface that must be set properly to reflect your particular system In order to configure the interface completely we will take it apart and familiarize ourselves with the layout of the board Follow these steps to properly disassemble your interface 1 Using a Phillips screwdriver unscrew the screw on the top of the controller case 2 Once the screw is out CAREFULLY open the case by removing the top part of the case from the bottom Put the top of the case and the screw aside and turn your attention to the bottom case and circuit board 3 Orient the circuit board in the same manner as shown in the following picture 6 Technical Information This chapter provides detailed technical information on the SuperIDE Interface including register layout and the software interface for programming the FLASH Hardware Register Layout The hardware registers are documented below IDE Registers The IDE registers of the SuperlDE Interface are arranged in the same order as the Glenside IDE Interface making it 100 compatible with that product Register Offset Function Data
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