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xiom
anufacturing
717 Lingco Dr., Suite 209 Richardson, TX 75081 • (972) 994-9676 FAX (972) 994-9170
email: Gary@axman.com • web: http://www.axman.com
2000
Development Board for the Motorola 68HC11E1
CMD11E1
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CONTENTS CONTENTS GETTING STARTED ................................ ................................ ............................ 3 Installing the Software ................................ ................................ ..... 3 Board Startup ................................ ................................ .................. 3 Support Software ................................ ................................ ............ 4 Software Development ................................ ..................
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GETTING STARTED The Axiom CMD11E1 single board computer is a fully assembled, fully functional development system for the Motorola 68HC11E1 microcontroller, complete with wall plug power supply and serial cable. Support software for this development board is provided for Windows 95 and NT Installing the Software Board Startup 3 Your board is now ready to use! 4. >_ BUFFALO 3.4AX – Axiom Version of the Motorola Monitor / Debugger character. in the Terminal window. Press the ENT
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Support Software interfacing with other programs running on the CMD11E1, such as the Buffalo Monitor or the In addition to the terminal interface, this program also provide an easy to use memory Software Development Software development on the CMD11E1 can be performed using the Buffalo Monitor utility to the EEPROM in U7 using the provided utility called AxIDE. After setting the appropriate TUTORIAL This section was written to help you get started with the specifics of the CMD11E1 software Crea
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S-Record (hex) format. This type of output file usually has a .MOT, .HEX or .S19 file extension and is in a format that can be read by the programming utilities to be programmed into the It's important to understand your development board's use of Memory and Addressing when writing source code so you can locate your code at valid addresses. For example, when in do this with ORG statements in your source code. Any lines following an ORG statement will . ORG $1040. When finished debugging, yo
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Running your application After creating an S-Record file you can "upload" it to the development board for a test run. The If you haven’t done so already, verify that the CMD11E1 board is connected and operating ↵ ↵ ↵ ↵ ↵ If everything is working properly you should see the message “Hello World” echoed back to your terminal screen then, since we return at then end of our program, a line containing the You can modify the hello program to display other strings or do anything you want. T
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Programming External EEPROM * * * * o * To return to the buffalo monitor program, repeat the above steps starting with number 6, (in the AxIDE program directory) instead of HELLO.S19. The buffalo 7 monitor should execute again the next time the board is powered on. BUF34X.S19 substituting and the “Hello World” prompt should be displayed in the terminal window. Cycle power or press RESET on the board. Your new program should start automatically 9. When finished programming, re
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MEMORY ADDRESS DECODING Address decoding is accomplished using a GAL16V8 programmable logic device. Address lines A<8:15>, AS (address strobe), R/W (read/write), and E (clock) are processed to provide the memory control signals as shown below by default. Custom configurations, differing from that shown below, are also possible. Contact the factory for assistance in redefining the memory map if required. Output enable to U5, U6, and U7 Write enable to U5 direct, and to U6 and U7 through jumper
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MEMORY MAP The following memory map is for a 68HC11E9 as shipped in this development board. Other the CONFIG register. Consult the HC11 technical reference manual on the support CD for FFFF FFFE - - - - - - - - - - - - - - - - - - - - - Memory Socket U7 (8K device) (Buffalo Monitor default) E000 DFFF Program or Data Memory B800 B7FF HC11 Internal EEPROM in U1 Program or Data B600 B5FF Peripheral Area CS0 – CS7 CS7 = B5F2-B5FF CS5 = B5D0-B5DF CS2 = B5A0-B5AF LCD = B5F0-B5
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JUMPERS Memory socket U5 is shipped with a 32K byte RAM device. U7 is shipped with an 8K byte MODE Select Jumpers – JP1 and JP2 take MODB to ground. These two jumpers allow selection of any of the following modes of ON ON Special Bootstrap OFF ON Special Test ON OFF Normal Single Chip OFF OFF Normal Expanded (default) Buffalo Trace Jumper – JP13 10 other connections are made to the XIRQ or PA3 I/O pins of the 68HC11. interrupt service for the Buffalo Trace functions. Use caution when instal
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Memory Selection Jumpers JP3 – JP10 JP8 JP9 JP10 OFF OFF ON 8k EEPROM < DEFAULT > OFF OFF OFF 8k EPROM. OFF ON OFF 32k EPROM. ON OFF ON 32k EEPROM. JP10 write protects U7 memory device when OFF. JP4 JP5 JP7 JP6 OFF OFF OFF ON OFF OFF OFF OFF 8k EPROM. OFF ON ON OFF 32k EPROM. ON OFF ON ON 32k RAM or EEPROM. < DEFAULT > JP6 write protects U6 memory device when OFF. = memory type you can look up the part number in a catalog or device manual. If the chip is by 11 Atmel™ or XICOR™ it is prob
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PORTS AND CONNECTORS LCD_PORT and located to the right of the LCD connector is used to adjust the contrast of the LCD display by A list of valid command codes is provided in the Tables section at the back of this manual. +5V 2 1 4 3 6 5 /RW 8 7 9 KEYPAD The KEYPAD Connector is an eight position connector that implements 4 bits of AUX_PORTC and 4 bits of AUX_PORTA as a simple keypad interface. This interface is implemented as a 1 2 3 4 5 6 7 8 ¨ ¡ ¡ ¡ ¡ ¡ ¡ ¡ C4 C5 C6
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SERIAL PORTS 5 • 9 à 4 à 8 3 • 7 2 6 1 1 • 6 2 7 • 3 8 4 9 5 COM2 Option Jumpers RX_SEL 2W / 4W 1 2 3 1 - 2 = RS232 1 ¡ 1 - 2 = RS485 / 2W ¡¡¡ 2 ¡ 2 - 3 = RS422 / 4W 3 ¡ 422/485 OUT 4 ¡ 4W Transmit 3 ¡ 4W Transmit 2 ¡ 4W Receive, 2W Transmit / Receive 1 ¡ 4W Receive, 2W Transmit / Receive 13 B(-) A(+) B(-) A(+) 2 - 3 =
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SS: KEBOARD The SS:KEYBOARD interface is available but not brought out to a connector. It can be recommended because it is capable of nibble or 4 bit configuration. While such a dual parallel matrix will work, it dedicates the SPI to keypad use only. If implemented through the SPI as a lines defining E<1:4> for a total of five slave serial devices. (Note: this still requires E<1:4> be 1 ¨ +5 2 ¡ 3 ¡ PD2/SI 4 ¡ PD3/SO 5 ¡ PD4/SCLK 6 ¡ PD5/SEL0 7 ¡ SEL1 E1 8 ¡ SE
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AUX_PORT 25 23 21 19 17 15 13 11 9 7 5 3 1 The AUX_PORT connector is a dual row 13 ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¨ pin Berg-style connector (26 pins total) ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ 26 24 22 20 18 16 14 12 10 8 6 4 2 1 AUX PA7 2 AUX PA6 3 AUX PA5 4 AUX PA4 • AUX PA @ $B5F4 5 AUX PA3 6 AUX PA2 • AUX PB @ $B5F5 7 AUX PA1 8 AUX PA0 • AUX PC @ $B5F6 9 AUX PC7 10 AUX PC6 • AUX PORT CONTROL 11 AUX PC5 12 AUX PC4 REGISTER @ $B5F7 13 14 +5 15 AUX PC0 16 AUX
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BUS_PORT The BUS_PORT supports off-board parallel devices. Power (+5V), ground, address lines, data BUS_PORT 1 ¨ ¡ 2 D3 D2 3 ¡ ¡ 4 D4 D1 5 ¡ ¡ 6 D5 D0 7 ¡ ¡ 8 D6 A0 9 ¡ ¡ 10 D7 A1 11 ¡ ¡ 12 A2 A10 13 ¡ ¡ 14 A3 OE 15 ¡ ¡ 1 6 A4 A11 17 ¡ ¡ 18 A5 A9 19 ¡ ¡ 20 A6 A8 21 ¡ ¡ 22 A7 A12 23 ¡ ¡ 24 A13 W/R 25 ¡ ¡ 26 CS0 CS1 27 ¡ ¡ 28 CS2 CS3 29 ¡ ¡ 30 CS4 CS5 31 ¡ ¡ 32 +5 33 ¡ ¡ 34 A/D REFERENCE 16 be removed in order to apply an external reference to the VRH and/or VRL inputs. are identified on the silk
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TROUBLESHOOTING TROUBLESHOOTING The CMD11E1 board is fully tested and operational before shipping. If it fails to function properly, inspect the board for obvious physical damage first. Ensure that all IC devices in sockets are properly seated. Verify the communications setup as described under GETTING STARTED and see the Tips and Suggestions sections following for more information. The most common problems are improperly configured communications parameters, and attempting to use the wrong
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Tips and Suggestions Tips and Suggestions problems users have with the CMD11E1 development system. You can download the latest AxIDE • If you’re program code memory, make sure jumpers 1 and 2 are set parallel to the • • • Make sure the correct power is supplied to the board. You should only use a 9 volt, • If the configuration file loads (the first 100 bytes or so), but you get a time-out error when the program section begins to download, make sure the HC11 is internally configured correctl
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TABLES TABLE 1. LCD Command Codes Command codes are used for LCD setup and control of character and cursor position. All command codes are written to LCD panel address $B5F0. The BUSY flag (bit 7) should be tested before any command updates to verify that any previous command is completed. A read of the command address $B5F0 will return the BUSY flag status and the current display character location address. Code $01 Clear Display, Cursor to Home $02 Cursor to Home Entry Mode: $04 Cursor Decr
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TABLE 3. Buffalo Monitor Commands ASM [
] Assembler/Disassembler BF Block fill memory with data BR [-] []... Breakpoint set BULK Bulk erase EEPROM BULKALL Bulk erase EEPROM + CONFIG register CALL [] Execute subroutine G [] HELP Display monitor commands LOAD T Download S-records via terminal port MD [ []] MM [] MOVE [,dest>] P Proceed/continue from breakpoint RM[p,y,x,a,b,c,s,] Register modify T [
