Motorola Axiom CMD11E1 Manuel de service

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10JUMPERSThe CMD11E1 board is shipped from the manufacturer with the following default jumper settings:JP1 = OFF JP3 = ON JP6 = ON JP9 = OFFJP2 = OFF

11Memory Selection Jumpers JP3 – JP10The factory setting for the jumpers should be correct for the memory devices that came with yourboard. If you ad

12PORTS AND CONNECTORSLCD_PORTThe LCD Display interface is connected to the data bus and memory mapped to locations $B5F0through $B5F3. Addresses $B5

13SERIAL PORTSThe onboard serial port COM1 is a simple three wire asynchronous serial interface with hard wiredClear to Send (CTS) and Data Terminal R

14SS: KEBOARDThe SS:KEYBOARD interface is available but not brought out to a connector. It can beimplemented with software drivers through the SPI fea

15AUX_PORTThe AUX_PORT connector is a dual row 13pin Berg-style connector (26 pins total)configured as follows:25 23 21 19 17 15 13 11 9 7 5

16BUS_PORTThe BUS_PORT supports off-board parallel devices. Power (+5V), ground, address lines, datalines, and control lines are brought out to this

17TROUBLESHOOTINGThe CMD11E1 board is fully tested and operational before shipping. If it fails to functionproperly, inspect the board for obvious ph

18Tips and SuggestionsFollowing are a number of tips, suggestions and answers to common questions that will solve mostproblems users have with the CMD

19TABLESTABLE 1. LCD Command CodesCommand codes are used for LCD setup and control of character and cursor position. Allcommand codes are written to

2CONTENTSGETTING STARTED... 3Installing the Software...

20TABLE 3. Buffalo Monitor CommandsASM [<address>] Assembler/DisassemblerBF <addr1> <addr2> <data> Block fill memory with dat

3GETTING STARTEDThe Axiom CMD11E1 single board computer is a fully assembled, fully functional developmentsystem for the Motorola 68HC11E1 microcontro

4If you do not see the buffalo message prompt like that above, or if the text is garbage, see theTROUBLESHOOTING section at the end of this manual.Sup

5are available or you can use the free EDIT or NOTEPAD programs that come with your computer.Once your source code is written and saved to a file, you

6HELLO.LST a common listing file which shows the relationship between source andoutputThe listing file is especially helpful to look at when debugging

7Programming External EEPROMWhen finished with program development you can program your application into EEPROM so itexecutes automatically when you a

8MEMORYADDRESS DECODINGAddress decoding is accomplished using a GAL16V8 programmable logic device. Addresslines A<8:15>, AS (address strobe), R

9MEMORY MAPThe following memory map is for a 68HC11E9 as shipped in this development board. Other68HC11 devices in the A and E series may also be use