Autosite_Users_Manual - 第103页

Trans lation Fo rmats AutoSite User Manual B-5 ASCII Binary Format, Codes 01, 02, and 03 (or 05, 06, and 07) In these formats, bytes are record ed in ASCII codes w ith binary digit s represented by Ns and Ps, L s and Hs,…

Translation Formats

B-4 AutoSite User Manual

General Notes

Some information about data translation is listed below:

Note: Formats 10, 11, and 89 do not function properly unless you select NO

parity and 8-bit data.

Compatibility

When translating data, you may use any remote source that produces

formats compatible with the descriptions listed in this section.

Formats with Limited

Address Fields

Some formats are not defined for use with address fields greater than

64K. Thus, if you transfer a block greater than 64K, the address fields that

would be greater than 64K may wrap around and overwrite data

transferred in previous data records. Formats 70 through 86, and 90 may

exhibit this characteristic.

Hardware Handshaking

Hardware handshaking may be used if compatible with the host

interface by connecting the appropriate lines at the serial port interface.

Hardware handshake (CTS/DTR) is enabled as the default. However, if

those signals aren’t connected, the programming electronics sense this

and communicate using software handshake (XON/XOFF). The

programmer always uses software handshake regardless of whether

hardware handshake is enabled.

Leader/Trailer

During output of all formats except 89 (HP 64000), a 50-character leader

precedes the formatted data and a 50-character trailer follows. This

leader/trailer consists of null characters. If the null count parameter is

set to FF hex, then the leader/trailer is skipped. To set the null count, go

to the More Commands/Configure/Edit/Communication Parameters

screen and set the Number of Nulls parameter. If in CRC, use the CRC

command to set the null count.

Translation Formats

AutoSite User Manual B-5

ASCII Binary Format, Codes 01, 02, and 03(or 05, 06, and 07)

In these formats, bytes are recorded in ASCII codes with binary digits

represented by Ns and Ps, Ls and Hs, or 1s and 0s, respectively. See

Figure B-1. The ASCII Binary formats do not have addresses.

Figure B-1 shows sample data bytes coded in each of the three ASCII

Binary formats. Incoming bytes are stored in RAM sequentially starting

at the first RAM address. Bytes are sandwiched between B and F

characters and are separated by spaces.

Data can also be expressed in 4-bit words. The programmer generates the

4-bit format on upload if the data word width is 4 bits. Any other

characters, such as carriage returns or line feeds, may be inserted between

an F and the next B.

The start code is a nonprintable STX, which is a CTRL-B (the same as a

hex 02). The end code is a nonprintable ETX, which is a CTRL-C (the

same as a hex 03).

Figure B-1

An Example of ASCII Binary Format

BPPPPPPPPF BPPPPPPPPF BPPPPPPPPF BPPPPPPPPF

FORMAT 01 (OR 05)

BHHHHHHHHF BHHHHHHHHF BHHHHHHHHF BHHHHHHHHF

FORMAT 02 (OR 06)

B11111111F B11111111F B11111111F B11111111F

FORMAT 03 (OR 07)

LEGEND

Start Code - nonprintable STX - CTRL B is the optional Start Code

Characters such as spaces, carriage returns and line feeds may appear between bytes

End Code - nonprintable ETX - CTRL C

0074-2

Translation Formats

B-6 AutoSite User Manual

Note: Data without a start or end code may be input to or output from the

programmer by use of alternate data translation format codes. These are

ASCII-BNPF, 05; ASCII-BHLF, 06; ASCII-B10F, 07.

A single data byte can be aborted if the programmer receives an E

character between B and F characters. Data will continue to be stored in

sequential RAM addresses. Data are output in 4-byte lines with a space

between bytes.