Axiohm APOS PRINTER SERIES Manual de usuario descargar pdf (Pagina 114)

APOS Premium Printer Series User Manual Page 113 /136 Reference: FDE 3107312 Issue A

OWNLOAD TO ACTIVE FLASH SECTOR

Contains a start address (ah x 256 + al) and count (ch x 256 + cl) of binary bytes to load into the selected

sector, followed by that many bytes.

The start address is relative to the start of the sector. Addresses run from 0 to 64K.

The printer may return one of several responses. ACK means that the data was written correctly and the

host should transmit the next block. NAK means that, for some reason, the data was not written correctly.

This could mean that communications failed or that the write to flash failed.

The alternatives seem to be to retry the block or halt loading and assume a hardware failure.

ASCII

GS DC1 al ah cl ch d1…dn

Hexadecimal 1D 11 al ah cl ch d1…dn

Decimal

29 17 al ah cl ch d1…dn

Value of al

= low byte of the address (it is sent before the high byte) must be even

Value of ah

= high byte of the address (it is sent after the low byte)

Value of cl

= low byte of the count (it is sent before the high byte) must be even

Value of ch

= high byte of the count (it is sent after the low byte)

Value of d

= data bytes, from 2 to n

Value of n

(for number of data bytes)

Range of Address (al ah) Range of Count (cl ch)

((ch * 256) + cl) 0000-FFFE (hexadecimal) 0002-FFFE (hexadecimal)

Range Addresses run from 0 to 64K.

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Axiohm APOS PRINTER SERIES Manual de usuario Pagina 114