Chapter 6: Programming InformationA794 Owner’s Guide
Download to Active Flash Sector
ASCII | GS DC1 aL aH cL cH d1… dn |
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Hexadecimal | 1D 11 aL aH cL cH d1… dn |
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Decimal | 29 17 aL aH cL cH d1… dn |
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Value of aL: | low byte of the address |
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Value of aH: | high byte of the address |
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Value of cL: | low byte of the count |
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Value of cH: | high byte of the count |
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Value of d: | data bytes, |
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Value of n (for number of data bytes) | Range of Address (aL aH) | Range of Count (cL cH) | |
((cH * 256) + cL) |
Range: Addresses run from 0 to 64K.
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.
Related Information
Available only in Download Mode.
Reset Firmware
ASCII | GS (SPACE) |
Hexadecimal | 1D FF |
Decimal | 29 255 |
Reboots the printer.
138 | December 1999 |