Axiohm APOS PRINTER SERIES Manual de usuario Pagina 112

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APOS Premium Printer Series User Manual Page 111 /136 Reference: FDE 3107312 Issue A
S
ELECT FLASH MEMORY SECTOR TO DOWNLOAD
Selects the flash sector (nn) for which the next download operation applies.
The values of the possible sector are restricted, depending upon the flash part type.
The printer transmits an ACK if the sector number is acceptable or an NAK if the sector number is not
acceptable. Sector numbers start at 0
ASCII
GS STX nn
Hexadecimal 1D 02 nn
Decimal
29 2 nn
Value and Range of n 0-15 = 1M bytes Flash
Exceptions : Available only in download mode.
G
ET FLASH FIRMWARE CRC STATUS
Causes the printer to calculate the CRC for the Flash firmware code space and transmits the result.
This is performed normally after downloading completely a new firmware to verify that the downloaded
firmware is valid
The printer transmits ACK if the calculated CRC is correct; NAK if the CRC is incorrect
ASCII
GS ACK
Hexadecimal 1D 06
Decimal
29 6
R
ETURN BOOT SECTOR CRC
Returns the CRC calculated over the boot sector code space.
ASCII
GS BEL
Hexadecimal 1D 07
Decimal
29 7
Formulas
ACK <low byte> <high byte>
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