TH250
Programmer’s Guide
119
n = 49 (ASCII n = 1) HEX 31
This command erases all 64K flash memory sectors allocated to user-defined character and logos
storage. Those sectors should be erased in two situations: when the logo definition area is full and
an application is attempting to define new logos, and when an application wants to replace one
user-defined character set with another. In both cases, all logos and character set definitions are
erased and must be redefined.
n = 50 (ASCII n = 2) HEX 32
This command erases all sectors available for user data storage.
n = 51 (ASCII n = 3) HEX 33
This command erases all sectors available for permanent fonts.
Erases a page of flash memory and sends a carriage return when the operation is complete.
Related information
See command “Flash memory user sectors allocation” (1D 22 55 n1 n2).
See also command “Expanded flash memory allocation” (1D 22 80) and “Select flash area” (1D 22
81 n).
Important:
While erasing flash memory, the printer disables all interrupts, including
communications. To provide feedback to the application, the printer responds to the application
when the erase is complete with a 0D (Hex). After sending the erase user flash sector (1D 40 n)
command, an application should wait for the response from the printer before sending data.
Otherwise, data will be lost. If an application is unable to receive data, it should wait a minimum of
ten seconds after sending the erase user flash sector (1D 40 n) command before sending data.
User storage status
ASCII
Hexadecimal
Decimal
Value of
m
:
GS 0x97 m n
1D 97
m n
29 151
m n
m
specifies the type of stored object to be reported:
m
= 0 return the kilobytes (1024) of free user RAM,
n
= 0 gets largest free block size
n
= 1 gets the total size free
m
= 1 return the kilobytes of free character & logo flash memory,
n
= 0
m
= 3 return the CRC of a logo indexed by
n
m
= 5 return the CRC of a macro that has been stored,
n
= 0
m
= 6 return the number of LEGACY trigger slots open
m = 7
return the kilobytes of free permanent flash,
n = 0
For
m
= 0 the value of n selects a return of either the largest free block or total free size, since
contiguous allocation cannot be assumed as this area is completely under user control through
address parameters.
n
= 0 if only one instance of an object type is allowed (macro, user data, user defined characters).
n
is the item index when m ore than one object of type
m
is possible
n
<= FE, see the comments about logo indexes
n
= FF : return a list describing all the existing items of type
m
Summary of Contents for TH250
Page 1: ...TH250 Thermal Printer Programmer s Guide January 2016 ...
Page 153: ...TH250 Programmer s Guide 148 Character code table Page 1 PC850 Multilingual Latin I ...
Page 154: ...TH250 Programmer s Guide 149 Character code table Page 2 PC852 Latin II ...
Page 155: ...TH250 Programmer s Guide 150 Character code table Page 3 PC860 Portuguese ...
Page 156: ...TH250 Programmer s Guide 151 Character code table Page 4 PC863 Canadian French ...
Page 157: ...TH250 Programmer s Guide 152 Character code table Page 5 PC865 Nordic ...
Page 158: ...TH250 Programmer s Guide 153 Character code table Page 6 PC858 Multilingual I Euro ...
Page 159: ...TH250 Programmer s Guide 154 Character code table Page 7 PC866 Russian ...
Page 160: ...TH250 Programmer s Guide 155 Character code table Page 8 WPC1252 Latin I ...
Page 161: ...TH250 Programmer s Guide 156 Character code table Page 9 PC862 Hebrew ...
Page 162: ...TH250 Programmer s Guide 157 Character code table Page 10 PC737 Greek ...
Page 163: ...TH250 Programmer s Guide 158 Character code table Page 11 PC874 Thai ...
Page 164: ...TH250 Programmer s Guide 159 Character code table Page 12 PC857 Turkish ...
Page 165: ...TH250 Programmer s Guide 160 Character code table Page 13 WPC1251 Cyrillic ...
Page 166: ...TH250 Programmer s Guide 161 Character code table Page 14 WPC1255 Hebrew ...
Page 167: ...TH250 Programmer s Guide 162 Character code table Page 15 KZ_1048 Kazakh ...
Page 168: ...TH250 Programmer s Guide 163 Character code table Page 16 WPC1254 Turkish ...
Page 169: ...TH250 Programmer s Guide 164 Character code table Page 17 WPC1250 Central Europe ...
Page 170: ...TH250 Programmer s Guide 165 Character code table Page 18 WPC28591 Latin 1 ...
Page 171: ...TH250 Programmer s Guide 166 Character code table Page 19 WPC28592 Latin 2 ...
Page 172: ...TH250 Programmer s Guide 167 Character code table Page 20 WPC28599 Turkish ...
Page 173: ...TH250 Programmer s Guide 168 Character code table Page 21 WPC28605 Latin 9 ...
Page 174: ...TH250 Programmer s Guide 169 Character code table Page 22 PC864 Arabic ...
Page 175: ...TH250 Programmer s Guide 170 Character code table Page 23 PC720 Arabic ...
Page 176: ...TH250 Programmer s Guide 171 Character code table Page 24 WPC1256 Arabic ...
Page 177: ...TH250 Programmer s Guide 172 Character code table Page 25 WPC28596 Arabic ...
Page 178: ...TH250 Programmer s Guide 173 Character code table Page 26 KATAKANA Asia ...
Page 179: ...TH250 Programmer s Guide 174 Character code table Page 27 PC775 Baltic ...
Page 180: ...TH250 Programmer s Guide 175 Character code table Page 28 WPC1257 Baltic ...
Page 181: ...TH250 Programmer s Guide 176 Character code table Page 29 WP28594 Baltic ...