HP 9835A Programming Manual page 151

110 Handling
Chapter
7
Table of Contents
Peripheral-Processor Communication> > , , > , , ,
Interfaces> .. , > ....... , .. > , ... , """"
Registers ' , .. , >
Select Codes, , , ,
Status and Control Registers , ..
133
134
134
134
136
Status and Flag Lines, , , , . , , , . , , , .. , . , , , .. , , , , , ., .'" .. > , , . , , > , , . , , , , , . , , , , 137
Progra mmed I
10 ' ., , ... , .. ',., .... ",
,>""".,., ,. > , , , , . " , ..... >. , ... ,. 138
Interrupt I I
a ' .... , , , . , , , .. , .. , , . , , .. ,
> ,. ".",.""."".,., .. ,.,.", , .. " .. 138
Priorities. , . , , .. ,.",.,., ... ,.",., .. ".,.,., ..... > . > .. > . , , ... , . , .. ,.,. > .. 140
Interrupt Service Routines and Linkage .... > , .. > .. , .... , ... , .... , ....... , ..... 140
Access ......... , .. , .. , , ..... , ... " , " , " , , .. ,
< • , • < • • • "
• • " . " < " " , • • • " .
141
Utility: Isr _access. , .... , ... " . , . " . , , , ... , " , , . ,
",., ,.,.,." .. ,.,. ",143
State Preservation and Restoration, ...
< • , . , • • ' < " , " , • , • , , , , • , , < " ' , . , < , < • • • ,
145
Indirect Addressing in ISRs ... , . , , .. , , , . " , .. ,.. ." .. ,"... " ... " .. " ... , .... 146
Direct Memory Access (DMA) . , , " .. , , " . , , " .. , , " .. , " , , .... , . ,
< " • , , • , , • , , , " • , ,
147
DMA Registers, , " ... " ....... , " .. " " , , . , . , , . , , . " ... , .. " ," ' .. , .. ,", .... , .. 148
DMA Transfers .. ,
< " , • , , • , " " < . " , " " , , " • • , • • "
>. ,.,.""" ... "."""",, 149
BASIC Branching on Interrupts ," .... " .. ",.""", .... ,.,.,.,",.,..... . " " " . 150
ON INT Statement, .. , . , , , , " " .. ,".,. " " " , ... , ... ,.:.,"",. " ..
< " • , • • •
150
Signalling, , , , .. , , , . , , . , , , .. , .. , , , . , " , . , , , , , , , , ... , ... , .. ,.' , . , , . , , , ... 151
Additional Pre-Defined Symbols, . , " , , . , . , > , . , . , . , , , , , .. , ,
< , , , . . , . " " • • " . ,
153
Prioritizing ON INT Branches, .. , , .... , . , " ... , , .. , , , , , . , , , " " .. " ,., .. , ... 153
Environmental Considerations> . , , .... , , .. , .. , , , , , ,
, . , . " < , • • < " • • • • " • •
155
Disabling ON INT Branching •..•. , ••• " •••. <.
156
Mass Storage Activities. . . .. .., .... ,' .... , ..... ,.. . ., '"
<
> . , .. > , .. , 156
Reading from Mass Storage .. , .. ,
> • • • • < • • , • • • • , • • • • • > • • , , , • • , • > • •
157
Utility: Mm _read_start:
> • • • " . . > , • • ,
>.,
> . ,
>., .. '
>
158
Utility: Mm _read _ xfer .
, . >
159
Writing to Mass Storage, .
> , , • , • • • , < •
> , ,
< • • , , , • , • • . ,
> .. , , . , .
< • • , , •
160
Utility: Mm _write_start
> , , . , . , . , • •
< , , • , • , • • < • , , , . , " , . " • • , . " • • • •
> .. , 161
Utility: Mm _write _test,
< ,
> , , .. , , , . ,
< •
> . .. >.,
< , , • , , •
> , > , . , , .... ,
>
161
System File Information, , , .. >,
> • • >
> , ,
> , •
> ..... , , , . > , ,
>
. , . > • • , > . " , . > ,
>.
163
Utility: Get_file _info. , ....... , , . , . , .
>
" , .. " " " >.,.
> .... , .. 164
Utility: Put_file_info .. ,
> ,
, .. "" 165
Printing
> . ,
>, .. , ...
> . ,
>.,166
Utility: Printer_select
Utility: Print_ stnng
" .. > ...
>
> • • • • •
>
< " .
> .......
> • • ,
< , • • •
166
" , . > , • • • • ,
> • • • • ,
> . ' • •
>,
> . , • • • •
> ,
167