Subject:
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Save image in pbForth (srec version)
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Newsgroups:
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lugnet.robotics.rcx.pbforth
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Date:
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Thu, 11 Nov 1999 21:38:02 GMT
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Viewed:
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1417 times
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Hi Ralph,
Finally I got it to work.
Now there is XMODEM protocol and S-record writer on top of it. SAVE-SYSTEM
word has been redefined to produce S-record image.
Although upload time is up to 5 min now, instead I don't spend time anymore to
mess with other tools. ;)
And you were right, this is much more convenient.
Sergey
-- pbForth code -------------------------------------------------------------
RCX_INIT
\
\ srec.f
\ S-Record format
\
BASE @ HEX
GET-CURRENT NONSTANDARD-WORDLIST SET-CURRENT
\ utilities
' TX! VALUE 'byte! \ vector for "emit" word
: byte! ( b -- )
'byte! EXECUTE ;
: data! ( addr n -- )
0 DO
DUP C@ 'byte! EXECUTE CHAR+
LOOP DROP ;
\ s-record fields
VARIABLE srec.checksum
: srec.type! ( type -- )
[CHAR] S byte!
0 <# # #> DROP C@ byte! ;
: srec.count! ( data-size -- )
2 + 1+ \ address-size + checksum-size
DUP srec.checksum !
0 <# # # #> data! ;
: srec.address! ( addr-n -- )
DUP FF AND OVER 8 RSHIFT + srec.checksum +!
0 <# # # # # #> data! ;
: srec.data! ( data-addr data-size -- )
?DUP IF
0 DO
DUP C@ DUP srec.checksum +!
0 <# # # #> data! CHAR+
LOOP
THEN DROP ;
: srec.checksum! ( -- )
srec.checksum @ INVERT FF AND
0 <# # # #> data! ;
: srec.cr_lf! ( -- )
0D byte! 0A byte! ;
\ s-record types
: S-record! ( address data-addr data-size type -- )
srec.type!
DUP srec.count!
ROT srec.address!
srec.data!
srec.checksum!
srec.cr_lf! ;
: S0-record! ( -- )
0 S" pbForth" 0 S-record! ;
: S1-record! ( data-addr data-size -- )
OVER SWAP 1 S-record! ;
: S9-record! ( address -- )
0 0 9 S-record! ;
\ s-record dump
15 VALUE srec.data_size
: srec-data-size ( begin-addr end-addr -- data-size )
SWAP - DUP srec.data_size > IF
DROP srec.data_size
THEN ;
: srec-data! ( addr size -- )
OVER + DUP ROT DO
I OVER srec-data-size
I OVER S1-record!
+LOOP DROP ;
: srec-dump ( addr size xt-emit -- )
'byte! >R TO 'byte! \ set "emit" vector
BASE @ >R HEX \ for <# .. #>
DUP IF
S0-record! 2DUP srec-data! OVER S9-record!
THEN 2DROP
R> BASE !
R> TO 'byte! ;
: SREC-DUMP ( addr size -- )
CR ['] TX! srec-dump ;
SET-CURRENT
BASE !
\
\ x-send.f
\ Simple XMODEM protocol (sender)
\
RCX_INIT
BASE @ HEX
GET-CURRENT NONSTANDARD-WORDLIST SET-CURRENT
\ RCX utilities
: RUN-BUTTON? ( -- flag )
RCX_BUTTON DUP BUTTON_GET @ 1 AND 1 = ;
: LCD-INT ( n -- )
3002 SWAP 3001 LCD_NUMBER LCD_REFRESH ;
\ communication
: rx? ( -- flag )
RUN-BUTTON? IF ABORT" Interrupted" THEN RX? PAUSE ;
: rx@ ( -- c )
BEGIN rx? UNTIL RX@ ;
: response? ( c-request -- c-response )
0 0 timer_SET
BEGIN
0 timer_GET 0= IF DUP TX! 5 0 timer_SET THEN
rx?
UNTIL DROP RX@ ;
\ XMODEM block
1 CONSTANT <SOH>
4 CONSTANT <EOT>
6 CONSTANT <ACK>
15 CONSTANT <NAK>
80 CONSTANT block.data_size
memTop 100 - VALUE block \ tmp value for safety
: block.create ( -- )
HERE TO block
0 , 0 , 0 , \ blk-nr, offset, checksum
HERE block.data_size DUP ALLOT \ data
memTop 100 - FILL ;
: block.destroy ( -- )
block HERE - ALLOT \ restore
0 TO block ;
\ block fields
: block.number ( -- nr-addr ) block ;
: block.offset ( -- off-addr ) block CELL+ ;
: block.checksum ( -- sum-addr ) block CELL+ CELL+ ;
: block.data ( -- data-addr ) block 3 CELLS + ;
: block.next ( -- )
1 block.number +! 0 block.offset ! 0 block.checksum !
block.data block.data_size 0 FILL
block.number @ LCD-INT ; \ block nr on LCD
: block.remain ( -- n )
block.data_size block.offset @ - ;
: block.byte! ( b -- )
DUP block.data block.offset @ + C!
FF AND block.checksum +!
1 block.offset +! ;
: block.tx_header ( -- ; header: <SAH> <blk-nr> <FF - blk-nr> )
<SOH> TX!
block.number @ 1+ DUP TX!
FF SWAP - TX! ;
: block.tx_checksum ( -- )
block.checksum @ FF AND TX! ;
: block.tx_data ( off -- )
DUP block.data + block.data_size ROT - 0 DO
DUP C@ TX! CHAR+
LOOP DROP ;
: block.sent? ( -- )
BEGIN rx@ <ACK> = INVERT WHILE
block.tx_header 0 block.tx_data block.tx_checksum
REPEAT
block.next ;
: block.put_byte ( b -- )
block.offset @ 0= IF
block.tx_header
THEN
DUP block.byte! TX!
block.remain 0= IF
block.tx_checksum block.sent?
THEN ;
: block.flush ( -- )
block.offset @ 0 > IF
block.remain 0 > IF
block.offset @ block.tx_data
THEN
block.tx_checksum block.sent?
THEN ;
\ XMODEM protocol
: x-transmit-byte ( b -- )
block.put_byte ;
: x-transmit ( addr count -- )
0 DO
DUP C@ block.put_byte CHAR+
LOOP DROP ;
: x-begin ( -- )
block.create
BEGIN rx@ <NAK> = UNTIL
301C LCD_SHOW LCD_REFRESH ; \ tx indicator
: x-end ( -- )
block.flush block.destroy
BEGIN <EOT> response? <ACK> = UNTIL
301C LCD_HIDE LCD_REFRESH ; \ tx indicator
: X-SEND ( addr count -- )
x-begin x-transmit x-end ;
SET-CURRENT
BASE !
\
\ save-sys.f
\ Save FORTH image
\
BASE @ HEX
GET-CURRENT NONSTANDARD-WORDLIST SET-CURRENT
: X-SEND-SREC ( addr size -- )
x-begin
['] x-transmit-byte srec-dump
x-end ;
: SAVE-SYSTEM ( -- )
CR ." Saving image..."
CR ." (Press 'RUN' to abort)"
8000 HERE OVER - X-SEND-SREC ;
SET-CURRENT
BASE !
-- end of pbForth code ------------------------------------------------------
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Message has 1 Reply:
 | | RE: Save image in pbForth (srec version)
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| (...) <snipped pbForth code> COOL! I guess you could load this in just before you actually need to do the dumping of the memory. This is a great contribution, Sergey. Do you mind if I put it in script format and package it with the standard (...) (25 years ago, 11-Nov-99, to lugnet.robotics.rcx.pbforth)
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