Serial transfer PC > HP85 via serial interface

[fguarisco]

Hardware: HP85A with PRM-85 Super ROM V2 (with EMS), serial interface HP82939A
PC whit Widows OS and serial port

Operations: install XSend85 on PC, type Xfer85 on HP85, connect the serial port

NOTE: the serial port congiguration is: COMxx:300...1200,N,8,1

Setup the baud speed on Xfer85 in line 40 (6=300, 7=600, 8 =1200), for big programs and slow disk 300 baud, define the default mass storage: example
MASS STORAGE IS ":D700"

On PC start XSend85

HP85 program:

10 CLEAR
20 DIM B$[255]

30 RESET 10
40 CONTROL 10,3 ; 7
50 ! 6=300 baud 7=600 baud 8=1200 baud
60 CONTROL 10,4 ; 3
70 ! N,8,1
80 ASSERT 10;7 @ ENTER 10 ; B$@ ASSERT 10;3
90 DISP "FILE LENGTH "&B$ @ F1=VAL(B$)
100 DISP "CREATING FILE ..."
110 !
120 ON ERROR GOTO 140
130 PURGE "PGM"
140 CREATE "PGM",INT(F1/230)+1
150 OFF ERROR
160 DISP "... DONE"
170 ASSIGN# 1 TO "PGM"
180 !
190 DISP "WAITING FOR INPUT..."
200 ASSERT 10;7 @ ENTER 10 ; B$@ ASSERT 10;3
210 DISP B$
220 IF B$=">END<" THEN 260
230 PRINT# 1 ; B$
240 GOTO 200
250 !
260 DISP "DONE!"
270 ASSIGN# 1 TO * @ RESET 10
280 END

When the last instruction ">END<" was not found Xsend addit automatically

When HP85 says DONE you can give the command GET "PGM" to transfer the result as basic program. After that you can STORE the program and purge the PGM from the disk