Pepper-computer Modular Computers RS485 Manual de usuario descargar pdf (Pagina 296)

SMART I/O User’s Manual

March 12, 1996

Page 6 - 14

Chapter 6 Communications Modules

6.1.9 OS-9 Programming

Due to the fact that the device descriptor for the serial I/O is burnt into

EPROM, it cannot be over-written with new values. Therefore a copy has to

be generated in RAM where the parameters may be manipulated. This

procedure is only useful for those users who wish to alter the default param-

eter settings. The procedure is therefore as follows :

From the $ prompt that is displayed under OS-9, copy the descriptor to the

ramdisk, thus

$ save scc3

change the revision number from 0 to 1 so that OS-9 selects the newest:-

$ fixmod -ua=8001 scc3

Module:scc3 - Fixing header parity - Fixing module CRC

now load the new revision into memory, i.e. a copy from the ramdisk:-

$ load -ld scc3

load:loaded /scc3

delete the copy held on the ramdisk to free the space:-

$ del scc3

check the port settings:-

$ xmode/scc3

/scc3

noupc bsp bsl echo if null=0 pause pag=24 bsp=08

del=18 eor=0D eof=1B reprint=04 dup=01 psc=17 abort=03

quit=05 bse=08 bell=07 type=00 baud=9600 xon=11

xoff=13 tabc=09 tabs=4

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Pepper-computer Modular Computers RS485 Manual de usuario Pagina 296