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WriteSerialString fails.. - plouf - 09.02.2025
does anyone has experience with this command?
it fails to send a string, send one or a few bytes , with a non predicted form
if i send single bytes WITH some delays (vwait 1 is enough), all arrive
note that currently only test it under WinUAE to a PC,
RE: WriteSerialString fails.. - hackball - 09.02.2025
Did you set up the serial parameters in a way that make sense?
RE: WriteSerialString fails.. - plouf - 09.02.2025
wha tis the way taht "make sense" ?
i shave enable serial status (rts/ctc..) etc ?
RE: WriteSerialString fails.. - hackball - 09.02.2025
like baudrate, bits (7-n-1 or 8-n-1), etc?
RE: WriteSerialString fails.. - plouf - 09.02.2025
i use
OpenSerial("serial.device",0,9600,0)
which, as i read defaults to 8 n 1, which i use succefull for single byte send and receive but not very fast ?
also openserial fails (guru) with most other serial.devices like uaeserial.device / baudbandid etc
but no problem since target is to use build in serial anyway
RE: WriteSerialString fails.. - hackball - 09.02.2025
i just checked my src for the Casablanca serial console.
it has a comment about "writeserialstring doesn't work"
so i wrote a macro back then like
For i =1 to len (out$)
writeserial unit, asc(mid$(...))
next
RE: WriteSerialString fails.. - plouf - 09.02.2025
Yes i worked same way ..so seemms its broken for decades :-(
RE: WriteSerialString fails.. - hackball - 09.02.2025
i did set serialbits to 32|128, which is shared+xof disable
RE: WriteSerialString fails.. - plouf - 10.02.2025
just for future reference
it seems that Blitz need not to bother it as long as unloading string
a VWAIT exactly after serial string make it work, nothing else !
i count around 18 bytes per VWAIT at 9600 in winuae , ie for a 50 byte string need at least VWAIT 3
RE: WriteSerialString fails.. - hackball - 11.02.2025
That's not how it is supposed to be, lol.
against WinUAE you could certainly go up to 100kbaud, Blitz should finish immediatly then.
We can't use VWait in a proper way when doing system stuff, this is not multitasking friendly.
Maybe there is a way to utilise the Serial interrupt.