switchover from 8048 to 8031 | | 01/01/70 00:00 |
P4-P7 whereabouts | | 01/01/70 00:00 |
This might be a bit trickier than you think ... | | 01/01/70 00:00 |
interfacing 8243 to uprocessor | | 01/01/70 00:00 |
Replacing one dinosaur with another? | | 01/01/70 00:00 |
Maybe you should reconsider the system configuration | | 01/01/70 00:00 |
8048 -> 8051 | | 01/01/70 00:00 |
if you buy a SILabs kit ... | | 01/01/70 00:00 |
Beware of 'C'-only systems ... | | 01/01/70 00:00 |
Pardon??! | | 01/01/70 00:00 |
I have to believe their tech support guys ... | | 01/01/70 00:00 |
The SILabs 'tools' are KEIL | | 01/01/70 00:00 |
My point, exactly! | | 01/01/70 00:00 |
WHO states that he has to use Keil | | 01/01/70 00:00 |
There's probably good reason for that! | | 01/01/70 00:00 |
the KEY word | | 01/01/70 00:00 |
You can't evaluate with something that's not complete | | 01/01/70 00:00 |
But they obviously can't give away the complete product | | 01/01/70 00:00 |
migration of 8243 expender | | 01/01/70 00:00 |
what specifically does not work? | | 01/01/70 00:00 |
Of course not! | | 01/01/70 00:00 |
Agree with you there! | | 01/01/70 00:00 |
On the subject of cars ... | | 01/01/70 00:00 |
When I feel like it | | 01/01/70 00:00 |
male cow manure | | 01/01/70 00:00 |
The tools SiLabs wants you to use ... | | 01/01/70 00:00 |
the old familar tune and singing it off key | | 01/01/70 00:00 |
Lots of C code to fill 2kB or 4kB | | 01/01/70 00:00 |
and how will that help the O/P? | | 01/01/70 00:00 |
maybe if the lines are.... | | 01/01/70 00:00 |
Don't you worry | | 01/01/70 00:00 |
It was a kind of joke. | | 01/01/70 00:00 |
Illustrated here | | 01/01/70 00:00 |
2K of binaries for just a few dozen lines of 'C' | | 01/01/70 00:00 |
perhaps, but the O/P didn't say he wants to use 'C' | | 01/01/70 00:00 |
You were the one who raised it! | | 01/01/70 00:00 |
True enough, but ... | | 01/01/70 00:00 |
read the Keil manual | | 01/01/70 00:00 |
I don't believe that's the case | | 01/01/70 00:00 |
Yes, it was definitely you. | | 01/01/70 00:00 |
Emulation possible | | 01/01/70 00:00 |
why not emulate 8048 in 8051 | | 01/01/70 00:00 |
Interesting idea, but ... | | 01/01/70 00:00 |
how to 8243 | | 01/01/70 00:00 |
It could be quite straightforward | | 01/01/70 00:00 |
it could be.... | | 01/01/70 00:00 |
how to 8243 | | 01/01/70 00:00 |
You really should open a museum! | | 01/01/70 00:00 |
You really..... | | 01/01/70 00:00 |
conv51 | | 01/01/70 00:00 |
Yep ... you're right ... | | 01/01/70 00:00 |
SiLabs parts | | 01/01/70 00:00 |
It's not at all clear what the problem is | | 01/01/70 00:00 |
I know that you live in the past | | 01/01/70 00:00 |
it's all about the timing ... and the support | | 01/01/70 00:00 |
If it matters, then you shouldn't be asking | | 01/01/70 00:00 |
living in the past, you would not know of ... | | 01/01/70 00:00 |
quality of support | | 01/01/70 00:00 |
"Most coders" | | 01/01/70 00:00 |
do you really have any evidence | | 01/01/70 00:00 |
You clearly haven't though about it! | | 01/01/70 00:00 |
which is the correct procedure | | 01/01/70 00:00 |
Not so ridiculous ... | | 01/01/70 00:00 |
when I discuss a, you invariably bring up b | | 01/01/70 00:00 |
assembler code | | 01/01/70 00:00 |
C and assembler are complements | | 01/01/70 00:00 |
That's meaningless, Richard | | 01/01/70 00:00 |
It's not pointless, Andy | | 01/01/70 00:00 |
2kB of code space is quite a lot for evaluation | | 01/01/70 00:00 |
One could answer this in a number of ways ... | | 01/01/70 00:00 |
I think I know why Richard keeps arguing against C ... | | 01/01/70 00:00 |
In that case, where's the benefit? | | 01/01/70 00:00 |
It is unclear... | | 01/01/70 00:00 |
8048 to 8051 migration | | 01/01/70 00:00 |
240 i/o pins is an awful lot | | 01/01/70 00:00 |
Many alternatives | | 01/01/70 00:00 |
I doubt he's using 240 I/O pins | | 01/01/70 00:00 |
240 pins i/o | | 01/01/70 00:00 |
Have you considered Programmable Logic? | | 01/01/70 00:00 |
What will you do when those i8243's are exhausted? | | 01/01/70 00:00 |
old 8243 equipment | | 01/01/70 00:00 |
It's entirely up to you | | 01/01/70 00:00 |
Max 8 addresses on I2C? | | 01/01/70 00:00 |
wouldn't it be wise to start thinking about this right now? | | 01/01/70 00:00 |
wouldn't it be wise... | | 01/01/70 00:00 |
I2C configuration for 240 I/Os | | 01/01/70 00:00 |
PCA9501 | | 01/01/70 00:00 |
Decentalized options ? | | 01/01/70 00:00 |
I would definitely look at multiple controllers | | 01/01/70 00:00 |
max 8 adresses... | | 01/01/70 00:00 |
SPI often cheap compared to I2C | | 01/01/70 00:00 |
not necessarily true | | 01/01/70 00:00 |
not nessesarily true | | 01/01/70 00:00 |
WHY? | | 01/01/70 00:00 |
51 derivative | | 01/01/70 00:00 |
IIC chips | | 01/01/70 00:00 |
cheaper | | 01/01/70 00:00 |
cheaper | | 01/01/70 00:00 |
FAQ | | 01/01/70 00:00 |
shift register | | 01/01/70 00:00 |
re: Max 8 I2C addresses | | 01/01/70 00:00 |
two options | | 01/01/70 00:00 |
NXP has a line of "bus splitters" | | 01/01/70 00:00 |
Still unclear [edited] | | 01/01/70 00:00 |
8048 to 8051 migration | | 01/01/70 00:00 |
AT89S8253 | | 01/01/70 00:00 |
AT89S8253 | | 01/01/70 00:00 |
Sorry... duplicated post!! | | 01/01/70 00:00 |
8048 vs 89S52 DIP40 may fit but different pinout | | 01/01/70 00:00 |