| ??? 04/25/07 06:54 Read: times |
#137907 - multi-GHz PC can get a lot done in a few ms! Responding to: ???'s previous message |
Mircea Gliga said:
something like this?:
while(system_is_up)
{
for(i =1; i<number_of_uC; i++ )
{
do you have something to say?
if (yes)
{
process the data
}
}
}
that will take a lot of processor time... wouldn't it ? Is that ok in terms of performance ? Only if you run it constantly in a tight loop like that. Better to have some delay between polls: while(system_is_up)
{
for each uC
{
do you have something to say?
if (yes)
{
process the data
}
pause
}
}
You just need to determine how long the 'pause' can be to ensure that each slave is polled often enough without overburdening the PC. Remember, a multi-GHz PC can get an awful lot done in a few milliseconds! You'd have to ensure that the 'pause' allows other tasks to run... |
| Topic | Author | Date |
| multiple 8052 communication with PC | 01/01/70 00:00 | |
| RS485 | 01/01/70 00:00 | |
| More COM: Ports | 01/01/70 00:00 | |
| Further additional COM: ports | 01/01/70 00:00 | |
| multiple 8052 communication with PC | 01/01/70 00:00 | |
| Simple solution | 01/01/70 00:00 | |
| Recipe for a short circuit? | 01/01/70 00:00 | |
| Not on a standard 8051? | 01/01/70 00:00 | |
| whether that is a problem is for the OP to determi | 01/01/70 00:00 | |
| protocol ?? | 01/01/70 00:00 | |
| yes - no - see above | 01/01/70 00:00 | |
| master slave PC performance | 01/01/70 00:00 | |
| multi-GHz PC can get a lot done in a few ms! | 01/01/70 00:00 | |
| Slave comms controller? | 01/01/70 00:00 | |
| expanding on th above | 01/01/70 00:00 | |
| For just two devices | 01/01/70 00:00 | |
| been there, done that | 01/01/70 00:00 | |
In this case... | 01/01/70 00:00 | |
| Interrupt Request? | 01/01/70 00:00 | |
| not really | 01/01/70 00:00 | |
| Not on a PC | 01/01/70 00:00 | |
| Not that it can't be done | 01/01/70 00:00 | |
| Another recipe is a ring!!! | 01/01/70 00:00 | |
| sure, if you have all the time in the world | 01/01/70 00:00 |