| ??? 12/10/06 16:56 Read: times |
#129251 - real-time? Responding to: ???'s previous message |
Andy and Joseph,
Don't you know what store these values instantly with minimum delay means? This is not about throughput, it's about latency and possibly jitter. With USB you will always wait until the next frame (1 ms for CP2102). On a serial port at 115200 it takes about 100us to transmit one character. If I had this requirement I would start by getting rid of Windows and use a proper RTOS. Then I would probably look for a good PCI-card with parallel output. Maarten |
| Topic | Author | Date |
| accessing the modes of parallel port | 01/01/70 00:00 | |
| A bit off-topic? | 01/01/70 00:00 | |
| DCBs | 01/01/70 00:00 | |
| In Windows... | 01/01/70 00:00 | |
| DCB? | 01/01/70 00:00 | |
| DCB | 01/01/70 00:00 | |
| CP2102 | 01/01/70 00:00 | |
| The hardest part of using the CP2102 | 01/01/70 00:00 | |
| Modules | 01/01/70 00:00 | |
| need of the parallel port | 01/01/70 00:00 | |
| Misunderstanding? | 01/01/70 00:00 | |
| Re-analyze your requirment | 01/01/70 00:00 | |
| real-time? | 01/01/70 00:00 | |
| latency and jitter | 01/01/70 00:00 | |
| Inadequately specified | 01/01/70 00:00 | |
| Figures | 01/01/70 00:00 | |
| This might Help | 01/01/70 00:00 | |
| USB? | 01/01/70 00:00 | |
| there are ways ... but be careful | 01/01/70 00:00 | |
| Bps? | 01/01/70 00:00 | |
| bits | 01/01/70 00:00 | |
| By definition | 01/01/70 00:00 | |
| What definition? | 01/01/70 00:00 | |
| at least wikipedia | 01/01/70 00:00 | |
| Did you actually read it? | 01/01/70 00:00 | |
| yes | 01/01/70 00:00 | |
| Bits and bytes | 01/01/70 00:00 | |
| Typo, of sorts. | 01/01/70 00:00 | |
| bits vs bytes | 01/01/70 00:00 | |
| even worse, do you remember | 01/01/70 00:00 | |
Husker Du | 01/01/70 00:00 | |
| Common | 01/01/70 00:00 | |
| Nope ...it\'s BYTES | 01/01/70 00:00 |