| ??? 10/03/08 07:44 Read: times |
#158790 - bits/s not packet size! Responding to: ???'s previous message |
No, the length of the data does not matter in any other way than where to buffer received data.
But for the SPI protocol, it isn't the packet size but only the bit rate that affects how hard the slave has to keep up. And the bit rate depends on your packet length times number of packets / second. And you have still not answered that question: Exactly how much data (size times count) do you need to be able to send per second. |
| Topic | Author | Date |
| SPI slave | 01/01/70 00:00 | |
| high speed? | 01/01/70 00:00 | |
| sory for late replay. | 01/01/70 00:00 | |
| SPI clock | 01/01/70 00:00 | |
| not sure.. | 01/01/70 00:00 | |
| the worst possible approach | 01/01/70 00:00 | |
| SPI Slave Response | 01/01/70 00:00 | |
| further explanation? | 01/01/70 00:00 | |
| Fixed speed | 01/01/70 00:00 | |
| SPI Timing Diagrams | 01/01/70 00:00 | |
| UART Mode 0 - SPI like Serial Shif register | 01/01/70 00:00 | |
| uhm | 01/01/70 00:00 | |
| to joe | 01/01/70 00:00 | |
| your point? | 01/01/70 00:00 | |
| you can't fail with software master | 01/01/70 00:00 | |
| Unanswerable! | 01/01/70 00:00 | |
| really? | 01/01/70 00:00 | |
| Intended for/usable for not always identical | 01/01/70 00:00 | |
| consideration? | 01/01/70 00:00 | |
| Some Questions | 01/01/70 00:00 | |
| whichever you choose | 01/01/70 00:00 | |
| low cost? | 01/01/70 00:00 | |
| if you do not use an interrupt | 01/01/70 00:00 | |
| polling? | 01/01/70 00:00 | |
| bits/s not packet size | 01/01/70 00:00 | |
| speed? | 01/01/70 00:00 | |
| bits/s not packet size! | 01/01/70 00:00 | |
| 500ms? | 01/01/70 00:00 | |
| here | 01/01/70 00:00 | |
| Yes - I agree | 01/01/70 00:00 | |
| issues | 01/01/70 00:00 | |
| UART! | 01/01/70 00:00 | |
| Not complex - just requiring low baudrate | 01/01/70 00:00 | |
| kind of rcorrect | 01/01/70 00:00 | |
| Complexity contra recommendable | 01/01/70 00:00 | |
| answer | 01/01/70 00:00 | |
| as i said | 01/01/70 00:00 | |
| lots of them | 01/01/70 00:00 | |
mcu with spi, right here in the thread | 01/01/70 00:00 | |
| CodeArchitect. ? | 01/01/70 00:00 | |
| no | 01/01/70 00:00 | |
| ahhh | 01/01/70 00:00 | |
| simulating SS? | 01/01/70 00:00 | |
| Interrupts are slower than tight polling | 01/01/70 00:00 | |
| wow | 01/01/70 00:00 | |
| all about worst-case | 01/01/70 00:00 | |
| thanks... | 01/01/70 00:00 | |
| missed interrupts | 01/01/70 00:00 | |
| correct me.. | 01/01/70 00:00 | |
| Fast interrupts | 01/01/70 00:00 | |
| thanks... | 01/01/70 00:00 | |
| An Alternative... | 01/01/70 00:00 | |
| Some Descriptive Information | 01/01/70 00:00 | |
| AT89LP2052 has HW SPI | 01/01/70 00:00 |