| ??? 01/12/09 09:34 Read: times |
#161443 - Ring or no Ring Responding to: ???'s previous message |
Marshall Brown said:
Yes I have a very nice ring driven UART function that can collect the bytes, the issue I have is getting these on the I2C bus in an orderly manner, it seems wasteful sending them one byte at a time having to have the overhead of addressing the slave etc. Just have your I2C pull data from the ring buffer as required - from your main loop, or some other suitable event in your system. The I2C could pull them as soon as they're available, and then send when it's built a "frame", or wait until there's a full frame in the ring buffer and send that... buffer the data into 2 rings, (a & b) when A ring is full switch to B ring, and send A ring, and then wait until B ring is full and send that and contiously toggle between the 2 rings. Yes, that should work. With 2 buffers like that, the individual buffers themselves don't need to be rings - you are effectively forming a ring of 2 buffers! You could have more than 2 buffers, if it helped... |
| Topic | Author | Date |
| Streaming Data RS232 -> I2C -> RS232 | 01/01/70 00:00 | |
| to infinity and beyond | 01/01/70 00:00 | |
| Waaaaaaaaay OTT? | 01/01/70 00:00 | |
| Ring-a-ring-O-roses... | 01/01/70 00:00 | |
| Thanks but ----> how do I stream on the I2C | 01/01/70 00:00 | |
Ring or no Ring | 01/01/70 00:00 | |
| great idea | 01/01/70 00:00 | |
| Wouldn't need to send to the other UART though | 01/01/70 00:00 |