In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Mr_Nuke wrote:

Marc,

I have considered other interfaces, unfortunately, 1-Wire and I2C are too slow for what I need. Also, because the slave SPI interface on the master processor will be driven by interrupts, I cannot accurately implement an asynchronious protocol with the peripherals, such as 1-Wire. I need to collect data from up to eight sensors (the peripheral devices), organize it, and send it to the computer as fast as possble. Each peripheral will collect and send data a few thousand times per second, the master processor will send it to the auxiliary processor, and the auxiliary processor to the computer, through a 256000 bps UART. In order to do this effectively, I need speed.

If there were an easier way, I'd certainly follow it.

Another solution might be to implement the RS232 UART @ 256000bps, and eight RS485 UARTS running at 128000 bps on a single processor, but even at 75MHz, I don't seem to have enough processing power for that. I'd really like to know if anyone thinks it's possible.

Alex.

---------- End of Message ----------


You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=162334#m162833

Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com

The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2006 (http://www.dotNetBB.com)