| ??? 09/11/07 17:28 Read: times Msg Score: +1 +1 Informative |
#144386 - Seconds thoughts Responding to: ???'s previous message |
Jan Waclawek said:
A "full featured" RTOS/multitasking is slightly beyond the scope of '51. I don't say it is out of question, it's just questionable, if it's worth doing it on a '51. If you feel your application needs multitasking, you should most probably switch to a "more adult" microprocessor/microcontroller family. I used to agree with that, but lately I've had second thoughts. Having worked with the Dallas DS80C411, I have to say that I was quite impressed with their multi-task operating system. When combined with Keil, it's quite impressive. It gave me a full TCP/IP stack with functions that were almost identical to traditional socket calls; it gave the ability to launch multiple tasks and "forget about it." And the MCU itself is capable of running large code; it's been awhile since I studied the memory map, but there was no problem at all when my program expanded beyond 64k. And it's all an 8051 at $8k/each @ 1000. I suppose a "more adult" processor could have been used, but is there any particular reason why I would want to? Regards, Craig Steiner |
