Mark, what do you think of this embedded system
http://www.uclinux.com? I met the inventor. He was just a young
Canadian guy; less than 25years old in 1999. They used to run SPI on
the board I saw, but now they run QSPI. I don't know anything about
the bus; can it be real-time?
I guess they run real-time FDDI on the F-16 fighter jets. They did
away with a lot of copper so it could be more EMP-hardened and less
chance of fire and points of failure.
/mario
>On Wed, 4 Sep 2002, Ronan Heffernan wrote:
>>
>> I can live with "feable". When working that close to the silicon, I
>> don't mind using crutches. The last time I had to do a PIC-level
>> solution, I wimped-out and went with a ZWorld Jackrabbit board. It was
>> very expensive ($70 each), but it came with a free multi-threaded C
>> compiler and most of the sensitive electronic work was done (I only had
>> to deal with TTL I/O ports and supply approx. 5V power).
>
>*bah* that's not working close to silicon *g*
>
>We design our own boards and I make reccomendations on the pre-production
>boards. And every time I need to support something I wrote I usually go
>down to the drawing level. My desk is full of schematics. Then I single
>step through the asm just to make sure the compiler gets it right (it has
>known to buck up before* TTL I/O would be awesome if that's all I had to
>do, but throw in some SPI bus, CAN, serial (485,232), EEPROM (also SPI
>bus) and things get real dicy at times.
>
>One time I had to use the 12CE519 which has no (read: ZERO) interrupts on
>it and the customer wanted it to do some timing, as in three separate
>timers running concurrently at different lengths) That code was a work of
>art. My masterpiece. *grin* And I dare anyone to try and understand it.
>*grin*
>
>------------------------------------------------------------------------
>| Mark Bishop (mark@bish.net) | Computer Engineer |
>| 813-253-2197 | Network Engineer |
>| http://bish.net | Embedded Programmer |
This archive was generated by hypermail 2.1.3 : Fri Aug 01 2014 - 18:59:55 EDT