300 mm, because? We have 3 fingers on each hand and like to think in base 3.
If the design needs a chip-to-chip communication method more than 10 cm it should use a differential voltage physical layer (ethernet Ok). Otherwise the motors will induce glitches. This and other reasons is why industrial/automotive/lab equipment typically uses CAN bus (which is basically a fancy multi-device UART). It is better with a multi-component system in prototyping phase to have probe points in between each module which provide easy-to-read debug output - this includes points for bus sniffing which spit out readable data, as opposed to hard-to-decypher data (ethernet not Ok). If boards are going to be linked together in series then the communication method should best be daisy chainable (ethernet not Ok, CAN Ok).
128 kB because? The motor control algorithms take a whopping 4 kB and need plenty of room to grow I guess! (Focus on simplicity of parts, not $ cost of memory.) Limits of hardware is not the problem, getting good developers usually is. With poor developers it's best to make their project area small and well defined. (Tiny memory, tiny algorithms, and small isolated components that have all outputs well tested under all input conditions.)
## Jonathan Cline
## jcline@ieee.org
## Mobile: +1-805-617-0223
########################
-- You received this message because you are subscribed to the Google Groups DIYbio group. To post to this group, send email to diybio@googlegroups.com. To unsubscribe from this group, send email to diybio+unsubscribe@googlegroups.com. For more options, visit this group at https://groups.google.com/d/forum/diybio?hl=en
Learn more at www.diybio.org
---
You received this message because you are subscribed to the Google Groups "DIYbio" group.
To unsubscribe from this group and stop receiving emails from it, send an email to diybio+unsubscribe@googlegroups.com.
To post to this group, send email to diybio@googlegroups.com.
Visit this group at http://groups.google.com/group/diybio?hl=en.
To view this discussion on the web visit https://groups.google.com/d/msg/diybio/-/5STRpaxxG90J.
For more options, visit https://groups.google.com/groups/opt_out.
0 comments:
Post a Comment