[neonixie-l] Re: Microcontroller driven boost converter
Thanks! I looked into the code and it generally looks similar to my pseudo-PI approach (preloading PWM to some value and then simply ++ or -- if output is too high or too low). I had troubles with slow response, but I think that it was because how analogRead is handled on STM32 hacked to work with Arduino. Also I wasn't calculating new PWM in main loop, but in an interrupt - maybe it was too slow? I'll copy and paste his code and test it with an oscilloscope, when I find my real Arduino... W dniu sobota, 2 grudnia 2017 01:11:53 UTC+1 użytkownik Paul Andrews napisał: > > Ian Sparkes’ kits use the microcontroller > https://www.nixieclock.biz/Store.html . The source code is on Github. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/cab96939-71d1-4fb4-ace4-374453b83285%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[neonixie-l] Re: Microcontroller driven boost converter
Ian Sparkes’ kits use the microcontroller https://www.nixieclock.biz/Store.html . The source code is on Github. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/b4f330aa-4ed7-47ff-b67d-981225f18f68%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[neonixie-l] Re: Microcontroller driven boost converter
I'm actually using a CPLD (FPGA) for my next project, because the attached RasPi is running Linux and does not have guaranteed response time. It's too risky to have logic controlling something critical, like a DCDC converter, if the behavior is not deterministic at all times. Leaving a transistor on for a few extra microseconds will cause something to burn-up. Non-critical tasks, such as reading A/D converters, sending status updates to my server, getting & displaying time-of-day, and checking fuses are OK for the RasPi. I used a CPLD previously for my wristwatch, and it works nicely. The logic controlling the DCDC converter will be running at 50Mhz, while most of the other logic on the FPGA will be at 1Mhz. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/29d4d8a7-ebb9-43d4-b974-f2dc26147d6e%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
