Search found 8 matches

by FraggaMuffin
Fri May 15, 2020 2:03 am
Forum: Pyboard D-series
Topic: ADC Trigger Interrupt on Threshold
Replies: 7
Views: 928

Re: ADC Trigger Interrupt on Threshold

The requirement is for ~2.5ms reaction time, so that's achievable with polling. However, the async scheduler is already heavily loaded with high-level tasks, so I can't rely on that. I've settled for a design that will: Configure ADC to read cyclically pyb.Timer interrupt to check AWD flag, to run e...
by FraggaMuffin
Wed May 13, 2020 12:13 am
Forum: Pyboard D-series
Topic: ADC Trigger Interrupt on Threshold
Replies: 7
Views: 928

Re: ADC Trigger Interrupt on Threshold

I believe I've got most of what I need (except time) ;) With the link you gave me Peter, and the example in pyb.ADC for v1.9.3 . Is it possible to assign a python callback to an interrupt vector?... is that possible from within python? For example: import pyb import stm # ... configure ADC for conti...
by FraggaMuffin
Tue May 05, 2020 11:06 pm
Forum: Pyboard D-series
Topic: ADC Trigger Interrupt on Threshold
Replies: 7
Views: 928

Re: ADC Trigger Interrupt on Threshold

The thread I referenced was in the ESP8266 forum, so I was hoping your mention of it "not currently supported" being limited to that architecture. I'll do some experimenting, and post back here with what I find. If anything's worth a PR, I'll contribute that. In the meantime, anyone else's experienc...
by FraggaMuffin
Tue May 05, 2020 4:47 am
Forum: Pyboard D-series
Topic: ADC Trigger Interrupt on Threshold
Replies: 7
Views: 928

ADC Trigger Interrupt on Threshold

On a Pyboard D with STM32F767, is it possible to configure an ADC as a comparator? In other words: to trigger an interrupt on an ADC measuring above, or below a configurable threshold? From: STM32F767 Datasheet 2.41 Analog-to-digital converters (ADCs) The ADC can be served by the DMA controller. An ...
by FraggaMuffin
Tue Jul 31, 2018 6:20 am
Forum: General Discussion and Questions
Topic: Kicad files > shield
Replies: 2
Views: 5489

Re: Kicad files > shield

Thanks bibile! I put that straight in to one of my projects, it saved me from making it myself. 2 cosmetic improvements I can see: - Fill rectangle's background - Y6: label "CANTX" should be "CANTX2" I'm new to KiCAD too, so when it comes to practical advice for pin types & other parameters... I hav...
by FraggaMuffin
Mon Jul 16, 2018 5:09 am
Forum: MicroPython pyboard
Topic: Windows pyboard serial_number from python?
Replies: 1
Views: 747

Re: Windows pyboard serial_number from python?

Yep... windows registry solution is as follows: >>> import re >>> from serial.tools.list_ports import comports >>> c = comports()[0] >>> id_regex = re.compile(r'VID:PID=(?P<VID>\w+?):(?P<PID>\w+)') >>> match = id_regex.search(c.usb_info()) >>> import winreg >>> key = winreg.OpenKey( ... winreg.HKEY_...
by FraggaMuffin
Mon Jul 16, 2018 2:16 am
Forum: MicroPython pyboard
Topic: Windows pyboard serial_number from python?
Replies: 1
Views: 747

Windows pyboard serial_number from python?

I'm trying to uniquely identify a pyboard's COM port from the OS. So essentially comport_of_pyboard('3976346C3436') returns 'COM3' (or None, if the requested pyboard is not connected) I can get what I need on Linux with: >>> from serial.tools.list_ports import comports >>> ports = comports() >>> por...
by FraggaMuffin
Mon Jul 09, 2018 3:47 am
Forum: MicroPython pyboard
Topic: CAN with extframe=True do not receive message with standard ID
Replies: 3
Views: 2841

Re: CAN with extframe=True do not receive message with standard ID

I'm attempting to do the same thing (use a pyboard as a node for both extended and standard addressing).

For reference, this issue has been raised recently https://github.com/micropython/micropython/issues/3916