MicroPython Forum (Archive)

Just rebuilt a few earlier versions (1.15-221/220/215/211): all result in around 2625 pystones/second. But versions which I built 3 days ago (1.1-216/184) perform at around 4250. I noticed a difference in filesize too: today all 728.9 KB, those of June 18: 708.8 kB. I did not see updates of the tool...

Just to be sure about my results I reran pystone_lowmem on a Teensy 4.0 with MP firmware 1.15-216. Below a screenshot of my terminal program:

You may notice that I us 5000 for the number of loops.

I have no script for testing: I simply run pystone_lowmem.py on the target after loading a firmware version.
I do have a Python script to build firmware for several ports, is that of interest to you?

Since my recent figures were all collected with firmware built locally on my PC I cannot exclude that that could be a cause of the performance differences, even though I use a build-script for consistency. So I decided to redo the tests with 'standard' firmware from the Download section of this site...

I added DEBUG=0 to the make call, but it seems not to make a difference. I repeated pystone_lowmem.py for TEENSY 4.0 with some older firmware versions I had kept. 1.15-184 4269 pystones/second 1.15-216 4244 1.16 2627 1.16-2 2616 By simply including C-modules for support of ST7789 TFT displays I see ...

About 2 weeks ago I mentioned these performance figures with pystone_lowmem: ESP32 1231 pystones / second Teensy40 3782 pystornes / second That was with firmware 1.15-186. With newer firmware 1.15 versions I found for the Teensy figures around 4350. But with 1.16-2 I see now figures around 2650. Wha...

Yes, I'm very happy with the developments of MP for the Teensy 4.0/4.1!
Just tested a TFT display with ST7789. Addition of the C-module (author russhughes) gave no problems and the display works (slowly, probably due to max baudrate 500000 of SoftSPI).

Hello Peter, I've a TTGO-T8 V1.7 ESP32 board here with Pins 36 and 39 brought out (according to the Pin layout picture). With PULL_UP Pin 36 gives value 0 like with you, but PIn 39 gives value 1 with PULL_UP and value 0 when specified with PULL_DOWN. BTW On the PCB these 2 Pins are marked VP and VN ...

Thanks Peter, that did it!
BTW With my first attempt I followed the instructions for installing packages which I found at PyPi.org.

I am missing something.... tried to install mpremote with: python3 -m pip install mpremote which reports: Requirements already satisfied (2 lines:: for mpremote and pyserial) but after that 'mpremote' on the commandline gives 'command not found' It looks like I need to do something additionally, but...