MicroPython Forum (Archive)

I wonder if there's some issue with switching betwen directly controlling the pin and then using it as a uart tx. Do you have a scope or logic analyser? Nope. Just a dmx source that will not respond to the micropython version, but does respond to the c-library version. So I do assume that there is ...

jimmo wrote: ↑

Tue Jul 21, 2020 1:08 pm

klankschap wrote: ↑

Tue Jul 21, 2020 8:22 am

The OUT_PP is not defined:
What would be the best alternative ?

OUT

for what ever reason, the dmx output does not work on the esp32 ...

I'm not sure why ESP32 doesn't have OUT_PP, but OUT is the same thing. On STM32, OUT_PP is an alias for OUT anyway. (It's just to distinguish between push/pull and open-drain). The OUT_PP is not defined: What would be the best alternative ? >>> import machine >>> dir(machine) ['__class__', '__name_...

The implementation of the dmx protocol in

git clone https://github.com/clacktronics/pyb_dmx.git

uses the Pin.OUT_PP
but the ESP32 does not have this option.
What would be an alternative?

.F

that was it !
with the --flash_size=32m option i can flash it even at --baud 460800


MicroPython v1.8.7-205-g181f7d1 on 2017-02-09; ESP module with ESP8266
Type "help()" for more information.
>>>


Thank you!
.F

i don't know
how to check ?

i have two esp8266 and they behave identical.
they work with v1.8.4 but not 1.8.7

with espwritex defined as: #!/usr/bin/env bash python2 esptool.py -p /dev/tty.SLAB_USBtoUART erase_flash python2 esptool.py -p /dev/tty.SLAB_USBtoUART --baud 115200 write_flash --flash_size=8m -fm dio 0 $@ then then flashing the esp8266: $ ./espwritex esp8266-20170209-v1.8.7-205-g181f7d1.bin Namespa...

the -fm option was in my original script.
did not work

.F

that did not solve the problem: >>> ll`rll��|�l�|�l�b|����r�b�b��nn�lnn���bp��lrlrlp�n��lbn�|���b��nn�l��l`�nnl`nr���nl`p�n�r�����bn�|lb��nn�l`�nnl`nr���n��`p�n�r�������bn�|�b��nn�l`�nnl`nr���n�l�lr��n�l�l�r���nb�nl�|��n|pl�|n��⒂b�n`rll��|��rrnb��l�b�lb쌜���lb�lrl���p�nn�llll�b��ll`rll��|�l�|�l�b|���...

i tried to flash the latest 1.8.7 firmware into the esp8266 nodemcu amica
however it will result in continuous text dump on the screen.
version 1.8.6 gives similar results

version 1.8.4 does work.
How to proceed?

.F