Setting serial baud rate on ESP-IDF does nothing
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Setting serial baud rate on ESP-IDF does nothing
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Re: Setting serial baud rate on ESP-IDF does nothing
#2Is it common for microcontrollers to lack comprehensive documentation, or is it just espressif?
Re: Setting serial baud rate on ESP-IDF does nothing
#3Is it common for microcontrollers to lack comprehensive documentation, or is it just espressif?
I'm not sure what you mean. There's a 779 page reference manual for the ESP32 series: https://www.espressif.com/sites/default/files/documentation/...
Re: Setting serial baud rate on ESP-IDF does nothing
#4Is it common for microcontrollers to lack comprehensive documentation, or is it just espressif?
uh - you clearly misunderstood something. The video is about the port of the Arduino framework that is running on the ESP32. on the ESP32-S* that have native USB that has implications that makes the option of setting a baud rate for them using the Arduino Framework superfluous.
The ESP32 Variants have pretty good documentation themself.
Re: Setting serial baud rate on ESP-IDF does nothing
#5Is it common for microcontrollers to lack comprehensive documentation, or is it just espressif?
There are very well documented uCs. I have to admit , is not like in the good old days, but there are decent documented uCs.
One thing is happening: as uC (and ASIcs) are getting more complex and complicated, more features are added and not fully (or at all) documented.
Re: Setting serial baud rate on ESP-IDF does nothing
#6Is it common for microcontrollers to lack comprehensive documentation, or is it just espressif?
I was troubleshooting some code of mine that talks to a product Adafruit has been selling for ten years. It turns out the documentation was just plain wrong. Thankfully Adafruit's source code was posted and I could quite confidently see the right way to do it, and submitted feedback on the documentation bug.
But I think this is a space where due to the relative ease and cheapness of putting out a product and often fixing it after the fact, there's less eyeballs on any given aspect of a board or the software loaded on it.
And a years younger me noticed the issue! But I worked around it instead of reporting it. This time I figured out the source of the problem... but the documentation has been wrong a long time in between. ;)
Re: Setting serial baud rate on ESP-IDF does nothing
#7Is it common for microcontrollers to lack comprehensive documentation, or is it just espressif?
My experience with microcontrollers is not up to date. Most of the stuff I did was 15 years ago.I remember, Espressif really disrupted the market. Things changed already with Advent of Arduino. Before that people wrote a lot of asm code inline and MCUs particularly from microchip had really good documentations (sure some quirks and errata always appeared later, but as I remember they found their ways into data sheets and application notes). Particularly as binary blobs e.g. for network appeared the API went from well defined hardware interfaces to libraries, etc. Today it is even common for some of those domain specific IC that typically rather contain an MCU that you have to sign NDAs to get access to documentation of some parts.
Re: Setting serial baud rate on ESP-IDF does nothing
#8The screenshot shows a software called "WebSerial Audio Studio". I couldn't find it, only https://serial-studio.com/ which also looks great (and has an open source edition). Does anyone know if it is the same? Looks pretty handy. Microchip had something not so sophisticated years ago.
Re: Setting serial baud rate on ESP-IDF does nothing
#9I believe this is just down to USB CDC, where baudrate doesn’t affect the USB transfer speed.
Re: Setting serial baud rate on ESP-IDF does nothing
#10The baud rate is just sent to the USB device, so that if you were making a real USB-serial adapter, you'd know how fast to go :)