Search found 33 matches

by tvoneicken
Fri Jan 22, 2021 9:10 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 399
Views: 239711

Re: What would you like to see in The Next Chip?

RPi PIO peripheral On a personal note: Not gonna lie, I'm drooling all over that thing as well. :-) :-) :-) One thing I'm really missing in that PIO thing is the ability to do a table lookup (i.e. random memory access) to do things like color table lookup when sending a framebuffer to a display... ...
by tvoneicken
Thu Jan 21, 2021 6:00 pm
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 399
Views: 239711

Re: What would you like to see in The Next Chip?

RPi PIO peripheral
by tvoneicken
Thu Dec 24, 2020 4:45 pm
Forum: ESP-IDF
Topic: unicore -> more IRAM0 ?
Replies: 2
Views: 534

Re: unicore -> more IRAM0 ?

Thanks for all the info, igrr! I only had half the CONFIG_ options, so that gives me some more to play with, and the info about how to change the load map is also very helpful!
by tvoneicken
Thu Dec 24, 2020 4:41 am
Forum: ESP-IDF
Topic: unicore -> more IRAM0 ?
Replies: 2
Views: 534

unicore -> more IRAM0 ?

I'm running into trouble moving MicroPython to esp-idf v4.2 because IRAM usage has shot through the roof, it seems. Compiled with the same options it's 20k over iram0_0_seg. Questions: - if I set CONFIG_FREERTOS_UNICORE=y is there a way to get the 32KB of core 1's cache added to iram0_0_seg? - Is th...
by tvoneicken
Mon Dec 07, 2020 1:53 am
Forum: General Discussion
Topic: ESP32-C3 RISC-V Core - ...What i found just in time ...
Replies: 24
Views: 11117

Re: ESP32-C3 RISC-V Core - ...What i found just in time ...

Has anything leaked about the C2 and S4? I had thought I had seen something about the C2, but now I can't find it. Prob got confused in all this nomenclature!
by tvoneicken
Thu May 28, 2020 7:41 am
Forum: ESP-IDF
Topic: Where does crypto happen?
Replies: 3
Views: 1531

Re: Where does crypto happen?

Thanks for the response! I a bit confused by this: In particular, RSA-based ciphersuite verification (with hardware MPI acceleration) is much faster in recent versions of ESP-IDF, and significantly faster than DHE / ECDHE Did you perhaps mean RSA vs. DSS / ECDSA? I'm looking at cipher suites with pe...
by tvoneicken
Wed May 27, 2020 3:56 am
Forum: ESP-IDF
Topic: Where does crypto happen?
Replies: 3
Views: 1531

Where does crypto happen?

When I connect to a server using TLS, the connection can block for close to a full second depending on the cipher suite used. Currently, as far as I can tell, the app calls pretty directly into mbedtls, which means that the crypto all happens on the app core. Is there an easy way to move the crypto ...
by tvoneicken
Tue May 26, 2020 4:57 am
Forum: ESP-IDF
Topic: Task not launching even with plenty of free internal RAM
Replies: 4
Views: 1411

Re: Task not launching even with plenty of free internal RAM

Memory fragmentation? The stack has to be contiguous and there may not be any contiguous chunk of that size.
by tvoneicken
Mon Jan 06, 2020 3:10 am
Forum: Hardware
Topic: ESP32-WROOM-32 flash mode and speed
Replies: 1
Views: 1387

Re: ESP32-WROOM-32 flash mode and speed

Any suggestions for where to find an answer?
by tvoneicken
Fri Dec 27, 2019 11:03 pm
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 399
Views: 239711

Re: What would you like to see in The Next Chip?

After spending a couple of days banging my head against auto-light-sleep I wish the next round of chips have a bit more thought put into low power operation. Specifically, I find the fact that most peripherals stop working properly in light sleep to be abysmal, the uart being the first issue that mu...

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