Search found 404 matches

by Deouss
Thu Jan 30, 2020 4:15 pm
Forum: Hardware
Topic: Synchronizing SPIs
Replies: 5
Views: 437

Re: Synchronizing SPIs

SPI is a serial exchange protocol which means that each bit of a value being sent is presented to the MOSI (for a master - MISO for a slave device) pin in line with the SCK transitions. Therefore I have no idea how this relates to the gpio_matrix_out function. Yes but normally all bits go through o...
by Deouss
Thu Jan 30, 2020 4:02 pm
Forum: ESP32 IDF
Topic: Porting esptool.py to C
Replies: 7
Views: 1724

Re: Porting esptool.py to C

I tried once porting it to C# which would be much smoother but got stuck on SLIP protocol and stopped project.
by Deouss
Wed Jan 29, 2020 3:11 pm
Forum: Hardware
Topic: Synchronizing SPIs
Replies: 5
Views: 437

Re: Synchronizing SPIs

Thanks Susan. It is complicated, I'm trying to synchronize 2 or more devices that should read data at exact time.
I will look for more solutions I think.
Looks like gpio_matrix_out can map bits 4-7 of SPI data byte to individual pins which may help if it works
by Deouss
Tue Jan 28, 2020 3:50 pm
Forum: Hardware
Topic: Synchronizing SPIs
Replies: 5
Views: 437

Synchronizing SPIs

I would like to send signals from all SPIs at exact time so I know when all transmissions end at same time Are they synchronized by default or must be configured? I also noticed there are special functions for SPI pins as output: (gpio_sig_map.h) #define SPID4_IN_IDX 128 #define SPID4_OUT_IDX 128 #d...
by Deouss
Sun Jan 26, 2020 4:37 pm
Forum: ESP32 IDF
Topic: Standalone SDK
Replies: 5
Views: 363

Re: Standalone SDK

ESP_Sprite wrote: Actually, if I recall correctly, ESP8266 also uses a minimal RTOS under the hood (XTOS). Also, how would the things you mention not be possible with a RTOS?

So you are saying non-OS SDK for ESP8266 is actually a minimal RTOS ?
by Deouss
Sat Jan 25, 2020 3:07 pm
Forum: ESP32 IDF
Topic: Standalone SDK
Replies: 5
Views: 363

Re: Standalone SDK

I understand the re-architecturing problem for non-OS SDK, however looking at ESP8266 it is possible and works good. Intercommunication sometimes is not crucial in many performance projects and also having bare metal execution gives more management control over memory and the way the whole system be...
by Deouss
Fri Jan 24, 2020 2:25 pm
Forum: ESP32 IDF
Topic: Standalone SDK
Replies: 5
Views: 363

Standalone SDK

I know current IDF supports FreeRTOS but maybe in the future it would be also good to have a standalone SDK for ESP32?
Do you think it is possible and have you consider such development?

Thanks!
by Deouss
Sat Jan 11, 2020 10:00 pm
Forum: Hardware
Topic: ESP32 5GHz
Replies: 23
Views: 17890

Re: ESP32 5GHz

ESP_Sprite wrote:
Mon Jan 06, 2020 10:25 am
Nothing I can make public that's more than 'we're working on it', sorry.
Can you give us some more details? :?:
by Deouss
Sat Dec 28, 2019 2:56 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 345
Views: 117894

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

I would still consider Risc-V /64bit - why not - architecture is perfect for ESP64 )
Going with ARM increases costs unfortunately ...
by Deouss
Mon Dec 23, 2019 1:48 am
Forum: General Discussion
Topic: analoglamb
Replies: 4
Views: 580

Re: analoglamb

Interesting) I wonder why instead of ARM33 - use Risc-V with same configuration
That board will not be cheap. I'd rather go with Kendryte )
Cheers

Go to advanced search