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by hassan789
Tue Oct 03, 2017 3:22 am
Forum: ESP-IDF
Topic: SPIRAM pSRAM malloc support added to esp-idf
Replies: 2
Views: 1792

SPIRAM pSRAM malloc support added to esp-idf

Looks like esp team has added malloc support for psram, as of this commit:

Code: Select all

https://github.com/espressif/esp-idf/commit/ca7da78bc769cfb6f49a5909abd07e0b06439c66
latest doc:

Code: Select all

https://github.com/espressif/esp-idf/blob/master/docs/api-guides/external-ram.rst
:D
by hassan789
Wed Sep 13, 2017 4:40 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 387
Views: 183639

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

A fully functioning chip at 1.8V (flash and wifi)
(3.3v will soon go obsolete, just like 5v)
by hassan789
Sun Sep 03, 2017 2:42 am
Forum: Hardware
Topic: ESP32 Board with JTAG breakout
Replies: 2
Views: 2515

Re: ESP32 Board with JTAG breakout

I would skip segger, and use the wrover dev board.
J-Link is painfully slow and crashy.
by hassan789
Sun Sep 03, 2017 2:29 am
Forum: Hardware
Topic: Trying for successful GDB, stuck and unsure how to correct
Replies: 1
Views: 1792

Re: Trying for successful GDB, stuck and unsure how to correct

Debugging is a bit of a pain... Have you tried visualgdb yet? you should be up and running in 30min https://visualgdb.com/tutorials/esp32/ Step 1: Install visual studio community and add the following plugin: http://sysprogs.com/files/visualgdb/VisualGDB-5.3-preview7.msi Step2: Enable the JTAG debug...
by hassan789
Sat Sep 02, 2017 10:10 pm
Forum: General Discussion
Topic: ESP32's internal boot ROM and UART1
Replies: 3
Views: 3545

Re: ESP32's internal boot ROM and UART1

SomeCallMeTim wrote:Does this mean that we could, with the ESP32-D2WD, utilize UART1 at 1.8V logic to program the flash on the ESP32-D2WD part?
Very good question.
I am also interested to know the answer to this.
by hassan789
Sat Sep 02, 2017 9:54 pm
Forum: General Discussion
Topic: while using uart-1 receive interrupt and WiFi together in ESP32 , module is resetting after receiving data 3-4 times
Replies: 6
Views: 3520

Re: while using uart-1 receive interrupt and WiFi together in ESP32 , module is resetting after receiving data 3-4 times

Hi, one solution would be to execute from ram, instead of flash. And do not use the flash at all...
Sorry to hear about this.

Is this on the D2WD chip?
by hassan789
Tue Aug 29, 2017 4:17 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 387
Views: 183639

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

ESP32 HW Additions, Wishlist
- UART on the ULP
- low power wifi (~300uA @ DTIM3, or lower?)
- better debugging! :)
by hassan789
Tue Aug 29, 2017 3:11 am
Forum: Hardware
Topic: 26MHz TCXO (not crystal) -- which pin to connect to?
Replies: 10
Views: 6882

Re: 26MHz TCXO (not crystal) -- which pin to connect to?

Thanks for confirming ESP_Angus!
by hassan789
Mon Aug 28, 2017 4:16 pm
Forum: General Discussion
Topic: ESP32-LyraT -- Wireless Audio & AI
Replies: 9
Views: 7390

Re: ESP32-LyraT -- Wireless Audio & AI

kurtzweber wrote: do you think it will have an external decoder or everything will be implemented in software? It would be great to have those decoders in esp-idf...
I think their 1st design had an external HW codec chip (which would cost $$). I hope they have fixed that now, and have a SW based solution.

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