Search found 77 matches

by Lucas.Hutchinson
Sun Jan 06, 2019 7:19 pm
Forum: ESP32 IDF
Topic: UART reception variable length message (no pattern)
Replies: 2
Views: 1009

Re: UART reception variable length message (no pattern)

Bumping to see if anyone can help with my question.

Cheers.
by Lucas.Hutchinson
Wed Dec 19, 2018 3:58 am
Forum: ESP32 IDF
Topic: UART reception variable length message (no pattern)
Replies: 2
Views: 1009

UART reception variable length message (no pattern)

Hi All, I have a currently working uart messaging protocol that sends variable lenght messages between the esp32 and another microcontroller. I am wanting to change from the current method, which keeps the uart task very busy with small vtask_delay's, to an interrupt based reception. This is to prev...
by Lucas.Hutchinson
Thu Sep 27, 2018 2:29 am
Forum: ESP32 IDF
Topic: Bin files still contain assert and code strings
Replies: 4
Views: 1081

Re: Bin files still contain assert and code strings

Bump, @ESP_Angus, any thoughts on this?

It seems to be related to the

Code: Select all

ESP_ERROR_CHECK
macro
by Lucas.Hutchinson
Tue Sep 25, 2018 2:11 am
Forum: ESP32 IDF
Topic: Bin files still contain assert and code strings
Replies: 4
Views: 1081

Bin files still contain assert and code strings

Hey All, Trying to get small build binaries, and ultimately byte identical build repeat-ability on different computers, however i am running into some issues. I have tried to disable all logging, as well as more importantly removing the assert prints using the silent assert mode( and even with asset...
by Lucas.Hutchinson
Tue Mar 13, 2018 8:25 pm
Forum: ESP32 IDF
Topic: UART baudrate sensitivity
Replies: 2
Views: 1349

Re: UART baudrate sensitivity

You might have to test out when the baud rate mis-match starts causing issues between the two processors.

Usually the lower the baud rate, the less of an issue this is.
4800 baud is pretty slow so you should be fine.
by Lucas.Hutchinson
Tue Mar 13, 2018 8:23 pm
Forum: Hardware
Topic: A schematic for this dev board ?
Replies: 5
Views: 2079

Re: A schematic for this dev board ?

This dev board uses the standard Wroom32 module from espressif.

The code that is currently loaded into the Chip is the standdard hello world application in the espressif ESP-IDF on githib.

You should be able to load and program all the standard examples to this board.
by Lucas.Hutchinson
Tue Mar 13, 2018 8:21 pm
Forum: General Discussion
Topic: ESP32 OTA via BLE
Replies: 14
Views: 9257

Re: ESP32 OTA via BLE

Also try making your connection interval shorter. this may improve the transfer time.

Out of curiosity approximately what is the update time once you increased the MTU to 500?
by Lucas.Hutchinson
Tue Mar 13, 2018 8:19 pm
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 311
Views: 101061

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

Thanks for the feedback @ESP_Sprite. Looks like there is going to be an even better chip coming the the next little wile (well at least little while on a new silicon timeframe..) One thing to mention about the USB 2.0 Perhaps if for the next chip adding a 2.0PHY is not possibly/practical, enabling a...
by Lucas.Hutchinson
Tue Mar 13, 2018 8:13 pm
Forum: General Discussion
Topic: Wifi / Bluetooth Problems with custom Board
Replies: 6
Views: 2049

Re: Wifi / Bluetooth Problems with custom Board

Check that you have a full ground plane underneath the crystal.
We has a similar problem with the debug uart lines going under the crystal.

Also try contacting espressif directly via email. Their hardware support team is great and really helpful.
by Lucas.Hutchinson
Wed Jan 24, 2018 12:49 am
Forum: ESP32 IDF
Topic: BLE communication between EPS32 and Mobile phones
Replies: 1
Views: 1061

Re: BLE communication between EPS32 and Mobile phones

This can be achieved with some simple modifications to the gatt_server or gatt_server_service_table examples in the IDF. You will first need to set your interval to 20ms. You can set this with the following code: esp_ble_conn_update_params_t conn_params; //todo maybe turn this into malloc/free memcp...

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