Search found 13 matches

by fesp32@joov.de
Fri Oct 20, 2017 7:42 am
Forum: General Discussion
Topic: Simultaneous WiFi and Bluetooth: Paket loss and WiFi disconnects
Replies: 7
Views: 6820

Re: Simultaneous WiFi and Bluetooth: Paket loss and WiFi disconnects

Yes, I am seeing the same: - When BT is enabled I see sporadically: wifi: bcn_timout,ap_probe_send_start - When BT is enabled but disconnected: 1% packet loss on the WiFi side. - When BT is connected: 2-4% packet loss on the WiFi side, and random WiFi diassociations. - When BT is streaming: 50% pack...
by fesp32@joov.de
Wed Oct 18, 2017 9:09 am
Forum: General Discussion
Topic: Current status of external SPI SRAM support?
Replies: 3
Views: 2440

Re: Current status of external SPI SRAM support?

Many thanks for the answers! Sounds very good!
by fesp32@joov.de
Wed Oct 18, 2017 8:24 am
Forum: General Discussion
Topic: Current status of external SPI SRAM support?
Replies: 3
Views: 2440

Current status of external SPI SRAM support?

What is the current status of the external SPI SRAM support? I am referring to the ''nice' way of connecting an SPI SRAM, supported by the MMU to make the SPI SRAM visible as normal RAM in the memory map. In the errata document I can see that one problem may have been fixed, but a remaining one pers...
by fesp32@joov.de
Wed Oct 18, 2017 8:22 am
Forum: General Discussion
Topic: Silicon rev 1 differences to rev 0?
Replies: 1
Views: 2463

Silicon rev 1 differences to rev 0?

What are the exact differences (and expected benefits) of silicon rev 1 over silicon rev 0?

The ECO doc is not very conclusive:
https://espressif.com/sites/default/fil ... p32_en.pdf

Cheers,
Johannes
by fesp32@joov.de
Wed Oct 18, 2017 8:19 am
Forum: General Discussion
Topic: Simultaneous WiFi and Bluetooth: Paket loss and WiFi disconnects
Replies: 7
Views: 6820

Simultaneous WiFi and Bluetooth: Paket loss and WiFi disconnects

I have an application which uses BT Classic (an A2DP sink) and WiFi (small webserver). The WiFi related functionality works well when not using any Bluetooth at all. When I enable Bluetooth Classic and even just establish a BT connection, I observe massive packet loss on the WiFi side. While streami...
by fesp32@joov.de
Wed Oct 11, 2017 9:27 pm
Forum: General Discussion
Topic: Commercial solution for WiFi+BT Classic (A2DP-Sink)+BTLE on ESP32
Replies: 0
Views: 1257

Commercial solution for WiFi+BT Classic (A2DP-Sink)+BTLE on ESP32

Hello, I am looking for a commercial solution to get all of the following to run on an ESP-WROOM-32 module: - WiFi - BT Classic, in particular A2DP and AVRCP. - BTLE (for configuration of the WiFi parameters for example) - and a reasonable sized application (e.g. consuming 100 kB DRAM) I am struggli...
by fesp32@joov.de
Tue Jun 20, 2017 8:55 am
Forum: General Discussion
Topic: Use single core to free RAM/heap (disable flash-cache of 2nd core)
Replies: 3
Views: 3155

Re: Use single core to free RAM/heap (disable flash-cache of 2nd core)

Many thanks for the fast and precise reply. I see the 32 kBytes now as IRAM in the boot-up messages, and as you said they do not increase the size reported by esp_get_free_heap_size() used by malloc() etc. Unfortunately when enabling Bluetooth this also does not re-use this IRAM region automatically...
by fesp32@joov.de
Tue Jun 20, 2017 8:11 am
Forum: General Discussion
Topic: Use single core to free RAM/heap (disable flash-cache of 2nd core)
Replies: 3
Views: 3155

Use single core to free RAM/heap (disable flash-cache of 2nd core)

Hi all, I am trying to squeeze an app into the ESP32 which uses Bluetooth and Wifi and heap space is under pressure. I do not need a lot of CPU so I am happy to disable the second CPU to free some RAM. I disabled CONFIG_MEMMAP_SMP and I enabled CONFIG_FREERTOS_UNICORE and this gives me 5748 addition...
by fesp32@joov.de
Wed Jun 14, 2017 1:29 pm
Forum: General Discussion
Topic: Bluetooth A2DP Source example? (ESP32 streaming to BT speaker)
Replies: 4
Views: 6816

Bluetooth A2DP Source example? (ESP32 streaming to BT speaker)

Hi, I understand that the ESP32 uses the Bluedroid Stack which apparently supports A2DP Source and Sink services (please correct me if this is wrong). The esp-idf contains an a2dp_sink example which works. If have the following questions: - Can the ESP32 also act as an audio source, i.e. A2DP Source...
by fesp32@joov.de
Mon May 22, 2017 7:16 am
Forum: General Discussion
Topic: Monitoring serial output without reset
Replies: 2
Views: 4256

Re: Monitoring serial output without reset

Many thanks! Just attaching screen works! Why di dI not just try this? I should have just tried it. I was confused in thinking that the 'make monitor' and 'make simple_monitor' targets do some other required setup to get to the serial console, but just attaching a serial terminal works just like tha...

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