Search found 9 matches

by Linetkux Wang
Tue Jun 18, 2024 2:52 pm
Forum: General Discussion
Topic: ESP32-S3 capacity to relay 1080P/2K video
Replies: 3
Views: 824

Re: ESP32-S3 capacity to relay 1080P/2K video

It seems AMB82 has H264/H265 support, so you can make it possible for 1080P/30FPS with much lower bitrates. UART is much simpler that SPI, and ESP32S3 UART supports up to 5Mbps. Also you may limit the bitrates on AMB82 side, and I beleive that AMB82 has such kind of API. So the conclusion is that: 1...
by Linetkux Wang
Tue Jun 18, 2024 2:30 pm
Forum: ESP-IDF
Topic: Help in Decoding Wifi W (223029) wifi:[ADDBA]rx delba, code:37, delete tid:0
Replies: 3
Views: 3362

Re: Help in Decoding Wifi W (223029) wifi:[ADDBA]rx delba, code:37, delete tid:0

This is the A-MPDU related feature introduced into Wi-Fi since Wi-Fi4. W (223029) wifi:[ADDBA]rx delba, code:37, delete tid:0 Means in the Rx direction, Block Ack Agreement is deleted because of reason(37). Look up the IEEE802.11 spec, you can find that 37 means "Requesting STA is no longer using th...
by Linetkux Wang
Tue Jun 18, 2024 2:20 pm
Forum: ESP-IDF
Topic: Disappointing WiFi performance ESP32-S3
Replies: 18
Views: 4851

Re: Disappointing WiFi performance ESP32-S3

I think you may totally disable PSRAM. If that helps, then you may use octal PSRAM with 80MHz or 120MHz.
by Linetkux Wang
Tue Jun 18, 2024 2:05 pm
Forum: General Discussion
Topic: Looking for suggestion for MP3 decoder
Replies: 3
Views: 1599

Re: Looking for suggestion for MP3 decoder

You need fixed point decoder which is for MCU without hardware float.
Maybe this: https://github.com/liuduanfei/helix
or this: https://github.com/ultraembedded/libhelix-mp3
by Linetkux Wang
Tue Jun 18, 2024 2:01 pm
Forum: General Discussion
Topic: ESP32-C3 and W5500 Link Up Issue
Replies: 2
Views: 1253

Re: ESP32-C3 and W5500 Link Up Issue

Maybe you should share your ethernet PI configuration, like this I used for my ESP32-S3 + W5500 Espressif IoT Development Framework Configuration [*] SPI Ethernet (1) Number of SPI Ethernet modules to use at a time Ethernet SPI (W5500 Module) ---> (1) SPI Host Number (12) SPI SCLK GPIO number (11) S...
by Linetkux Wang
Tue Jun 18, 2024 1:37 pm
Forum: General Discussion
Topic: Clear DNS lookup table
Replies: 6
Views: 6462

Re: Clear DNS lookup table

I think memset break the status of the dns table entry. Maybe we should borrow the internal-built mechanism, such as TTL. We may set the TTL of each entry to a small value such as 5, so the tmr of DNS can invaid it in advance. Realted code: 1187 case DNS_STATE_DONE: 1188 /* if the time to live is nu...
by Linetkux Wang
Tue Jun 18, 2024 1:32 pm
Forum: ESP-IDF
Topic: More secure Bluetooth LE pairing method
Replies: 19
Views: 5892

Re: More secure Bluetooth LE pairing method

Glad this will help, and according to your description, I think you may put the gatekeeper code to enable/disable BLE passage just before the final input function. +---------+ | BLE | +---------+ | v +----------------+ | Gatekeeper | +----------------+ | v +-----------------+ | Service Handler | +--...
by Linetkux Wang
Tue Jun 18, 2024 6:25 am
Forum: ESP-IDF
Topic: More secure Bluetooth LE pairing method
Replies: 19
Views: 5892

Re: More secure Bluetooth LE pairing method

I am afraid that you may still choose to use some special attribute for second-step auth. Here is my sugguestion: For enhancing the security of your BLE setup, you can implement a mechanism using a special attribute that must be written with a correct session key or similar password. This attribute ...
by Linetkux Wang
Sun Jun 16, 2024 2:44 pm
Forum: General Discussion
Topic: Clear DNS lookup table
Replies: 6
Views: 6462

Re: Clear DNS lookup table

You need to call dns cache clear within LWIP task context. #include "lwip/tcpip.h" #include "lwip/dns.h" #include "stdio.h" // Data structure for passing to tcpip_api_call struct dns_clear_cache_call_data { // No parameters needed }; // Function to clear DNS cache void dns_clear_cache(void) { extern...