Search found 48 matches

by littlesky
Thu Jan 24, 2019 3:33 am
Forum: Hardware
Topic: Highest frequency of ESPNOW data transfer
Replies: 1
Views: 648

Re: Highest frequency of ESPNOW data transfer

1. Is this the real limit of espnow? —— ESPNOW data is carried in action frame and the physical rate and memory for action frame is limited. So the throughput of ESPNOW data is limited. 2. how can we get failure flag like "E (16662)...." so that we could resend —— The log represents lack of memory t...
by littlesky
Tue Jan 08, 2019 7:12 am
Forum: ESP32 IDF
Topic: Does wifi connection take too long?
Replies: 3
Views: 2215

Re: Does wifi connection take too long?

@eyaleb Please try this

Code: Select all

    wifi_config_t wifi_config = {
        .sta = {
            .ssid     = AP_SSID,
           .password = AP_PASS,
           .scan_method = WIFI_FAST_SCAN,
           .bssid_set = 0,
        },
    };
by littlesky
Thu Dec 13, 2018 6:21 am
Forum: ESP-IDF 中文讨论版
Topic: sdio与wifi接收同时工作,会增加wifi接收的丢包率吗?
Replies: 6
Views: 2051

Re: sdio与wifi接收同时工作,会增加wifi接收的丢包率吗?

1·sdio与wifi接收同时工作,会增加wifi接收的丢包率吗? —— sdio 任务的优先级是多少?若是比较低的话不会增加 wifi 接收的丢包率。 2·是不是因为sdio与wifi接收同时工作,sdio输出20mhz的时钟,影响了wifi的接收灵敏度吗? —— 不会。 3·wifi代码不开源,wifi_sniffer_packet_handler是在wifi接收中断中执行的吗? —— 不是,是在 wifi 任务中执行的。 4·wifi中断优先级比sdio_host中断的优先级要高吗? —— 优先级是一样的。 建议: 1. sdio 任务优先级设低一些,至少低于 23. 2. sniffe...
by littlesky
Tue Dec 11, 2018 2:34 am
Forum: ESP32 IDF
Topic: WiFi connection works only after router reboot
Replies: 2
Views: 523

Re: WiFi connection works only after router reboot

Could you please tell us the brand and firmware version of the router? It is also appreciated to capture the packets of the connection procedure and provide to us.
by littlesky
Mon Dec 03, 2018 3:36 am
Forum: ESP32 IDF
Topic: esp_wif_internal_tx API fails
Replies: 2
Views: 628

Re: esp_wif_internal_tx API fails

esp_wifi_internal_tx is internally used. Please use esp_wifi_80211_tx instead. It can not make sure that the packet has reached destination successfully now, but we can implement it later.
by littlesky
Wed Nov 28, 2018 1:24 pm
Forum: ESP32 Arduino
Topic: Does ESPNow store peer mac id in NVS ?
Replies: 2
Views: 535

Re: Does ESPNow store peer mac id in NVS ?

Hi drsrikanthb, the peer data is not stored in NVS unless you did so in your firmware. There is no other way to keep peer data unless storing it in NVS and set it from NVS after waking up from deep sleep.
by littlesky
Wed Nov 28, 2018 6:21 am
Forum: ESP32 IDF
Topic: Wi-Fi station mode: Setting BSSID and/or channel does not accelerate connection
Replies: 9
Views: 1459

Re: Wi-Fi station mode: Setting BSSID and/or channel does not accelerate connection

I don't think you have set channel in the right way. You should set it like this, memcpy(config.sta.bssid, bssid, sizeof(config.sta.bssid)); config.sta.bssid_set = 1; memcpy(config.sta.ssid, ssid, strlen(ssid)); memcpy(config.sta.password, password, strlen(password)); config.sta.channel = channel; e...
by littlesky
Wed Nov 28, 2018 2:10 am
Forum: ESP32 IDF
Topic: Wi-Fi station mode: Setting BSSID and/or channel does not accelerate connection
Replies: 9
Views: 1459

Re: Wi-Fi station mode: Setting BSSID and/or channel does not accelerate connection

`esp_wifi_set_channel()` does not work for fast connection. To accelerate connection, you should specify `channel` field of `wifi_sta_config_t` to that of AP instead.
ESP32 is different with ESP8266, it can not accelerate connection with BSSID and WIFI_FAST_SCAN specified.
by littlesky
Tue Nov 27, 2018 7:36 am
Forum: General Discussion
Topic: Wi-Fi RTT (IEEE 802.11mc) on ESP32
Replies: 7
Views: 1484

Re: Wi-Fi RTT (IEEE 802.11mc) on ESP32

We have document WiFi.rst for how to get channel state information. But we haven't document or example for how to use it to measure distance. Distance measurement is just one of the specific applications of channel state information, so it is not much possible to describe it in IDF.

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