Search found 5 matches

by alongoldman
Wed May 15, 2019 12:04 pm
Forum: General Discussion
Topic: I2S 8CH ADC
Replies: 2
Views: 732

Re: I2S 8CH ADC

Yes, it's fully working in TDM.
I just needed to div/4 the WS clock output of the ESP32 to fit the required WS clock input of the ADC in TDM 8ch mode.
I have an FPGA to handle that for me but you can use a simple D-FF ic to do the clock div.
by alongoldman
Thu Apr 25, 2019 6:21 am
Forum: General Discussion
Topic: Wifi dropping and having issues in softAP mode
Replies: 0
Views: 138

Wifi dropping and having issues in softAP mode

Using iperf example in STA mode everything is fine but when doing the same test in softAP mode It seems to drop frames. This is running on my own HW, I was having the same issues with my own code so I verified with iperf, latest ESP-IDF. softAP: esp32> iperf -s -i 3 I (133617) cmd_wifi: mode=tcp-ser...
by alongoldman
Sun Oct 14, 2018 2:44 pm
Forum: ESP32 IDF
Topic: I2S to WIFI
Replies: 3
Views: 671

Re: I2S to WIFI

i2s_read(ADC_I2S_NUM,(char*) &i2s_read_buff[0],i2s_read_len,&bytes_read,portMAX_DELAY); EventBits_t uxBits=xEventGroupGetBits(xHMEventGroup); if( ( uxBits & BIT_xHMEventGroup_sendRaw2Socket ) == BIT_xHMEventGroup_sendRaw2Socket ){ if(xQueuePeek(xQueueSocket, &s, 100 )) { bytes_sent = write(s , (char...
by alongoldman
Mon Oct 08, 2018 9:50 am
Forum: ESP32 IDF
Topic: I2S to WIFI
Replies: 3
Views: 671

I2S to WIFI

I'm using I2S to extract data from ADC at 32bit 128KHz 2CH. I'm trying to send the raw data over a WiFi socket to a .NET C# Winform application that just collects the data in an array I'm experiencing occasional data loss, but I'm not even sure which side is at fault (PC or ESP). What is the recomme...
by alongoldman
Fri May 18, 2018 5:43 am
Forum: General Discussion
Topic: I2S 8CH ADC
Replies: 2
Views: 732

I2S 8CH ADC

Hi, I'm working on a project to connect AK5538VM ADC to ESP32. The ADC will provide the MCLK so it would be the master in this setup. The AK5538VM is an 8CH audio ADC, it can output data in 2 ways: 1. through 4 discrete pins, each pin outputs a 2CH standard I2S audio stream 2. through 1 discrete pin...

Go to advanced search