Search found 114 matches

by newsettler_AI
Wed Oct 24, 2018 12:36 pm
Forum: General Discussion
Topic: Auto flashing error (GPIO0 need to be manually set low)
Replies: 2
Views: 1006

Re: Auto flashing error (GPIO0 need to be manually set low)

Probably one of your two transistors is broken, that control the DTR RTS signals.
but how can it be damaged with sofware problem? It was only some kind of hard fault...
by newsettler_AI
Wed Oct 24, 2018 9:44 am
Forum: General Discussion
Topic: Auto flashing error (GPIO0 need to be manually set low)
Replies: 2
Views: 1006

Auto flashing error (GPIO0 need to be manually set low)

Hello! I'm using ESP32 DOIT kit. I flashed it automatically with onboard CP2102 usb-uart converter. But once I got app crash (says CPU halted) I'm not available to flash it in auto mode. Now I have to hold GPIO_0 on ground untill flashing will be done, even with fixed code its not flashing automatic...
by newsettler_AI
Mon Jul 23, 2018 4:24 pm
Forum: General Discussion
Topic: BT SPP acceptor error: "Cache disabled but cached memory region accessed" while pairing
Replies: 0
Views: 938

BT SPP acceptor error: "Cache disabled but cached memory region accessed" while pairing

Hello, I'm running modified SPP acceptor example and WiFi in AP mode simultaneosly. Aslo there are deployed UART (GPIO 5, 18) and some LEDs (GPIO 13, 15, 21, 16, 17). I cant robustly pair via Bluetooth and esp32 from android tablet (i.e. I'm able to connect after 2-3 retries). Here is log: Guru Medi...
by newsettler_AI
Fri Jun 22, 2018 11:27 am
Forum: General Discussion
Topic: TCP server: assertion "netconn_alloc: undefined netconn_type" failed
Replies: 2
Views: 2024

Re: TCP server: assertion "netconn_alloc: undefined netconn_type" failed

I think it would be useful to know which source statement in the user application is being called which generates the failure. Hopefully it is the same statement each time. I think it would be useful to know which source statement in the user application is being called which generates the failure....
by newsettler_AI
Thu Jun 21, 2018 1:22 pm
Forum: General Discussion
Topic: TCP server: assertion "netconn_alloc: undefined netconn_type" failed
Replies: 2
Views: 2024

TCP server: assertion "netconn_alloc: undefined netconn_type" failed

Hello, I'm using ESP32 as wifi AP with tcp server on it. Android phone runs app that have next logic: 1) connects to esp32 wifi AP 2) connects to TCP socket 3) exchanging TCP data (about 900 bytes (6 packets of 150 bytes) in total) 4) closing socket connection. 5) back to step 2. Sometimes I got nex...
by newsettler_AI
Wed Jun 13, 2018 1:11 pm
Forum: General Discussion
Topic: PDM microphone - how properly handle data?
Replies: 7
Views: 2960

Re: PDM microphone - how properly handle data?

I have connected SELECT to GND and set in i2s_config.channel_format = I2S_CHANNEL_FMT_ALL_RIGH . So my final settings at init are next: void ICS41350_init(void) { i2s_config_t i2s_config = { .mode = I2S_MODE_MASTER | I2S_MODE_RX| I2S_MODE_PDM, .sample_rate = 44100, .bits_per_sample = I2S_BITS_PER_SA...
by newsettler_AI
Tue Jun 12, 2018 11:51 am
Forum: General Discussion
Topic: PDM microphone - how properly handle data?
Replies: 7
Views: 2960

Re: PDM microphone - how properly handle data?

Now I'm not sure about wiring... I have connected microphone pins to ESP32: GND - GND VCC - 3.3V SELECT - not connected DATA - IO_2 (i2s_pin_config > data_in_num) CLOCK - IO_4 (i2s_pin_config > ws_io_num) Is it mandatory to connect SELECT in case I use only I2S_CHANNEL_FMT_ ONLY _RIGHT / I2S_CHANNEL...
by newsettler_AI
Mon Jun 11, 2018 6:46 pm
Forum: General Discussion
Topic: PDM microphone - how properly handle data?
Replies: 7
Views: 2960

PDM microphone - how properly handle data?

Hello, I'm trying to get data from this PDM microphone: https://www.invensense.com/wp-content/uploads/2016/02/DS-000047-ICS-41350-v1.1.pdf Here is my initialization: void i2s_init() { int i2s_num = 0; i2s_config_t i2s_config = { .mode = I2S_MODE_MASTER | I2S_MODE_RX |I2S_MODE_PDM, .sample_rate = 480...
by newsettler_AI
Thu May 31, 2018 12:30 pm
Forum: General Discussion
Topic: I2S: how to enable PDM to PCM converter?
Replies: 4
Views: 2395

Re: I2S: how to enable PDM to PCM converter?

It's a flag "I2S_MODE_PDM = 64" in the i2s_mode_t structure in the i2s_config_t structure, passed to the "i2s_driver_install(i2s_port_t i2s_num, const i2s_config_t *i2s_config, int queue_size, void* i2s_queue);" function. After checking your link I see it's not in your branch of the SDK. John A So,...
by newsettler_AI
Wed May 30, 2018 10:41 am
Forum: General Discussion
Topic: I2S: how to enable PDM to PCM converter?
Replies: 4
Views: 2395

Re: I2S: how to enable PDM to PCM converter?

Any updates?

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