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by ESP_Sprite
Thu May 28, 2020 8:58 pm
Forum: ESP32 Arduino
Topic: Making use of the built in BASIC interpreter
Replies: 13
Views: 8012

Re: Making use of the built in BASIC interpreter

Sorry, this topic is from 2015... in the mean time, we found an issue where the ESP32 sometimes accidentally boots into the BASIC interpreter and hangs there, so we had to disable it. Most recent ESP32s can't boot into BASIC anymore.
by ESP_Sprite
Thu May 28, 2020 8:55 pm
Forum: ESP-WHO
Topic: help please
Replies: 13
Views: 1033

Re: help please

Great, you fixed the first issue I mentioned in my post! How about the other two?
by ESP_Sprite
Thu May 28, 2020 6:59 am
Forum: Report Bugs
Topic: Spurious panic in crosscore
Replies: 4
Views: 554

Re: Spurious panic in crosscore

Not sure if you can conclude that the issue is in crosscore... all the other tasks are in there (mostly because they yielded, and that is the last position the task will be in before they get descheduled) but all we know of the crashing tasks is that they called abort; the stack trace is broken from...
by ESP_Sprite
Thu May 28, 2020 6:50 am
Forum: Hardware
Topic: Interrupt pins stay triggered when powering on Stepper Controller
Replies: 3
Views: 358

Re: Interrupt pins stay triggered when powering on Stepper Controller

Do you have an oscilloscope you can connect to the Hall sensor output pins? Sounds like you're getting interference from the steppers on those lines.
by ESP_Sprite
Thu May 28, 2020 6:46 am
Forum: ESP-WHO
Topic: help please
Replies: 13
Views: 1033

Re: help please

1. Your image is broken, as the link does not point to the image but a page with the image on it
2. Your terminal somehow is set to 57600 baud. Try 115200.
(And 3. In general, we can do more for you when you put in details of what you're trying to run/do, on what platform, with what software.)
by ESP_Sprite
Wed May 27, 2020 3:22 pm
Forum: ESP32 IDF
Topic: mismatch vTaskDelay and cycle count using XTHAL_GET_CCOUNT() ?
Replies: 4
Views: 2392

Re: mismatch vTaskDelay and cycle count using XTHAL_GET_CCOUNT() ?

CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ is a compile-time constant; it indicates the *default* CPU frequency. If you change the frequency at run-time, obviously the value doesn't match your situation anymore.
by ESP_Sprite
Wed May 27, 2020 8:48 am
Forum: ESP32 Arduino
Topic: Direct access to UART1 TX FIFO
Replies: 4
Views: 296

Re: Direct access to UART1 TX FIFO

Not sure, but perhaps UART_TX_IDLE_NUM has something to do with it? You may want to try setting that to 0.

While you're reading the TRM anyway, can I advise you to read into the RMT peripheral? It's actually designed to generate arbitrary waveforms and is way better at it than the UART will ever be.
by ESP_Sprite
Tue May 26, 2020 12:42 pm
Forum: General Discussion
Topic: HSPI and VSPI, meaning thereof?
Replies: 12
Views: 20331

Re: HSPI and VSPI, meaning thereof?

peterbaldock wrote:
Tue May 26, 2020 9:48 am
How about H_orizontal and V_ertical, for LCD interface?
...That makes no sense from a technological point of view, but if it makes you happy to think of them like that, I won't stop you.
by ESP_Sprite
Tue May 26, 2020 12:36 pm
Forum: ESP32 Arduino
Topic: ADC with I2S: increasing throughput to 2 MHz
Replies: 2
Views: 147

Re: ADC with I2S: increasing throughput to 2MSPS

If I recall the innards of the I2S driver correctly, the hardware will fill a buffer of `dma_buf_len` and then generate an interrupt for the I2S driver to handle that data. Given the fact that in your case, these are only 64 words, that is a great many interrupts a second... my gut feeling is that i...
by ESP_Sprite
Tue May 26, 2020 12:32 pm
Forum: General Discussion
Topic: wifi + I2s
Replies: 5
Views: 316

Re: wifi + I2s

'capturing' the WiFi signal from a cell phone? Can you be a bit more precise what protocol you're talking about? WiFi by itself doesn't specify audio transport.

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