how generate clock and data 32khz to 10mhz using esp32
-
- Posts: 11
- Joined: Wed Oct 25, 2023 10:37 pm
how generate clock and data 32khz to 10mhz using esp32
Hello, is it possible to generate clock and date between 32khz and 10mhz.
I tried use, but the maximum I could reach was 10khz
#define DT 0.0001
esp_timer_start_periodic(timer1Handle, (int)(1000 * 1000 * DT));
I dont want use LEDC for generate this clock.
I tried use, but the maximum I could reach was 10khz
#define DT 0.0001
esp_timer_start_periodic(timer1Handle, (int)(1000 * 1000 * DT));
I dont want use LEDC for generate this clock.
Re: how generate clock and data 32khz to 10mhz using esp32
Ensure that your code is optimized for performance to achieve the highest clock frequency possible. This includes minimizing interrupt latency, reducing unnecessary computations, and optimizing loop structures.
-
- Posts: 1725
- Joined: Mon Oct 17, 2022 7:38 pm
- Location: Europe, Germany
Re: how generate clock and data 32khz to 10mhz using esp32
Not in software.ligteltelecom wrote: ↑Sun May 12, 2024 1:08 pmHello, is it possible to generate clock and date between 32khz and 10mhz.
Look into using a hardware periperal, like SPI or LCD, maybe RMT.
-
- Posts: 11
- Joined: Wed Oct 25, 2023 10:37 pm
Re: how generate clock and data 32khz to 10mhz using esp32
Hi guys. I'm not using a loop inside the callback. but I need to generate frequency between 32khz - 25mhz. within this callback I will send the bits I need
-
- Posts: 9757
- Joined: Thu Nov 26, 2015 4:08 am
Re: how generate clock and data 32khz to 10mhz using esp32
Bitbanging on an ESP32 is generally not a good idea and it's unlikely you'll be able to do it at 25MHz. Are you absolutely 200% sure there's not a peripheral in the ESP32 (e.g. I2S, SPI, RMT, ...) that can be convinced to generate that protocol for you?
-
- Posts: 11
- Joined: Wed Oct 25, 2023 10:37 pm
Re: how generate clock and data 32khz to 10mhz using esp32
What is the maximum frequency I can achieve using this function?
esp_timer_start_periodic()
esp_timer_start_periodic()
-
- Posts: 11
- Joined: Wed Oct 25, 2023 10:37 pm
Re: how generate clock and data 32khz to 10mhz using esp32
Hello everyone, can I use i2s with callback? to send the data within this callback?ESP_Sprite wrote: ↑Mon May 13, 2024 1:52 amBitbanging on an ESP32 is generally not a good idea and it's unlikely you'll be able to do it at 25MHz. Are you absolutely 200% sure there's not a peripheral in the ESP32 (e.g. I2S, SPI, RMT, ...) that can be convinced to generate that protocol for you?
-
- Posts: 9757
- Joined: Thu Nov 26, 2015 4:08 am
Re: how generate clock and data 32khz to 10mhz using esp32
I mean, that depends on the callback?ligteltelecom wrote: ↑Mon May 13, 2024 7:58 pmHello everyone, can I use i2s with callback? to send the data within this callback?
Can you step back a bit and give us an overview of what you're trying, rather than posting one-off questions to the forum that we can't really answer without context? Explain a bit what your device needs to do, tell us what sensor you're interfacing with, what SDK you're using, what other constraints (latency?) you have etc. That allows us to answer your questions a lot more precise.
-
- Posts: 11
- Joined: Wed Oct 25, 2023 10:37 pm
Re: how generate clock and data 32khz to 10mhz using esp32
ESP_Sprite wrote: ↑Tue May 14, 2024 3:00 amI mean, that depends on the callback?ligteltelecom wrote: ↑Mon May 13, 2024 7:58 pmHello everyone, can I use i2s with callback? to send the data within this callback?
Can you step back a bit and give us an overview of what you're trying, rather than posting one-off questions to the forum that we can't really answer without context? Explain a bit what your device needs to do, tell us what sensor you're interfacing with, what SDK you're using, what other constraints (latency?) you have etc. That allows us to answer your questions a lot more precise.
Hello, I need to communicate with some ICs that use the SPMI protocol. This protocol works with frequencies 32khz to 25mhz.
I've been taking a look at the i2s protocol and I believe I can do something with it.
-
- Posts: 9757
- Joined: Thu Nov 26, 2015 4:08 am
Re: how generate clock and data 32khz to 10mhz using esp32
That protocol looks quite like SPI, to be honest; you may be able to generate your data using that peripheral. Only issue is that on later chips (S3, C3 etc) we don't support non-multiple-of-8 bit transactions, but if SPMI is OK with padding to a multiple of 8-bit, you may be able to get that to work.
Who is online
Users browsing this forum: No registered users and 353 guests