Search found 290 matches
- Mon Mar 25, 2024 7:17 am
- Forum: ESP-IDF
- Topic: How to manage multiple rgb lcd frame buffers?
- Replies: 3
- Views: 2158
Re: How to manage multiple rgb lcd frame buffers?
there's no way to know which frame buffer is safe to draw to The order of the frame buffers to be flushed to the display is controlled by the user. Let's say you ask the driver to create 3 frame buffer and get them all in esp_lcd_rgb_panel_get_frame_buffer (fb0, fb1, fb2). By default, the LCD contr...
- Wed Mar 06, 2024 2:50 am
- Forum: Hardware
- Topic: MCPWM Update MCPWM_TIMERx_PRESCALE and MCPWM_TIMERx_PERIOD
- Replies: 2
- Views: 1589
Re: MCPWM Update MCPWM_TIMERx_PRESCALE and MCPWM_TIMERx_PERIOD
I would like to know when a write to MCPWM_TIMERx_PRESCALE get applied to the actual scaler New timer pre-scale value will take effect when the timer goes from STOP to START. new MCPWM_TIMER0_PERIOD < MCPWM_TIMER0_VALUE < current MCPWM_TIMER0_PERIOD Does it immediately jump to TEZ? or having alread...
- Thu Feb 29, 2024 1:50 pm
- Forum: Hardware
- Topic: RMT RX of a continuous bitstream
- Replies: 1
- Views: 1454
Re: RMT RX of a continuous bitstream
Hi, recently we added a feature called "partial receive", which should fit your requirement. https://github.com/espressif/esp-idf/commit/106baac0bc14c17af055b2cdb9b2d7a2125d7384 (the feature only exists on the master branch) The idea is, to register a callback "on_recv_done", you can get notificatio...
- Fri Oct 27, 2023 2:38 am
- Forum: ESP-IDF
- Topic: mcpwm_set_frequency() equivalent for esp-idf v5.0
- Replies: 9
- Views: 7777
Re: mcpwm_set_frequency() equivalent for esp-idf v5.0
New API available on the master branch now: https://github.com/espressif/esp-idf/co ... 2bfd341a70
We will backport that API to release/v5.0 and release/v5.1 as well.
We will backport that API to release/v5.0 and release/v5.1 as well.
- Wed Oct 11, 2023 8:10 am
- Forum: ESP-IDF
- Topic: mcpwm_set_frequency() equivalent for esp-idf v5.0
- Replies: 9
- Views: 7777
Re: mcpwm_set_frequency() equivalent for esp-idf v5.0
Thanks for reporting. Yes, we will provide an API to change the period dynamically.
- Mon Aug 14, 2023 4:15 am
- Forum: General Discussion
- Topic: Does anyone have a good solution for measuring a continues PWM signal?
- Replies: 3
- Views: 3714
Re: Does anyone have a good solution for measuring a continues PWM signal?
rmt_rx_memory_reset(RMT_CHANNEL_0) will reset the whole RMT FIFO memory. It should only be called for once in the initialization stage. Not sure what esp chips you're working with, ESP32S2? ESP32C3? But please note, ESP32-S2's RMT RX channel doesn't support ping-pong receive. The maximum RMT symbols...
- Thu Jun 15, 2023 6:09 am
- Forum: ESP-IDF
- Topic: MCPWM maximum timer frequency
- Replies: 4
- Views: 3081
Re: MCPWM maximum timer frequency
We have the example for DShot protocol https://github.com/espressif/esp-idf/tr ... /dshot_esc
- Thu Feb 23, 2023 5:37 am
- Forum: ESP-IDF 中文讨论版
- Topic: esp-idf 5.0 如何在运行时调节MCPWM的定时器频率
- Replies: 1
- Views: 3530
Re: esp-idf 5.0 如何在运行时调节MCPWM的定时器频率
能描述一下你的应用为什么需要动态更改频率呢?
- Thu Feb 09, 2023 2:01 am
- Forum: ESP-IDF
- Topic: ESP32-S3 LCD
- Replies: 1
- Views: 2326
Re: ESP32-S3 LCD
Thanks for reporting this. We will fix it ASAP!
Edit: Fixed for the master branch: https://github.com/espressif/esp-idf/co ... 9060d2b68e
Will backport the fix to 5.0 release soon.
Edit: Fixed for the master branch: https://github.com/espressif/esp-idf/co ... 9060d2b68e
Will backport the fix to 5.0 release soon.
- Fri Dec 30, 2022 8:31 am
- Forum: ESP-IDF
- Topic: Is PPPoS missing from 5.0
- Replies: 1
- Views: 2516
Re: Is PPPoS missing from 5.0
Yes, moved to the component registry now, see the migration guide here: https://docs.espressif.com/projects/esp ... nents.html