Search found 10 matches
- Sat Mar 08, 2025 4:43 pm
- Forum: ESP-IDF
- Topic: Want to compile for ESP32S3 not ESP32
- Replies: 10
- Views: 4985
Re: Want to compile for ESP32S3 not ESP32
I use vscode for esp-idf and I quite like it, though I am no expert. I did not know about adding IDF-TARGET to the CMakeLists.txt file as @MicroController pointed out -- I will add that for completeness. But here is my vscode full-build sequence for s3 currently: To completely re-build a project, I ...
- Fri Feb 28, 2025 3:39 am
- Forum: ESP-IDF
- Topic: Using UART0 and UART2 concurrently
- Replies: 1
- Views: 507
Re: Using UART0 and UART2 concurrently
Well, you set all four pins to "not-used" when you used: UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE (I think uart_pin_no_change is ambiguous and should something like uart_pin_not_used or something, but it is what it is) I leave uart-0 system messages on the usb p...
- Wed Feb 26, 2025 5:24 pm
- Forum: ESP-IDF
- Topic: Numeric Filter Synthesis : CutOff Frequency 50Hz (Or 60Hz)
- Replies: 1
- Views: 471
Re: Numeric Filter Synthesis : CutOff Frequency 50Hz (Or 60Hz)
I am also interested in doing this on an esp, and have been looking at the esp-dsp component. I have not done any more than look at esp-dsp so far, but I have been playing with filtering in python as a precursor. You could also use matlab if you pay for it, or the free clone octave, but I prefer pyt...
- Wed Feb 26, 2025 7:19 am
- Forum: ESP-IDF
- Topic: ESP32 - supported types of microsd cards
- Replies: 19
- Views: 6686
Re: ESP32 - supported types of microsd cards
I am using ESP-IDF v5.3.1 at the moment. I use 4GB to 32GB SDHC cards (formatted with FAT32). Generally I can just format them on windows, but some folks swear by the golden formatter from the sd association: https://www.sdcard.org/downloads/formatter/ I have used sd-cards on many custom boards, but...
- Wed Feb 26, 2025 3:37 am
- Forum: ESP-IDF
- Topic: LCD buffering insight ?
- Replies: 1
- Views: 337
Re: LCD buffering insight ?
LCD panels with an RGB interface (if it has HSYNC and VSYNC lines) do not have a frame buffer, and the S3 has to maintain full-screen psram buffers and constantly refresh the entire display. I am no expert in the details so I can't offer any tuning advice. There may be some memory-access contention ...
- Tue Feb 25, 2025 10:13 pm
- Forum: ESP-IDF
- Topic: ESP32 - supported types of microsd cards
- Replies: 19
- Views: 6686
Re: ESP32 - supported types of microsd cards
If the hardware is working with arduino framework, but not idf, then you are correct that it is likely software-related. I don't know if this helps, but here is my sd-card init routine: //------------------------------------------------------------------------------ /** Inits SD Card @param void @re...
- Tue Feb 25, 2025 6:14 am
- Forum: ESP-IDF
- Topic: ESP32 - supported types of microsd cards
- Replies: 19
- Views: 6686
Re: ESP32 - supported types of microsd cards
Sheesh, don't use a breadboard and expect anything over a MHz or so to work well. There is no ground plane so all of those signals are coupling like crazy, lead inductances will be high giving excessive peaks of over/undershoot -- just horrible electromagnetically all ways around. At least get a lit...
- Tue Feb 25, 2025 2:59 am
- Forum: ESP-IDF
- Topic: uart streaming output without interruptions
- Replies: 2
- Views: 415
Re: uart streaming output without interruptions
Thanks for the suggestions. I had also asked this on the freertos forum: https://forums.freertos.org/t/how-to-stream-time-sensitive-uart-data/22620 The summary: having the timer feed a queue and a task reading the queue, only got one out of three posts to the queue and did not work. Perhaps things c...
- Tue Feb 25, 2025 1:34 am
- Forum: ESP-IDF
- Topic: ESP32 - supported types of microsd cards
- Replies: 19
- Views: 6686
Re: ESP32 - supported types of microsd cards
Your scope signals are so bad that I am surprised you got any sd-cards to work. Whenever you see logic signals not at proper levels there is something wrong. It almost looks like mosi and miso are mixing somewhat -- do you have the 3.3V connected to the pullups? I did this once and then you have res...
- Mon Feb 24, 2025 6:12 am
- Forum: ESP-IDF
- Topic: uart streaming output without interruptions
- Replies: 2
- Views: 415
uart streaming output without interruptions
Hi, new here. I am using esp-idf v5.3.1 for an S3 device. My current problem is how to get an esp uart to stream bursts of data with a defined cadence. I need to send 59 bytes at 230400-baud every 4 ms -- the data packet lasts about 2.6ms, with about a 1.4ms inter-packet gap. This device connects to...