Search found 11 matches

by mikeselectricstuff
Tue Jul 21, 2026 11:12 am
Forum: General Discussion
Topic: ESP32-P4 chip availability ?
Replies: 4
Views: 161

Re: ESP32-P4 chip availability ?

But when will they actually be available?
by mikeselectricstuff
Wed Jul 15, 2026 11:45 am
Forum: General Discussion
Topic: ESP32-P4 chip availability ?
Replies: 4
Views: 161

Re: ESP32-P4 chip availability ?

I assume the X means the 3.x version ?

However there doesn't appear to be availability anywhere. I need to know when I'll be able to order via JLCPCB or Digikey.
by mikeselectricstuff
Wed Jul 15, 2026 11:08 am
Forum: General Discussion
Topic: ESP32-P4 chip availability ?
Replies: 4
Views: 161

ESP32-P4 chip availability ?

Having previously ordered ESP32-P4 chips on PCBAs via JLCPCB (this was v1.3), I just noticed that the ESP32-P4 (P4NRW32 ) is now showing on LCSC as "not available now, discontinued", and there seems to be no stock at Digikey, Mouser etc.

Is this perhaps an issue with teh transition to v3.x silicon ...
by mikeselectricstuff
Mon Jul 06, 2026 6:10 pm
Forum: Hardware
Topic: First ESP32-P4 board bringup - power problems
Replies: 2
Views: 91

Re: First ESP32-P4 board bringup - power problems

Yes, that was it !
I didn't realise that only the flash LDO is enabled initially, hence confusion over the other voltages.
by mikeselectricstuff
Mon Jul 06, 2026 4:41 pm
Forum: Hardware
Topic: First ESP32-P4 board bringup - power problems
Replies: 2
Views: 91

Re: First ESP32-P4 board bringup - power problems

OK think I may have figured it out - I have V01..4 order reversed, so may have smoked the PSRAM - seeing if I can track-hack a new PCB to confirm.....
by mikeselectricstuff
Mon Jul 06, 2026 4:06 pm
Forum: Hardware
Topic: First ESP32-P4 board bringup - power problems
Replies: 2
Views: 91

First ESP32-P4 board bringup - power problems

Hi - I'm trying to get my first ESP32-P4 board running. It is basically a copy of the Waveshare WIFI6-TOUCH-LCD-XC board (Schematic : https://files.waveshare.com/wiki/ESP32-P4-WIFI6-Touch-LCD-XC/ESP32-P4-WIFI6-Touch-LCD-XC-Schematic.pdf] ), with a few parts omitted (camera, audio, USB-Serial)

The ...
by mikeselectricstuff
Sat Jun 27, 2026 9:05 am
Forum: ESP-IDF
Topic: ESP32-P4 MIPI double-buffering - can't work out how to swap buffers
Replies: 2
Views: 73

Re: ESP32-P4 MIPI double-buffering - can't work out how to swap buffers

Thanks - I saw a reference to Draw_Bitmap, but thought this was in the context of flushing a screen buffer to a SPI type display with its own memory.
Would be helpful if the DSI display documentation had mentioned this, as it's far from obvious!
by mikeselectricstuff
Fri Jun 26, 2026 6:43 pm
Forum: ESP-IDF
Topic: Struggling to figure out how to include IDF components
Replies: 2
Views: 102

Re: Struggling to figure out how to include IDF components

Thanks - I eventually managed to get it working by starting with the LCD demo, adding sdcard support, adding a kconfig file to add the sdcard-specific config items.
by mikeselectricstuff
Fri Jun 26, 2026 6:40 pm
Forum: IDEs for ESP-IDF
Topic: Vscode : compile warnings disappear from terminal window
Replies: 1
Views: 53

Vscode : compile warnings disappear from terminal window

New to VSCode, slowly getting there but can't figure this out...
During build, you see all the compiler warnings etc. scrolling up the terminal window, but when it completes successfully, the window gets cleared, and just shows the memory usage summary.

How do I either get back to the warnings ...
by mikeselectricstuff
Fri Jun 26, 2026 6:35 pm
Forum: ESP-IDF
Topic: ESP32-P4 MIPI double-buffering - can't work out how to swap buffers
Replies: 2
Views: 73

ESP32-P4 MIPI double-buffering - can't work out how to swap buffers

I'm working on a simple project which is basically loading and displaying images from an SD card to a MIPI LCD.
Not using LVGL, just throwing raw image data around.
Using IDF V5.5.4 ( as that was the example I started with used), Waveshare 3.4" round LCD board, with their BSP, configuration set ...

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