lvgl 9.5
There is a bug in the fatfs code that causes a compile error at line 268 in lv_fs_fatfs.c
do {
res = f_readdir(dir_p, &fno);
if(res != FR_OK) return LV_FS_RES_UNKNOWN;

if(fno.fname[0] == 0) break; /* End of the directory */

if(fno.fattrib & AM_DIR) {
lv_snprintf(fn, fn_len, "/%s ...

This might be of some help: https://github.com/embenix/ESP32-P4-DSI-Support-Hub
I have tried that code using an RPi 5" V@ screen and I'm very happy with the results. I just wish there were some cheaper touch screens in the smaller sizes. I started off with a ESP32-P4 combined with a 7" screen but ...

To use GPIO pins 2-5 on the JC-esp32-p4 board you need to configure the pins as follows:

// Define the GPIO pins to be used (2, 3, 4, 5)
#define OUTPUT_PIN_MASK ((1ULL << 2) | (1ULL << 3) | (1ULL << 4) | (1ULL << 5))

void app_main(void) {
// 1. Configure GPIOs 2-5
gpio_config_t io_conf ...

According to Guition documentation the GPIO pins exposed on the above board include GPIO01 to GPIO05 as IO. But I can only use GPIO01 as Output. The other pins do not respond to gpio_set_level() statements. I found a PDF detailing the specs of the P4 revision v1.3 chipset; Table 2-1 shows the pins ...

I don't know exactly what is going on, but it looks like too big to fit in the available memory. Here's my sdkconfig.defaults:

CONFIG_IDF_TARGET="esp32p4"
CONFIG_ESPTOOLPY_FLASHMODE_QIO=y
CONFIG_ESPTOOLPY_FLASHSIZE_16MB=y
CONFIG_ESP_SYSTEM_CHECK_INT_LEVEL_5=n //some bug in the 6.0-RC1 SDK

As of ...

I don't know exactly what is going on, but it looks like too big to fit in the available memory. Here's my sdkconfig.defaults:

CONFIG_IDF_TARGET="esp32p4"
CONFIG_ESPTOOLPY_FLASHMODE_QIO=y
CONFIG_ESPTOOLPY_FLASHSIZE_16MB=y
CONFIG_ESP_SYSTEM_CHECK_INT_LEVEL_5=n //some bug in the 6.0-RC1 SDK

As of ...

You need to go into menuconfig as change it to these settings. Then you will fine.

Screenshot 2026-03-21 230856.png


As I said in the original post I did try that but then The project will compile but not build; so I don't even get the chance to try to flash it. There seems to be some sort of ...

Here you go:
ESP32P4_SELECTS_REV_LESS_V3(=y) "Select ESP32-P4 revisions <3.0 (No >=3.x Support)"

If I select that option the project will compile but fail to build .
-esp-elf/14.2.0/../../../../riscv32-esp-elf/bin/ld.exe: error: --enable-non-contiguous-regions discards section `.sdata.s_time ...

I have a few ESP32-P$ boards running a number of projects I built. Some of them need to be updated. But with the default hardware configuration my projects will compile OK but I can't flash the boards because the chip revision is not in the range v3.1 - v3.99.
If I change the Chip revision setting ...

I did not reply because a resource locking issue is from Windows, which I do not use.
If you are getting a different error, post it. I can compile for the older P4 without issue. You can try arduino-esp32 , which has an option for compiling to the earlier rev.


I can compile and build OK - I ...