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donny681 / ESP32_CAMERA_QR

Apache License 2.0
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Sometimes I get a black square #9

Closed raphaelbs closed 5 years ago

raphaelbs commented 5 years ago

Hello,

Just got the Ai Thinker ESP32-CAM.

What I know

image

What I tried

By default PSRAM was disabled so I enabled by adding to sdkconfig:

CONFIG_SPIRAM_SUPPORT=y

#
# SPI RAM config
#
CONFIG_SPIRAM_BOOT_INIT=y
CONFIG_SPIRAM_IGNORE_NOTFOUND=y
CONFIG_SPIRAM_USE_MEMMAP=
CONFIG_SPIRAM_USE_CAPS_ALLOC=
CONFIG_SPIRAM_USE_MALLOC=y
CONFIG_SPIRAM_TYPE_ESPPSRAM32=y
CONFIG_SPIRAM_SIZE=4194304
CONFIG_SPIRAM_SPEED_40M=y
CONFIG_SPIRAM_MEMTEST=y
CONFIG_SPIRAM_CACHE_WORKAROUND=y
CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL=16384
CONFIG_WIFI_LWIP_ALLOCATION_FROM_SPIRAM_FIRST=y
CONFIG_SPIRAM_MALLOC_RESERVE_INTERNAL=32768
CONFIG_SPIRAM_ALLOW_STACK_EXTERNAL_MEMORY=

In the boot screen, I could see that SPI SRAM was active:

image

With VGA resolution and PSRAM enabled, I verified that DMA buffer was allocated correctly:

image

The HTTP server seems fine, even though it responds a square:

image

9crk commented 5 years ago

me too. this project was shut down by Ai-Thinker corp. it's not a good project.

9crk commented 5 years ago

you can't find this module sale on the Ai-thinker website or taobao shop now.

raphaelbs commented 5 years ago

They are still available on Aliexpress though. I'm still working in this module and will open a repo just for it sometime soon.

bokse001 commented 5 years ago

I have the same problem with a black screen but also with a distorted picture. @raphaelbs I am very interested in what you produce. Seems there are some more implementations out there, not specific for the ESP32-CAM but a different board that use the same basis implementation.

bokse001 commented 5 years ago

I found out that, when you do a completely new build, it works without distortions... But why? Is there a driver mismatch when you compile with a different resolution and only the app gets rebuild? Also I put in the fix for the fb size and PSRAM.

raphaelbs commented 5 years ago

@bokse001 just openned the repo. Please check it out and feel free to contribute or discuss about it.

donny681 commented 5 years ago

@raphaelbs @9crk I will fix the promblem soon.Recently I'm so busy.Maybe you can use the older sdk.