Short answer is no. But yes.
(1) No. Since 74HC595 is not an SPI device, as @permal described, you can't use 74HC595 as SPI device.
(2) But yes. You can use ESP32's SPI as bit stream output device for 74HC595 as @WiFive wrote.

If you choose (2), I recommend you to refer "7. SPI" in the ESP32 ...

So far, I'm trying to use my code with "real" app. It's kinda work but way too slow (30..40fps) for 240MHz x 2 chip
Perhaps, reading from flash and/or SPI DMA drag the system.

Hi, HermannSW
Thanks for the valuable info. Since you have a lot of experience and ESP32 has great capability, I'm sure that you can implement far far better than me. I hope community will see your superb achievement.

Hi, I've revamped my code at https://github.com/t-mat/esp32-vga-experiment . I've refactored almost all codes, but major changes are
(1) Remove LED_PWMs
(2) Use two RMT channels instead of LED_PWM.
(3) Add proper V-Sync, H-Sync interrupt. (H-Sync interrput is not exposured though)
(4) Change bitmap ...

I think I've found how I can reset internal counter.
It seems when RMT channel reaches the end of TX state, it resets its internal counter automatically. And since I want to reset the channel which uses tx_conti_mode=1, I must set tx_conti_mode=0 firstly.
I can reset and see stable behaviour of RMT ...

Hey, videos and sounds are working fine here
Happy Holidays!

P.S. Scrollers and Trackers forever!!

Hi, I'm trying to set precise delay between two RMT channels which are set as continuous mode (RMT_CHnCONF1_REG.RMT_TX_CONTI_MODE_CHn = 1).
I supposed that I can reset RMT channels' internal timers/counters by the following code. But I failed to reset them. So far, this code can change delay between ...

Hi, I've put my code on GitHub.
https://github.com/t-mat/esp32-vga-experiment

Since there's absolutely copyright/trademark issue, I've removed the Espressif logo picture from the code. Demo code just shows random pixels instead of the logo.

@ESP_Sprite, I think I've fixed issue 1 (timing between SPI DMA and LEDC timer is unstable). But solution seems strange.
When I set 0 to entire bit of spi_dev_t::mosi_dlen.usr_mosi_dbitlen ( SPI_MOSI_DLEN_REG.SPI_USR_MOSI_BITLEN) , it works fine. At least 5 hours, no delay happened. But when I set ...

Hi, I attached source code of my VGA experiment. Setup procedure is

(1) Check GpioPins in main/vga_experiment.cpp . You should define and connect 3 GPIO pins for VGA: V-Sync, H-Sync, Video (single pin).
(2) Run make menuconfig for setup.
(3) Run make -j flash monitor for build & run.

Hope someone ...