How can I improve the resolution of the TV screen? For example 600x480
Hi, it’s at the max res by default. It doesn’t do more than 352x240. It’s possible to drive NTSC higher to 704x480… but, there’s not enough RAM on the generator DAC chip for that.
Thanks for the quick response. If I make a shield using the VS23S040 chip and connect it to the Openmw H7 Plus, will I get more resolution?
The clock speed is already maxed, so, the frame rate will fall back 1/4. And then you need to update our driver to handle the extra RAM.
Here’s the driver, we cannot provide support for this: openmv/src/omv/modules/py_tv.c at master · openmv/openmv
Can I count on 720x480 resolution if I use RT1062 and a camera module with a global shutter?
20 frames per second is quite suitable
You should read the driver and see what the new freqs are produced by changing the resolution and RAM bits and see if it still compiles. The way the math and calculations are done are all in the defines and you will get a compile error if things don’t fit.
Can you tell me, please, an analog of the VS23S040 chip? VS23S040 is difficult to buy
I get it, thanks. But if you have free time, please add the resolution change function to the driver
Hi, I don’t have a solution for you to find the VS23S040, the VS23S010 has one distributor: VS23S010D-L VLSI - IC: SRAM memory | 1MbSRAM; 128kx8bit; 1.5÷3.6V; 40MHz; LQFP48 | TME - Electronic components
Octopart has nothing for the VS23S040.
Is it possible to add a function to reduce the amount of color and thus increase the resolution?
You are free to modify the driver in the firmware to do so. It is currently written to provide the best performance, quality, and speed.