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  • Author Author: Digimorf
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ATCDC: Digimorf, Day 7, The project SEGA SG-1000 Emulator on PSoC62S4 Pioneer kit!

Digimorf
ATCDC: Digimorf, Day 7, The project SEGA SG-1000 Emulator on PSoC62S4 Pioneer kit!

A week passed since I started my adventure with the PSoC6, and I can say it's a love & hate Sweat smile

As I said I will implement a VGA signal generator, and I have selected ports and pins to use. The "love" is that this chip offers a wide range of possibilities for configuration. The "hate" is that I'm not used to this degree of freedom and there are several new concepts to digest. Sweat smile

I have to choose the approach to use for this project. Here is where the "fun" part starts: HAL, PDL, or...  The point is that I want to use as many I can standard tools offered by ModusToolbox, as well as standard libraries. This project must be easily used by everyone. Keeping that in mind I would like to use the inline comments as a guide, and the configurators as tools to lay out the code. All in all, this is the goal of Infineon, I presume.

Let's go back to the project. The first step is to create a PWM signal which period is the horizontal period of a video scanline, and the "negative" duty cycle is the horizontal sync. 

VGA signal

Then, an interrupt should be called each PWM period (scanline) so that we can drive the vertical sync by counting the lines. This is the most popular way to implement the VGA synchronization signal.

The Device Configurator is very useful to set up the tcpwm stuff, I am still confused about the events/interrupts, but it's a question of learning the PSoC6 way.Blush

  • in reply to dougw

    Yes, I would have used now for the development of the VGA video driver. Since I am in the middle of the learning curve for Timers/Counters & Co. So, a real time schematic view of the system I'm working on would have been very helpful.

    In fact, things here are getting "complicated". I knew that the video generation without the specific hardware would have been challenging . But, if an Arduino Uno can generate a VGA standard video frame, even if a poor resolution, this board could do it also!

    I will explain what's going on in the next post.

  • in reply to Digimorf

    PSoC Creator definitely was/is spectacular. I haven't tried the newer tools yet because I still use the older modules with PSoC Creator.

  • What a pity, I just have been told that PSoC Creator doesn't support the PSoC62S4. I had a quick tour on it and the schematic editor is a great tool for laying out an application. Also it is a nice way to build a diagram for the documentation.