For the first time, I burned the official RetroPie ( https://retropie.org.uk/ ) image system with Raspberry Pi, intending to use it to play emulator games.
How to load the game and how to run it, there are many tutorials on the Internet, including the settings of various handles and buttons.
What I use here is the USB version of the classic red and white machine controller, which can be directly recognized by plugging in the Raspberry Pi without a driver.
But after setting it up, when I run the game, I found that the FC game cannot use the burst button of the handle, which is a pity. After searching the Internet for a long time, I couldn't find the answer. I groped for it myself and shared it with everyone.
First, in the MAIN MENU, set the button in Configure Input.
After configuring all the handle buttons, including the X, Y keys are assigned to the burst button.
In the last HOTKEY ENABLE, a hotkey button must be set, as shown in the figure below.
After setting up, just enter a game.
After entering the game, use the HOTKEY+I key of this setting, note that the default is the "I" key of the keyboard, and call out a menu, as shown in the figure below.
In Options, there is a Turbo Enable, which needs to be turned on for the Burst button to take effect.
On the bottom line of the menu, there are two Show Advanced System Options and Show Advanced Sound Options. If these two options are not turned on, some setting options may not appear, so they must be turned on in advance.
It seems that it has not taken effect immediately after opening it, and it must be restarted to have an effect. You need to pay attention here.
In addition, explain the role of Sprite Limit and overclocking Overclock. This is very practical. In some FC games, such as Contra Power (commonly known as the 6th generation), in a crowded scene, part of the screen flicker is caused by the limitation of Sprite, and it becomes very slow and stuttering. Overclocking is needed to solve this problem.
If these two items are turned on, it will solve the problem of freezing in similar games and flickering of some content on the screen. Better than the real one. These games will flicker or freeze on the real machine. Remember that whether it is Rockman or Salamander, some big scenes will also experience lag.
This setup is very smooth and smooth.