Magic Revised Tetris Palm
这是一款魔改版的俄罗斯方块掌机,移除了原主板,换上了自制主板。自制主板选用高性能的 stm32H7 作为主控,通过电阻分压网络驱动液晶屏,还添加了 TAS2563 音频功放芯片来驱动扬声器,实现了声色俱全的效果,支持编写自制游戏。
This is a modified version of the Tetris handheld game console. The original motherboard has been removed and replaced with a self - made one. The self - made motherboard uses the high - performance STM32H7 as the main control unit. It drives the liquid crystal display through a resistor voltage - dividing network. Additionally, a TAS2563 audio power amplifier chip is added to drive the speaker, achieving a full - fledged audio - visual effect. It also supports the development of self - made games.
图纸有几处错误:
- 音频功放的部分使用SAI接口,但若使用H723芯片,则该接口对应的SAI模块不支持半传输DMA中断,因此使用跳线连接到I2S1接口;
- 原本预留了一个ADC通道,用于连接模拟麦克风,但若使用H723芯片,对应通道不支持半传输中断;
- 主板上集成一颗MPU6050传感器,但电路绘制错误,芯片焊上不可用;
- 没有兼容原机的电池座