I have ported my old project “pNesX” game console emulator to the nucleo.
Dependencies: SDFileSystem mbed
Intro
I have ported my old project “pNesX” to the STM32 Nucleo. The pNesX is a NES emulator for the PlayStation that I have created 16 years ago!
Emulation part was almost without change, the sound part was newly added.
Parts
STM32 Nucleo F446RE |
QVGA 2.2 TFT SPI (with the SD card slot) |
Audio jack(TS or TRS) |
USB Connector |
Register 100k, 10k, 4.7k, 100 |
Capacitor 0.01uF, 2.2uF |
Breadboard |
Wires |
Computer Speakers |
USB GamePad |
Wiring diagram
TFT J2 | Nucleo |
---|---|
VCC | 3V3 |
GND | GND |
CS | PB_5(D4) |
Reset | PA_10(D2) Pull Up(100k) |
D/C | PA_8(D7) |
MOSI | PA_7(D11) |
SCK | PA_5(D13) |
LED | LED-100ohm-3V3 |
MISO | PA_6(D12) |
TFT J4 | Nucleo |
---|---|
SD_CS | PA_9 |
SD_MOSI | PB_15 |
SD_MISO | PB_14 |
SD_SCK | PB_13 |
Audio | Nucleo |
---|---|
TIP | PA_4(A2) |
USB con. | Nucleo |
---|---|
GND | GND |
+ | PA_12 |
- | PA_11 |
5V | 5V |
Limitations
- Since the rest of the RAM is about 50kbyte, maximum capacity of the game ROM is about 50kbyte.
- The length of the file name up to 32 characters.
- The number of files in the folder is up to 100.
Used Library
- SDFileSystem by Neil Thiessen
- F401RE-USBHost by Norimasa Okamoto
- USBHostGamepad by Yuuichi Akagawa
Diff: pNesX_System.h
- Revision:
- 0:3dac1f1bc9e0
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/pNesX_System.h Sun Apr 03 07:45:29 2016 +0000 @@ -0,0 +1,54 @@ +/*===================================================================*/ +/* */ +/* pNesX_System.h : The function which depends on a system */ +/* */ +/* 1999/11/03 Racoon New preparation */ +/* */ +/*===================================================================*/ + +#ifndef PNESX_SYSTEM_H_INCLUDED +#define PNESX_SYSTEM_H_INCLUDED + +/*-------------------------------------------------------------------*/ +/* Include files */ +/*-------------------------------------------------------------------*/ + +#include "pNesX_Types.h" + +/*-------------------------------------------------------------------*/ +/* Palette data */ +/*-------------------------------------------------------------------*/ +extern const WORD NesPalette[]; + +/*-------------------------------------------------------------------*/ +/* Function prototypes */ +/*-------------------------------------------------------------------*/ + +/* Menu screen */ +int pNesX_Menu(); + +/* Read ROM image file */ +int pNesX_ReadRom( const char *pszFileName ); + +/* Release a memory for ROM */ +void pNesX_ReleaseRom(); + +/* Transfer the contents of work frame on the screen */ +void pNesX_LoadFrame(); +void pNesX_TransmitLinedata(); + +/* Get a joypad state */ +void pNesX_PadState( DWORD *pdwPad1, DWORD *pdwPad2, DWORD *pdwSystem ); + +/* memcpy */ +void *pNesX_MemoryCopy( void *dest, const void *src, int count ); + +/* memset */ +void *pNesX_MemorySet( void *dest, int c, int count ); + +/* Print debug message */ +void pNesX_DebugPrint( char *pszMsg ); + +#endif /* !PNESX_SYSTEM_H_INCLUDED */ + +