woodstock . / Mbed 2 deprecated Nucleo_Ex06_EMU

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

/media/uploads/beaglescout007/nucleo_ex06_emu.png

TFT J2Nucleo
VCC3V3
GNDGND
CSPB_5(D4)
ResetPA_10(D2) Pull Up(100k)
D/CPA_8(D7)
MOSIPA_7(D11)
SCKPA_5(D13)
LEDLED-100ohm-3V3
MISOPA_6(D12)
TFT J4Nucleo
SD_CSPA_9
SD_MOSIPB_15
SD_MISOPB_14
SD_SCKPB_13
AudioNucleo
TIPPA_4(A2)
USB con.Nucleo
GNDGND
+PA_12
-PA_11
5V5V

https://youtu.be/jL24IjT6LnI

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

pNesX_Mapper.h

Committer:
beaglescout007
Date:
2016-04-03
Revision:
0:3dac1f1bc9e0

File content as of revision 0:3dac1f1bc9e0:

/*===================================================================*/
/*                                                                   */
/*  pNesX_Mapper.h : pNesX Mapper Function                           */
/*                                                                   */
/*  1999/11/03  Racoon  New preparation                              */
/*                                                                   */
/*===================================================================*/

#ifndef PNESX_MAPPER_H_INCLUDED
#define PNESX_MAPPER_H_INCLUDED

/*-------------------------------------------------------------------*/
/*  Include files                                                    */
/*-------------------------------------------------------------------*/

#include "pNesX_Types.h"

/*-------------------------------------------------------------------*/
/*  Macros                                                           */
/*-------------------------------------------------------------------*/

/* The address of 8Kbytes unit of the ROM */
#define ROMPAGE(a)     &ROM[ (a) * 0x2000 ]
/* From behind the ROM, the address of 8kbytes unit */
#define ROMLASTPAGE(a) &ROM[ NesHeader.byRomSize * 0x4000 - ( (a) + 1 ) * 0x2000 ]

/* The address of 1Kbytes unit of the VROM */
#define VROMPAGE(a)    &VROM[ (a) * 0x400 ]

/*-------------------------------------------------------------------*/
/*  Table of Mapper initialize function                              */
/*-------------------------------------------------------------------*/

struct MapperTable_tag
{
  int nMapperNo;
  void (*pMapperInit)();
};

extern struct MapperTable_tag MapperTable[];

/*-------------------------------------------------------------------*/
/*  Function prototypes                                              */
/*-------------------------------------------------------------------*/

void Map0_Init();
void Map0_Write( WORD wAddr, BYTE byData );
void Map0_VSync();
void Map0_HSync();

void Map1_Init();
void Map1_Write( WORD wAddr, BYTE byData );

void Map2_Init();
void Map2_Write( WORD wAddr, BYTE byData );

void Map3_Init();
void Map3_Write( WORD wAddr, BYTE byData );

void Map4_Init();
void Map4_Write( WORD wAddr, BYTE byData );
void Map4_VSync();
void Map4_HSync();

#endif /* !PNESX_MAPPER_H_INCLUDED */