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
USBHost/USBHALHost_F401RE.h
- Committer:
- beaglescout007
- Date:
- 2016-04-03
- Revision:
- 0:3dac1f1bc9e0
File content as of revision 0:3dac1f1bc9e0:
#pragma once #include "mbed.h" #include "USBHostTypes.h" #include "USBEndpoint.h" class HC { static const uint8_t DIR_IN = 1; static const uint8_t DIR_OUT = 0; public: HC(); HC(int ch); ~HC(); HAL_StatusTypeDef Init(uint8_t epnum, uint8_t dev_address, uint8_t speed, uint8_t ep_type, uint16_t mps); HAL_StatusTypeDef SubmitRequest(uint8_t* pbuff, uint16_t length, bool setup = false); HCD_URBStateTypeDef GetURBState(); HCD_HCStateTypeDef GetState(); uint32_t GetXferCount(); void SetToggle(uint8_t toggle); static uint8_t slot; private: int _ch; uint8_t _ep_addr; uint8_t _ep_type; }; class USBHALHost { public: uint8_t LastStatus; uint8_t prev_LastStatus; protected: USBHALHost(); void init(); virtual bool addDevice(USBDeviceConnected* parent, int port, bool lowSpeed) = 0; int token_setup(USBEndpoint* ep, SETUP_PACKET* setup, uint16_t wLength = 0); int token_iso_in(USBEndpoint* ep, uint8_t* data, int size); int multi_token_in(USBEndpoint* ep, uint8_t* data = NULL, size_t total = 0, bool block = true); int multi_token_out(USBEndpoint* ep, const uint8_t* data = NULL, size_t total = 0); void multi_token_inNB(USBEndpoint* ep, uint8_t* data, int size); USB_TYPE multi_token_inNB_result(USBEndpoint* ep); void setToggle(USBEndpoint* ep, uint8_t toggle); private: int token_in(USBEndpoint* ep, uint8_t* data = NULL, int size = 0, int retryLimit = 10); int token_out(USBEndpoint* ep, const uint8_t* data = NULL, int size = 0, int retryLimit = 10); int token_ctl_in(USBEndpoint* ep, uint8_t* data, int size, int retryLimit); int token_int_in(USBEndpoint* ep, uint8_t* data, int size); int token_blk_in(USBEndpoint* ep, uint8_t* data, int size, int retryLimit); int token_ctl_out(USBEndpoint* ep, const uint8_t* data, int size, int retryLimit); int token_int_out(USBEndpoint* ep, const uint8_t* data, int size); int token_blk_out(USBEndpoint* ep, const uint8_t* data, int size, int retryLimit); bool wait_attach(); static USBHALHost * instHost; };