NES emulator on an ESP32
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- Posts: 9708
- Joined: Thu Nov 26, 2015 4:08 am
NES emulator on an ESP32
Here's a new thing: a NES emulator for the ESP32. It's a proof of concept, does not have sound and the display driver is kinda hackish leading to a frame rate that is slightly sub-par, but it actually is playable. Video demonstrating it and some of the reasoning around it is here: https://youtu.be/ympmRydFMmE
The source code of the emu is here: https://github.com/espressif/esp32-nesemu Keep in mind that it is more of a proof-of-concept than a product, and while push requests generally will be honoured, we won't be doing much more work on it.
The source code of the emu is here: https://github.com/espressif/esp32-nesemu Keep in mind that it is more of a proof-of-concept than a product, and while push requests generally will be honoured, we won't be doing much more work on it.
Re: NES emulator on an ESP32
Nice project. No homemade cap touch control pad?
Look forward to SD card drivers. Will you post schematic of devkitJ?
Look forward to SD card drivers. Will you post schematic of devkitJ?
Re: NES emulator on an ESP32
+1WiFive wrote: Look forward to SD card drivers. Will you post schematic of devkitJ?
well done, nice helpfull founds [Move LCD driver to 2nd CPU] in your code how you have done it.
thank you for share!
best wishes
rudi
-------------------------------------
love it, change it or leave it.
-------------------------------------
問候飛出去的朋友遍全球魯迪
love it, change it or leave it.
-------------------------------------
問候飛出去的朋友遍全球魯迪
Re: NES emulator on an ESP32
hi
cause tested with ESP32 WROVER KIT V2 ( black )
found out, that we must change a small thing.
https://github.com/espressif/esp32-nese ... _lcd.c#L53
txs for your great work Jeroen!
now i need a PS1/PS2 Controller
i usually do not play so sorry for this i have not PS1/PS2 controller here
see a sequenze on twitter
best wishes
rudi
cause tested with ESP32 WROVER KIT V2 ( black )
found out, that we must change a small thing.
https://github.com/espressif/esp32-nese ... _lcd.c#L53
Code: Select all
/*orig WROVER KIT 1 ( red ) Backlight active high! */
// #define LCD_BKG_ON() GPIO.out_w1ts = (1 << PIN_NUM_BCKL) // Backlight ON
// #define LCD_BKG_OFF() GPIO.out_w1tc = (1 << PIN_NUM_BCKL) //Backlight OFF
/*rudi mod 06 jan 2017 on WROVER KIT V2 ( black ) Backlight active low! */
#define LCD_BKG_OFF() GPIO.out_w1ts = (1 << PIN_NUM_BCKL) // Backlight OFF
#define LCD_BKG_ON() GPIO.out_w1tc = (1 << PIN_NUM_BCKL) //Backlight ON
now i need a PS1/PS2 Controller
i usually do not play so sorry for this i have not PS1/PS2 controller here
see a sequenze on twitter
best wishes
rudi
-------------------------------------
love it, change it or leave it.
-------------------------------------
問候飛出去的朋友遍全球魯迪
love it, change it or leave it.
-------------------------------------
問候飛出去的朋友遍全球魯迪
Re: NES emulator on an ESP32
hi
Add SPI Master driver was done before few days,
and with this few changes
if you get a compile error cause VSPICLK_OUT_MUX_IDX, have a note to this
best wishes
rudi
Add SPI Master driver was done before few days,
and with this few changes
if you get a compile error cause VSPICLK_OUT_MUX_IDX, have a note to this
best wishes
rudi
-------------------------------------
love it, change it or leave it.
-------------------------------------
問候飛出去的朋友遍全球魯迪
love it, change it or leave it.
-------------------------------------
問候飛出去的朋友遍全球魯迪
Re: NES emulator on an ESP32
Hi Rudi, The ESP32-WROVER-KIT V2 will upload the latest code
and a ROM
but when it starts i get
Did I miss a step?
Glenn
Code: Select all
Glenn@playpen MSYS ~/src/projects/esp32-nesemu
$ make flash
/home/Glenn/src/esp-idf/make/component_common.mk:1: Deprecated feature: No longer necessary to include component_common.mk from /home/Glenn/src/projects/esp32-nesemu/main/component.mk
Flashing binaries to serial port COM8 (app at offset 0x10000)...
esptool.py v2.0-dev
Connecting...
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 921600
Changed.
Attaching SPI flash...
Configuring flash size...
Auto-detected Flash size: 4MB
Compressed 350976 bytes to 140590...
Wrote 350976 bytes (140590 compressed) at 0x00010000 in 3.0 seconds (effective 928.8 kbit/s)...
Hash of data verified.
Compressed 3072 bytes to 99...
Wrote 3072 bytes (99 compressed) at 0x00008000 in 0.0 seconds (effective 1641.4 kbit/s)...
Hash of data verified.
Leaving...
Hard resetting...
Code: Select all
Glenn@playpen MSYS ~/src/projects/esp32-nesemu
$ esptool.py --chip esp32 --port "COM8" --baud $((230400*4)) write_flash -fs 4MB 0x00100000 MarioBros.nes
esptool.py v2.0-dev
Connecting...
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 921600
Changed.
Attaching SPI flash...
Configuring flash size...
Wrote 32768 bytes at 0x00100000 in 0.5 seconds (547.6 kbit/s)...
Hash of data verified.
Leaving...
Hard resetting...
Code: Select all
Couldn't map rom part!
Initialized. ROM@0x20000000
Malloc: 4140 at C:/msys32/home/Glenn/src/projects/esp32-nesemu/components/nofrendo/nes/nes_rom.c:444
Head: 0x20000000 (0 c0 7e 66)
GUI: is not a valid ROM image
GUI: ROM freed
GUI: ROM not loaded
NoFrendo died? WtF?
Glenn
Re: NES emulator on an ESP32
Code: Select all
[23:00] <a2retro> Couldn't map rom part! err=> 258
[23:03] <Sprite_tm> That's ESP_ERR_INVALID_ARG
[00:17] <a2retro> Part => 300000
[00:17] <a2retro> Src_addr plus size greater then g_rom_flashchip.chip_size
[00:17] <a2retro> Couldn't map rom part! err=> 102
[00:18] <a2retro> 300000 is part.size
[00:19] <a2retro> ESP_ERR_INVALID_ARG returned from flash_mmap.c lines 91-92
[00:24] <a2retro> Part => 300000
[00:24] <a2retro> Src_addr 0x00100000 plus size 0x00300000 greater then g_rom_flashchip.chip_size 0x00200000
[00:24] <a2retro> Couldn't map rom part! err=> 102
[00:24] <a2retro> thats as far as i can take it for now
[00:27] <a2retro> perhaps my sdkconfig file is messed up?
[00:29] <a2retro> $ cat partitions.csv
[00:29] <a2retro> # Name, Type, SubType, Offset, Size
[00:29] <a2retro> # Note: if you change the phy_init or app partition offset, make sure to change the offset in Kconfig.projbuild
[00:29] <a2retro> nvs, data, nvs, 0x9000, 0x6000
[00:29] <a2retro> phy_init, data, phy, 0xf000, 0x1000
[00:29] <a2retro> factory, app, factory, 0x10000, 0x0E0000
[00:29] <a2retro> nesgame, 0x40, 0x01, 0x100000, 0x300000
[00:36] <a2retro> sdkconfig has 4MB for flash size
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- Posts: 9708
- Joined: Thu Nov 26, 2015 4:08 am
Re: NES emulator on an ESP32
Maybe your flash size is set incorrectly? It's in make menuconfig, under 'serial flasher config'.
Re: NES emulator on an ESP32
Hi it is set for 4MB. I also tried a make clean and then a rebuild but no joy so far.
Re: NES emulator on an ESP32
So after some googling i found and old workaround from ESP_igrr that forces the flash to be setup for 4MB.
SPIParamCfg(0x1540ef, 4*1024*1024, 64*1024, 4096, 256, 0xffff);
The game finally starts now but the back-light will not come on. When I press the enable button the back-light comes on momentarily, I can see the game screen and then it resets the game.
SPIParamCfg(0x1540ef, 4*1024*1024, 64*1024, 4096, 256, 0xffff);
The game finally starts now but the back-light will not come on. When I press the enable button the back-light comes on momentarily, I can see the game screen and then it resets the game.
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