+ Enough space for your ROMs
+Flashcart embeds 64 MiB of fast SDRAM memory, with additional 14 MiB available from the + flash memory, totaling up to 78 MiB - more than biggest known retail ROMs.
+SummerCart64 features
+Blazing fast I/O
+Both microSD card slot and USB port operate at peak speed of ~23.8 MiB/s. Even largest + retail ROMs (64 MiB) can be loaded in just couple of seconds.
+Never lose your progress
+Every known save type found in the retail games is supported. Saves are automatically flushed to + the microSD card (or via USB with PC app attached) during gameplay - no reset button press is + necessary!
+Complete 64DD emulation built-in
+Forget about 64DD ROM conversions - SummerCart64 can play disk dumps directly!
+Every region is welcome
+SummerCart64 supports every N64 console regardless of its region. NTSC/PAL switching is done + automatically and last detected region is stored inside NVRAM.
+Run games with ease
+Browse, run and manage your game library right on the N64 console with the N64FlashcartMenu - a dedicated menu software for + the SummerCart64.
+Dedicated terminal PC app
+Powerful, and yet simple, sc64deployer
+ app greatly enhances developer user experience.
Outstanding developer features
+SummerCart64 was born as a device for homebrew development first. As a consequence it + incorporates many features to ease development of your own games:
+-
+
- Dedicated PC app for loading ROMs and console access. +
- Simple, command based, communication protocol - both on the USB and N64 side. +
- microSD card interface with simple, block based, protocol. +
- Fast USB interface with well documented protocol. +
- 8 kiB buffer for general use with microSD card or USB interface. +
- Native support for microSD card and USB interface in the libdragon. +
- UNFLoader support - both in the PC app + and USB library. +
- libcart support. +
- IS-Viewer 64 debug interface support in the hardware. +
With freedom in mind
+SummerCart64 project is completely open source - you can modify and build upon it freely as long + as GNU GPLv3 license terms are satisfied.
+Hardware specification
+Input / Output
+-
+
- N64 cartridge edge connector +
- microSD card slot (~23.8 MiB/s peak, cards up to 2 TB are supported) +
- USB Type-C receptacle (~23.8 MiB/s peak) +
- Programmable push button on the back +
- Status LED +
Memory
+-
+
- 64 MiB SDRAM +
- 16 MiB QSPI Flash (last 2 MiB is reserved for internal use) +
- 8 kiB buffer in the FPGA +
- 64 byte battery-backed NVRAM in the RTC +
CIC emulation
+-
+
- Based on the UltraCIC_C with enhancements + +
- Automatic region switch +
- Fully programmable seed/checksum values +
- Supports booting directly from the 64DD IPL +
Save support
+-
+
- EEPROM 4 kbit +
- EEPROM 16 kbit +
- SRAM 256 kbit +
- SRAM 3x256 kbit +
- FlashRAM 1 Mbit +
- SRAM 1 Mbit +
- Automatic writeback after ~1 second to the microSD card or USB interface +
Add-on hardware emulation
+-
+
- 64DD (N64 Disk Drive) - disk access to/from microSD card or USB interface +
- IS-Viewer 64 (movable base address, fixed 64 kiB buffer size, debug
printf+ only)
+
Other
+-
+
- Real time clock +
- CR2032 RTC backup battery +
- N64 bootloader capable of loading menu binary from the microSD card and displaying error + messages +
- Firmware updatable via USB interface +
- Seamless power switching between USB and N64 +