From 5fbb5b16eaa6b5d110562e2c15d705ca2e62daef Mon Sep 17 00:00:00 2001 From: Alexey 'Cluster' Avdyukhin Date: Thu, 1 Dec 2022 13:58:32 +0400 Subject: [PATCH] Update README.md --- README.md | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/README.md b/README.md index 3748117..06a7216 100644 --- a/README.md +++ b/README.md @@ -1,6 +1,5 @@ # Famicom/NES Dumper/Writer - ## Overview This is a powerfull dumper/writer for Famicom/NES cartridges and Famicom Disc System cards. The goal of the project is to create an ideal famicom data bus simulator. It's using a very accurate M2 cycle simulation and FSMC (Flexible Static Memory Controller) to access PRG and CHR memory. FSMC is precisely synchronized with the M2 clock signal using a CPLD chip. Also, this device is very fast. @@ -13,17 +12,19 @@ This is a powerfull dumper/writer for Famicom/NES cartridges and Famicom Disc Sy ![Photo](https://user-images.githubusercontent.com/4236181/199539772-cbb50b0d-46fc-4041-86d4-61bbee8b1c01.jpg) +![COOLBOY writing using GPIO pins](https://user-images.githubusercontent.com/4236181/205022872-06b35562-9506-4536-8cd8-bed026156c52.jpg) + You can use it to: * Dump cartridges, so you can play copy of your cartridge on emulator. * Read/write battery backed saves, so that you can continue your saved game on emulator/console. -* Write special cartridges like [COOLGIRL](https://github.com/ClusterM/coolgirl-famicom-multicard). -* Rewrite ultracheap chinese COOLBOY cartridges. Soldering is required to work with old versions but it's very simple. New versions can be rewritten without soldering. +* (Re)write special cartridges like [COOLGIRL](https://github.com/ClusterM/coolgirl-famicom-multicard). +* (Re)write ultracheap chinese COOLBOY cartridges. Soldering is required to work with old versions but it's very simple. New versions can be rewritten without soldering. +* (Re)write UNROM-512 cartridges (Nesmaker) * Test your cartridges. * Read and write Famicom Disk System cards using FDS drive with the RAM adapter. -* Some reverse engineering. -* Anything else that requires Famicom bus simulation. - +* Do some reverse engineering. +* Anything else that requires Famicom/NES bus simulation. ## Schematic: @@ -33,7 +34,6 @@ Bill of Materials: ![BoM](schematic/bom.png) - ## Firmware You need to write firmware to two chips: the STM32F103ZET microcontroller and the EPM3064 CPLD. But actually you need only to flash bootloader to STM32 using ST-Link programmer. Using bootloader you can flash both firmwares: to the STM32F103ZET and to the EPM3064.