nesdev.org

I'm currently accessing Cypress forums. Asking how/if the Cypress can effectively read/write a parallel flash.

I kind of have it figured out subconsciously. It's good to ask and learn more.

Guys/Gals check this out:

http://www.cypress.com/?id=193

I've been looking into it, and it sounds very useful and interesting.

*Using a micro-controller to receive data serially in any fashion will be slower than if the mcu can get data in byte chunks from what ever is handling the USB comms. The less time the mcu has to handle recieving data, the more time it can devote to pumping data into the flash. Get the data in byte...

Can you fellas remind me of the most important speed factors in accomplishing a speedy upload/download of Flash Memory? Assuming this setup is through USB (hiSpeed, or Full), and uses a microcontroller. I can't be much more clearer than that (literally)

Happy independence day!! I'm totally independent from giving a ****!!

Hello, I want to be able to flash my chips over USB Fast! While doing research I come across some questions. I once built a GB Flasher that used an 8bit microcontroller (ATmega8515), and I've noticed that the all of the flash roms that are recommended for Gameboy and SNES are organized by 8 sections...

From the moment I saw "EPROM emulator", I realized that the OP is trying to run a freshly built ROM image on hardware without having to pull the CF out of the PowerPak all the time. When the user clicks "Build and Run" in an IDE, the IDE rebuilds the ROM image from source code a...

Well, I thought it would necessary for fast pc->sram r/w, but please do correct me if I am wrong. I will have to see. Doing the math: 140ns × 524288 bytes = 7.3ms. Also, the SNES can't read from anything in its cartridge slot in less than 140ns. (one read cycle at fastest is 3.6MHz; half of that is...

I'm just looking for the fastest and easiest way to get a ROM over USB to a flash chip and/or SRAM chip(s). Unless there are better ways unknown to me. Please shine the light on me.

slow down. I never wanted to transfer anything near 12MB! Actually, I just want to start testing with 4Mbits now.

Hi Tepples,

I would prefer 1-2 seconds,

Well, I thought it would necessary for fast pc->sram r/w, but please do correct me if I am wrong. I will have to see. Doing the math: 140ns × 524288 bytes = 7.3ms. Also, the SNES can't read from anything in its cartridge slot in less than 140ns. (one read cycle at fastest is 3.6MHz; half of that is...

lidnariq wrote:20ns is overkill. For the SNES, you won't need to buy anything faster than 140ns.

Well, I thought it would necessary for fast pc->sram r/w, but please do correct me if I am wrong. I will have to see.

I have a lot to learn. Since the most important thing to me now is the transmission from computer to memory device, tepples, you mentioned that if I used a high-speed usb transmission. What could I use to achieve such high speeds? The current 2 possibilities I have chosen to flirt with are FTDI FT23...

This should probably go in the hardware forum. There's a lot of folks here that can help you more than I, but here's a few points: 1. Flash takes a long time to overwrite due to the speed of the memory, communication port shouldn't be your bottleneck. 2. AVR micro controllers with USB support are t...