3 ms·
Why not store emulated RAM on disk and get the full 512KB experience? Killing the drive from overuse? Surely the flash speed of the RP2040 surpasses the RAM spe
by wds 2y ago
Why not store emulated RAM on disk and get the full 512KB experience? Killing the drive from overuse?
Surely the flash speed of the RP2040 surpasses the RAM speed of the original Mac.
- sitkack 2y agoIf only the RP2040 supported SPI PSRAM!
- str3wer 2y agowhat about a esp32-s3?
- qiqitori 2y agoThe PicoGUS uses PIO to implement a PSRAM interface in order to store 1 MB of audio sample data: https://github.com/polpo/rp2040-psram https://github.com/polpo/rp2040-psram
- sitkack 2y agoThat is cool, I'll give it a go. It could be made workable for something like a JIT or interpreter (like the MicroMac). Could it be added to the RP2040 address space and used as a native load store target? The neat thing about the ESP32 chips is you can extend their internal memory with external SPI PSRAM chips. https://cdn-shop.adafruit.com/product-files/4677/4677_esp-psram64_esp-psram64h_datasheet_en.pdf https://cdn-shop.adafruit.com/product-files/4677/4677_esp-ps...
- sitkack 2y agoUsing QSPI RAM with RP2040's SSI in read-write mode http://dmitry.gr/?r=06.%20Thoughts&proj=10.%20RomRam http://dmitry.gr/?r=06.%20Thoughts&proj=10.%20RomRam