[Oberon] Smallest Oberon board ever made?

[Magnus Karlsson]

Initial project code release available at 
https://github.com/Saanlima/RISC5Verilog_psram

Magnus

On 1/9/2021 9:59 AM, Magnus Karlsson wrote:
> Thanks!
>
> Monochrome video framebuffer takes 96 KB (1024 x 768 / 8).
> The Artix7-50 has 300 KB of BRAM, of which 128 KB is used for cache, 
> 96 KB used for video memory, 2 KB for boot memory and 74 KB not used 
> at the moment.
> The address of the video framebuffer can be changed via a register so 
> that it can be moved from the default location at the end of the lower 
> 1 MB so above the 8 MB range.
> The IPS6404 is an odd memory. Expressif, the maker of the very popular 
> ESP8266 and ESP32 wireless microcontrollers also makes (or rebrands) 
> this part for use with ESP32.
> https://www.espressif.com/sites/default/files/documentation/esp-psram64_esp-psram64h_datasheet_en.pdf 
>
> https://www.aliexpress.com/i/4000218445956.html
>
> Cheers,
> Magnus
>