[Oberon] Smallest Oberon board ever made?
magnus at saanlima.com
Sun Jan 10 01:34:49 CET 2021
Initial project code release available at
On 1/9/2021 9:59 AM, Magnus Karlsson wrote:
> 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.
> On 1/8/2021 3:49 PM, Pablo Cayuela wrote:
>> Oh!, it's really amazing the level of integration, and even the micro
>> connectors appear big against the chips.
>> If BRAM is for monochrome video memory, how much is it?
>> The 128 kB caché is part of the 8 MB PSRAM chip (IPS6404) or where it
>> The IPS6404, is it acquirable? How much is the cost? I read on the
>> IPUS site "for limited customers only", maybe you're one of them.
>> Congratulations Magnus for such a wonderful board.
>> Best regards,
>> Prof Pablo Cayuela
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