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I got almost all of my wishes granted with RP2350

(dmitry.gr)
700 points elipsitz | 8 comments | 08 Aug 24 13:03 UTC | HN request time: 0.001s | source | bottom
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vardump ◴[08 Aug 24 20:10 UTC] No.41195669[source]▶
RP2040 had Doom ported to it. https://kilograham.github.io/rp2040-doom/

RP2350 looks very much like it could potentially run Quake. Heck, some of the changes almost feel like they're designed for this purpose.

FPU, two cores at 150 MHz, overclockable beyond 300 MHz and it supports up to 16 MB of PSRAM with hardware R/W paging support.

replies(2): >>41196191 #>>41197725 #
chipxsd ◴[08 Aug 24 20:59 UTC] No.41196191[source]▶
While outputting DVI! I wouldn't be surprised.
replies(1): >>41196755 #
1. rvense ◴[08 Aug 24 21:55 UTC] No.41196755[source]▶
Mouser have 64 megabyte PSRAMs.

I really want a Mac System 7 grade operating system for this chip...

replies(2): >>41197283 #>>41198398 #
2. dmitrygr ◴[08 Aug 24 22:57 UTC] No.41197283[source]▶
No they do not. 64megabit
replies(1): >>41200172 #
3. geerlingguy ◴[09 Aug 24 02:41 UTC] No.41198398[source]▶
I'd settle for Mac 512K ;)

https://github.com/evansm7/pico-mac/issues/7

4. rvense ◴[09 Aug 24 09:21 UTC] No.41200172[source]▶
Did you bother to check? It's octal, not QSPI, so I don't know if it's compatible. (edit - and 1.8V, inconvenient)
replies(2): >>41201728 #>>41202070 #
5. andylinpersonal ◴[09 Aug 24 13:40 UTC] No.41201728{3}[source]▶
Octal PSRAM usually cannot fallback to quad mode like some octal flash did.
replies(1): >>41202048 #
6. rvense ◴[09 Aug 24 14:14 UTC] No.41202048{4}[source]▶
Actually reading the datasheet[1] it doesn't look like it.

[1] https://www.mouser.dk/datasheet/2/1127/APM_PSRAM_OPI_Xccela_...

7. dmitrygr ◴[09 Aug 24 14:16 UTC] No.41202070{3}[source]▶
Did you? It doesnt do qspi mode
replies(1): >>41203121 #
8. rvense ◴[09 Aug 24 16:05 UTC] No.41203121{4}[source]▶
Of course I did. If you also did, you would know that they do in fact have 64 megabyte PSRAMs as I stated. So a helpful comment would have been "they're not compatible, though". Your reply as it stands just makes it sound like you maybe assumed that I don't know the difference between megabits and megabytes.