 Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me. |
Forum Index : Microcontroller and PC projects : PicoMite: ILI9341 TFT with parallel interface
  Page 2 of 2 |
|||||
| Author | Message | ||||
| Volhout Guru  Joined: 05/03/2018 Location: NetherlandsPosts: 5091 |
Indeed, let's not get ahead... Let's first prototype and see how much gain there is in speed... because that is why this is interesting, right ? Volhout Edited 2023-09-14 19:40 by Volhout PicomiteVGA PETSCII ROBOTS |
||||
| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 10315 |
For reference since easy to do on the MMX (200MHz) Time for CLS ILI9341 SPI 49mSec ILI9341 16-bit parallel 6mSec ILI9341 8-bit (calculated from the scaled time of 8-bit 480*272 SSD1963) 14mSec NB: the SPI on the MMX is more efficient than the RP2040 but parallel port operations are slower (2 cycles per write) On Pico @ 252MHz ILI9341 SPI 69mSec (66mSec at 133MHz) ILI9341 8-bit (calculated from the scaled time of 8-bit 480*272 SSD1963) 8mSec (14 at 133MHz) Edited 2023-09-14 20:01 by matherp |
||||
thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4311 |
That sounds promising Peter, it certainly looks like it would be fast enough that blitting to the display would no longer be the bottleneck for arcade games. Tom MMBasic for Linux, Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
||||
| Page 2 of 2 |
|||||
 Print this page |
 |
The Back Shed's forum code is written, and hosted, in Australia. | © JAQ Software 2025 |
