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    • J
      jdnle replied to the thread Maximizing External RAM DMA Speed.
      Solved it through intense guesswork. I modified the MEMORY section to the following: MEMORY { ITCM (rwx): ORIGIN = 0x00000000, LENGTH = 224K DTCM (rwx): ORIGIN = 0x20000000, LENGTH = 224K OCRAM (rwx): ORIGIN = 0x20280000, LENGTH =...
    • J
      jdnle replied to the thread Maximizing External RAM DMA Speed.
      How would I go about doing that? I've tried tinkering with values in imxrt1062_t41.ld, but I have no experience editing linker scripts. After some tinkering I got the IOMUXC_GPR_GPR17 register to report that I've allocated memory banks to OCRAM...
    • J
      jdnle replied to the thread Maximizing External RAM DMA Speed.
      768000 bytes total, so 256kb more
    • J
      Hello, I've been working on a direct 40-pin display driver for the Teensy 4.1 for a while now. I've made major progress but the main bottleneck I've faced is memory speed. I'm trying to drive a 480 * 800 pixel screen with 16-bit color, which is a...
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