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  1. J

    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 = 288K RAM (rwx): ORIGIN = 0x20200000, LENGTH =...
  2. J

    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, but I have no idea how to unify it with RAM2. /*...
  3. J

    Maximizing External RAM DMA Speed

    768000 bytes total, so 256kb more
  4. J

    Maximizing External RAM DMA Speed

    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 bit over the size of memory that can fit in RAM2...
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