Feb 3, 2023 · I'm struggling with the DRAM-size in U-Boot. Our custom board solution uses a 1Gb LPDDR4 RAM, so I changed the PHYS_SDRAM_SIZE in imx8mm_evk.h to 0x4000 0000, the DDR is configured with the stress tool. But in the bootlog it still says DRAM: 2GiB.

Mar 18, 2013 · If I make a load on RAM and watch the free memory using free command, then I see that everything hangs around 256MB of memory usage. I've tried passing the mem=512M value from u-boot, but still the hanging issue.

This document describes how to use the HyperRAM with the i.MX RT MCU, including hardware connections, HyperRAM protocol, source code, and performance. The i.MX RT series MCU is a crossover product from NXP. It includes a Flexible Serial Peripheral Interface (FlexSPI) controller which supports HyperBus devices (HyperFlash/ HyperRAM).

MX RT series take advantage of the Arm® Cortex®-M7 core with 32K/32K L1 I/D-Cache, which operates at the speed up to 600 MHz to provide high CPU performance and best real-time response. i.MX RT1050 processor has 512 KB on-chip RAM, which can be flexibly configured as TCM or general-purpose on-chip RAM. RAM. i.

How to Enable HyperRAM with i.MX RT (document AN12239) introduces the basic knowledge about how to enable HyperRAM with i.MX RT. This application note describes the advanced usage of HyperRAM/PSRAM when used with FlexSPI on i.MX RT MCU.

Jul 1, 2020 · How to load and run a program directly from i.mx6 internal RAM (SRAM)? Basically we are planning to have tiny test program which will run in IMX6 internal SRAM to test external memory attached with IMX6 like DDR, eMMC, SPI-NOR, …

CONFIG_DFU_RAM This enables support for exposing RAM via DFU. Note: DFU spec refer to non-volatile memory usage, but allow usages beyond the scope of spec - here RAM usage, one that would help mostly the developer.

Jan 22, 2019 · Because the bootloader on the i.MX RT will load the application into RAM space, I make sure that my project is linked to RAM. An easy way is to specify this during project creation/import:

The iMX RT1052/62 OEM Board is a Computer-on-Module (COM) based on NXP's ARM Cortex-M7 i.MX RT1052/62 microcontroller. The board provides a quick and easy solution for implementing a high-performance ARM Cortex-M7 based design. The …

Sep 2, 2022 · You can determine how much memory in the OCRAM, Linux kernel Reserved for itself by looking into the dtsi file (reserved memory node) of the soc. in the case of imx8mp, it is 448 KB. So here 0x70000 ( 448K) bytes are reserved for Linux usage. and cannot be virtually mapped to the userspace as specified by the no-map property.