Overview

This is the Linux BSP (Board Support Package) for the NXP i.MX RT1050 EVK board.

The BSP provides a software development environment for evaluation and development of Linux (uClinux) on the Cortex-M7 processor core of the  i.MX RT1050 microcontroller using the NXP i.MX RT1050 EVK board as a hardware platform.

Supported Features

The following list summarizes the features and capabilities of this release of the NXP i.MX RT1050 EVK BSP:

• Linux:
  • Kernel v.4.5;
  • Serial Linux console;
  • Ethernet device driver and Linux TCP/IP networking (ping, NFS, Telnet, FTP, NTPD, etc);
  • busybox v1.24.2;
  • POSIX pthreads;
  • Hardened exception handling; an exception triggered by a process affects only the offending process;
  • MPU user-level protection support;
  • Secure shell (ssh) and secure copy (scp);
  • SD Card partitioning;
  • Multi-port serial UART driver;
  • I2C bus driver;
  • USB Host and Device (gadget) device drivers for onboard USB Host and OTG interfaces;
  • LCD (frame-buffer) and touch screen support;
  • WiFi connectivity with security;
  • PPP-based TCP/IP connectivity over GSM/3G modems;
  • Bluetooth support using bluez;
  • GPIO device driver.
• U-Boot firmware:
  • U-Boot v2017.09-rc1;
  • Target initialization from power-on / reset;
  • Runs from the SD Card and internal ITCM (no external memory required for standalone operation);
  • Serial console;
  • LCD splashscreen support;
  • Ethernet driver for loading images to the target;
  • Device driver for SD Card and self-upgrade capability;
  • Autoboot feature, allowing boot of OS images from the SD Card or other storage with no operator intervention;
  • Persistent environment in the SD Card for customization of target operation;
  • Sophisticated command interface for maintenance and development of the target.
• Development tools:
  • Linux-hosted cross-development environment;
  • 4.7.4 GNU toolchain is used for development of U-Boot, Linux and user-space applications;
  • Cross GDB for debugging user-space applications;
  • mkimage tool used by the Linux kernel build process to create a bootable Linux image.

New and Changed Features

This section lists new and changed features of this release:

1. Use the serial_lpuart driver for serial.
   ID: RM 1959.
2. Support NXP IMXRT-1050 EVKB board.
   ID: RM 2550.

Known Problems & Limitations

This section lists known problems and limitations of this release:

1. Linux clocks are hardcoded in .dts.
   ID: RM 2030.
   Workaround: None.
2. GDB debug sessions are accompanied with fault messages to the Linux console.
   ID: RM 2063.
   Workaround: None.