FRDM Training and Resources This article provide a guide of available resources for FRDM Development boards to help you to find and use available resources (Boards, Guides, Hands-On Trainings and more)

FRDM-IMX91 Hardware Introduction The FRDM i.MX 91 development board is a low-cost and compact development board with NXP i.MX91 applications processor. On-board NXP IW610 Tri-Radio module supports Wi-Fi 6 + Bluetooth Low Energy 5.4 + 802.15.4. NXP releases Debian every six months and releases Yocto every year for this board. The FRDM i.MX 91 development board is ideal for developing modern Industrial and IoT applications. Get to know FRDM-IMX 91 Development Board   Specifications: 1x Arm® Cortex®-A55​ MAYA-W476-00B, Wi-Fi + BLE 5.4 + 802.15.4​​ Module on-board, IW610 2x GbE Ethernet (1xETER, 1xTSN) M.2 Key-E for Wi-Fi/BLE/802.15.4​ LPDDR4 16-bit 1GB eMMC 5.1, 8GB MicroSD 3.0 card slot 3x USB 2.0 Type-C connector (1-Debug, 1-PD, 1-USB2.0) + One USB 2.0 Type-A​ 40 pin (2x20) Expansion I/O One 2x5 Pin NXP interface (1- CAN, Two channels for ADC, I2C/I3C expansion)   Features FRDM-IMX91 eMMC 8GB DRAM NANYA 1GB PMIC PCA9451 WiFi Module u-blox MAYA-W476-00B on-board USB TYPE Type-C+Type-A ENET 2xGbE M.2 (Key E) SDIO Wi-Fi / BLE Y (rework needed) HDMI N Display (Parallel RGB LCD) 2x20 EXPI Camera (Parallel Camera) 2x20 EXPI 2x20 Expansion Interface Y CAN BUS Y MicroSD Y UART Y Audio  MQS Remote Debug N Power Connector Type-C PCB layers 10 Base Board DIM 6.5x10.5cm     NXP Devices On-board 　 PMIC PCA9451AHNY Real time clock/calendar PCF2131 WIFI/BLE/802.15.4 Tri-Radio IW610 in u-blox module CAN Transceiver TJA1051T/3 USB Type-C CC and SBU Protection IC NX20P0407  High-Voltage USB PD Power Switch NX20P5090UK USB PD and Type-C High-Voltage Sink/Source Combo Switch with Protection NX20P3483UK IIC Extends GPIO PCAL6524/ PCAL6408A Expansion Boards TM050RDH03-41: LCD display module 5” TFT 800X480, RGB, 120.7 mm x75.8 mm7inch MX93AUD-HAT: Audio expansion board with multiple features ​8MIC-RPI-MX8: 8-microphone array proto board for voice enablement Trainings   FRDM-IMX91 SW Release Package    Documentation  −FRDM-IMX91 Quick Start Guide −FRDM-IMX91 Board User Manual -FRDM-IMX91 Software User Guide   Useful Links −i.MX Yocto Project User’s Guide​ −i.MX Linux User’s Guide ​−i.MX Linux Reference Manual​ −i.MX Porting Guide -i.MX Debian Linux SDK User Guide

i.MX FRDM Development (FRDM) software release contains prebuilt images, documentation, and i.MX FRDM Yocto layer for FRDM-IMX boards. It also includes support for Matter and Debian release. This article will give a brief introduction of FRDM-IMX91 software release. For more details, please check i.MX FRDM Software User Guide. FRDM-IMX91 Yocto BSP Release Based on i.MX SW 2024 Q3 BSP release Linux kernel: 6.6.36_2.1.0 u-boot: 2024.04 i.MX FRDM Yocto layer source: https://github.com/nxp-imx-support/meta-imx-frdm FRDM-IMX91 BSP changes: U-boot: Add basic support for FRDM-IMX91 Kernel: Add basic support for FRDM-IMX91 and add support for kinds of accessories FRDM-IMX91 Yocto layer: Add Yocto layer for FRDM-IMX91 and integrate u-boot/kernel patches FRDM-IMX91 accessories and corresponding dtb: 5 inch Tianma LCD: imx91-11x11-frdm-tianma-wvga-panel.dtb RPI-CAM-INTB: imx91-11x11-frdm-mt9m114.dtb MX91AUD-HAT or MX91AUD-HAT + 8MIC-RPI-MX8: imx91-11x11-frdm-aud-hat.dtb 8MIC-RPI-MX8: imx91-11x11-frdm-8mic.dtb 2LL M.2 Module: imx91-11x11-frdm.dtb Build FRDM-IMX91 Yocto Image: Download i.MX SW 2024 Q3 Release: $ repo init -uhttps://github.com/nxp-imx/imx-manifest-b imx-linux-scarthgap -m imx-6.6.36-2.1.0.xml $ repo sync Integrate meta-imx-frdm layer into Yocto code base: $ cd ${MY_YOCTO}/sources $ git clone https://github.com/nxp-imx-support/meta-imx-frdm.git Yocto Project Setup: $ cd ${MY_YOCTO} $ MACHINE=imx91frdm DISTRO=fsl-imx-xwayland source sources/meta-imx-frdm/tools/imx-frdm-setup.sh -b frdm-imx91 Build images: $ bitbake imx-image-full Flashing SD card image using dd: $ zstdcat imx-image-full-imx91frdm.rootfs.wic.zst | sudo dd of=/dev/sdx bs=1M && sync Or using uuu to burn image to SD card: $ uuu -b sd_all imx-image-full-imx91frdm.rootfs.wic.zst FRDM-IMX91 Matter Support Based on i.MX Matter 2024 Q3 To include Matter support, please follow below steps to include Matter layer into Yocto build. Download i.MX SW 2024 Q3 BSP Release: $ repo init -u https://github.com/nxp-imx/imx-manifest -b imx-linux-scarthgap -m imx-6.6.36-2.1.0.xml $ repo sync Download i.MX Matter Yocto layer: $ cd ${MY_YOCTO}/sources/meta-nxp-connectivity $ git remote update $ git checkout imx_matter_2024_q3 Integrate meta-imx-frdm layer into Yocto code base: $ cd ${MY_YOCTO}/sources $ git clone https://github.com/nxp-imx-support/meta-imx-frdm.git Yocto Project Setup: $ cd ${MY_YOCTO} $ MACHINE=imx91frdm-iwxxx-matter DISTRO=fsl-imx-xwayland source sources/meta-imx-frdm/tools/imx-frdm-matter-setup.sh bld-xwayland-imx91 Build images: $ bitbake imx-image-multimedia FRDM-IMX91 Debian Release FRDM-IMX91 has support for Debian 12 OS. i.MX Debian Linux SDK distribution is a combination of NXP-provided kernel and boot loaders with a Debian distro user-space image, which includes: Debian-based rootfs Debian Base (basic packages) Debian Server (more packages without GUI Desktop) Debian Desktop (with GNOME GUI Desktop) Linux kernel BSP components various applications (graphics, multimedia, networking, connectivity, security, and AI/ML) For more details of NXP Debian Linux SDK Distribution, please check NXP Debian Linux SDK Distribution for i.MX and Layerscape. Quick Start with Debian: To create an SD card with Debian for FRDM-IMX91, please follow below steps. Download flex-installer on the Linux host $ wget http://www.nxp.com/lgfiles/sdk/lsdk2412/flex-installer $ chmod +x flex-installer $ sudo mv flex-installer /usr/bin Plug the SD card into the Linux host and install the images as below # format SD card $ flex-installer -i pf -d /dev/sdb # automatically download and install images into SD card $ flex-installer -i auto -d /dev/mmcblk1 -m imx91frdm Plug the SD card into the FRDM-IMX91 board and install the extra packages as below         1. Setup Ethernet network interface by DHCP or setting it manually $ dhclient -i end0         2. Set correct system time, for example $ date -s "22 Nov 2024 09:00:00"         3. Install extra packages for GNOME GUI Desktop version $ debian-post-install-pkg desktop         4. Or install extra packages for Server version without GUI Desktop $ debian-post-install-pkg server         5. After finishing the installation, run the reboot command to boot up the Debian Desktop/Server system  Building Debian Images with Flexbuild: To build Debian image with Flexbuild for FRDM-IMX91, please follow below steps. Set up the build environment $ git clone https://github.com/nxp/flexbuild $ cd flexbuild && source setup.env #Continue to run commands below in case you need to build in Docker due to lack of Ubuntu 22.04 or Debian 12 host $ bld docker $ source setup.env Build image with Flexbuild $ bld -m imx91frdm Flexbuild usage: To build individual part of the image, please check below command list for Flexbuild usage $ bld uboot -m imx91frdm (compile u-boot image for imx91frdm) $ bld linux (compile linux kernel for all arm64 i.MX machines) $ bld bsp -m imx91frdm (generate BSP firmware) $ bld boot (generate boot partition tarball including kernel, dtb, modules, distro bootscript for iMX machines) $ bld multimedia (build multimedia components for i.MX platforms) $ bld rfs -r debian:server (generate Debian server rootfs) $ bld apps -r debian:server (compile apps against runtime dependencies of Debian server RootFS) $ bld merge-apps -r debian:server (merge iMX-specific apps into target Debian server RootFS) $ bld packrfs -r debian:server (pack and compress target debian server rootfs) Related Documentation FRDM-IMX91 Documents: FRDM-IMX91 Quick Start Guide FRDM-IMX91 Board User Manual i.MX FRDM Software User Guide More information about i.MX productions can be found at(http://www.nxp.com/imxlinux) i.MX Yocto Project User’s Guide​ i.MX Linux User’s Guide​ i.MX Linux Reference Manual​ i.MX Porting Guide Debian documents at http://www.nxp.com/nxpdebian i.MX Debian Linux SDK User Guide

This document assumes FRDM-iMX91 board is flashed with a Linux image. For flashing instructions, refer to FRDM-iMX91_Board_Flashing guide. Then, follow this document to download software applications to test Wi-Fi, Bluetooth, and 802.15.4 performance. Hardware Prerequisites Windows or Linux PC with 64-bit OS 2 spare USB ports on PC FRDM-iMX91 Development Board Bluetooth LE device: Mobile phone which can configured as central or peripheral Wi-Fi Access Point: Standalone or mobile hotspot Wi-Fi Station: Mobile phone used as a station OPENTHREAD: 1 Another OT enabled board   Required PC Software   Serial Terminal program Setting for terminal: Baud rate:115200, Parity: none, Data bits: 8, Stop bits: 1 Windows:   PUTTY or teraterm  and USB Device driver  Linux:           Minicom (Command to download the tool : sudo apt-get install minicom)   Iperf Windows:    Download Iperf version 3.0.11 from here. Linux:            Download Debian package of IPerf 3.0.11 for Ubuntu 16.04 from here. $ wget https://iperf.fr/download/ubuntu/iperf3_3.0.11-1_amd64.deb   Install the package using the command below. $ sudo dpkg -i /path/to/package/iperf3_3.0.11-1_amd64.deb   Required Mobile Software   Iperf Application (iperf 3) Android:  HE.NET Network Tools on Google Play iOS:   HE.NET Network Tools on AppStore   nRF Connect Application Android:   nRF Connect on Google Play iOS:    nRF Connect on App Store   Required EVK Software Linux BSP Image  Version: L6.6.52_2.2.0 Link: https://www.nxp.com/webapp/sps/download/license.jsp?colCode=L6.6.52_2.2.0_MX91&appType=file1&DOWNLOAD_ID=null   To download the pre-built image, please refer to https://www.nxp.com/design/design-center/software/embedded-software/i-mx-software/embedded-linux-for-i-mx-applications-processors:IMXLINUX   hands-on Labs   Lab1 - WIFI Hands-on Lab2 - Bluetooth LE GATT Profile  Lab3 - OpenThread  Lab4-WIFI_Bluetooth-LE_OpenThread   Community Support If you have questions regarding this training, please leave your comments in our Wireless MCU Community! here   

In this lab, you will learn how to:   Bring-up Bluetooth interface. The LE GATT profile defines the way that two Bluetooth LE devices transfer the data using concept of Services and Characteristics. Configure and bring up Bluetooth LE GATT server profile using NXP-based IW610 module. Configure and bring up Bluetooth LE GATT client profile using NXP-based IW610 module. nRF connect smartphone application is used to run the LE GATT server with the help of predefined Heart Rate Service.   Bluetooth LE GATT Profile Demo Guide Lab Video   Community Support If you have questions regarding this training, please leave your comments in our Wireless MCU Community! here 

In this lab, you will learn how to: Load wireless module into board Bring-up Bluetooth The bring-up of 802.15.4 Initialize the 802.15.4 interface on the FRDM-i.MX91 board. Configure and bring up the 802.15.4 interface. Create a thread network. Add nodes to the thread network. Verify thread network connectivity. Exchange data between thread nodes.   OpenTread Hands-on Demo Guide Video   Community Support If you have questions regarding this training, please leave your comments in our Wireless MCU Community! here 

In this lab, you will learn how to: Bring up Wi-Fi and Bluetooth interface. Configure and bring up Bluetooth A2DP sink profile. Configure and bring up Wi-Fi STA mode and perform throughput test. Bluetooth LE GATT profile configurations STA mode creation Connection of STA device to Ext AP Execution of udhcp client to receive the dynamic IP address from Ext AP iPerf server execution on Ubuntu/Windows machine iPerf client execution on FRDM i.MX 91 board OT child configuration on FRDM i.MX 91 board Wi-Fi Bluetooth LE and OT COEX Hands-on Demo Guide Video   Community Support If you have questions regarding this training, please leave your comments in our Wireless MCU Community! here 

The FRDM-i.MX 91 development board enables Advance HMI Solutions supporting Industrial and consumer HMI, Enriched user experience, Immersive Audio Processing, Voice Solutions, and Interconnected Devices (smarter edge devices) among other applications. This document explains how to set up FRDM-i.MX 91 development board. This includes the hardware connections, flashing the Linux image, and accessing the debug console.   FRDM-IMX91 Board Flashing Guide Video   Community Support If you have questions regarding this training, please leave your comments in our Wireless MCU Community! here 

In this lab, you will learn how to: Bring up Wi-Fi interfaces. Run basic Wi-Fi scan Configure and bring up Wi-Fi STA mode using WPA_SUPPLICANT. Configure and bring up UDHCP server for dynamic IP assignment for associated client devices. Run UDHCP client to get dynamic IP address. Configure and bring up Wi-Fi AP mode using hostapd. Connect STA to external AP Connect AP to external STA Start ping  Wi-Fi Basic Hands on Demo Guide Video   Community Support If you have questions regarding this training, please leave your comments in our Wireless MCU Community! here