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h10 foxd27 yarm roadrunner acqua aria arietta cmpanel cmhome foxg20 foxlx netus terraRoadRunner (Microchip SAMA5D27) technical documentation
Downloads
Create the Linux boot images from scratch
- Compiling AT91bootstrap 4.0.4
- Compiling Linux Kernel 5.15 LTS
- Build a customized Linux Debian image with Debos
- Compile from scratch Buildroot 2022.02.9 for Roadrunner
Power
Peripherals how tos
- Using up to 10 serial ports on RoadRunner SOM
- ADC converter
- SPI bus
- How to use the I2C ports
- ISC Image Sensor Controller (Camera)
- 1-Wire
- General purpose I/O (GPIO lines)
- Manage the GPIO lines from command line with gpiod
- Manage the GPIO lines in Python3 and C with libgpiod
- Manage the GPIO lines using Node-RED
- Manage the GPIO lines using the Microchip Peripheral I/O Python Package
- Manage the GPIO lines using the sysfs user interface (deprecated)
- Manage the special GPIO lines
- Check the current gpio setting: less /sys/kernel/debug/pinctrl/fc038000.pinctrl-atmel_pinctrl/pinconf-pins
- Class D amplifier
- PDMIC MEMS microphone stereo input
- Display DPI interface
- MMC0 bus
- WiFi
- How to Use the SAMA5D2 PWM Under Linux (Microchip)
- Find out the speed of the usb ports
How tos
- Write on QuadSPI memory with SAM-BA
- Compile a SAM-BA Applets
- Run a full working Buildroot Linux using just a 128MB QuadSPI
- Fix the MAC address of RoadRunner
- Installing Node-RED 3.0.2 on RoadRunner
- More...
Third party how tos
- Scripts to automate kernel builds for AcmeSystem's boards
- Scripts to build Debian images for AcmeSystems boards
Experiments
Hardware reference
- Pinout
- Pin description
- Berta D2 schematic: (ver 1.1), (ver 1.0)
- Berta D2 gerber files (ver 1.1)
- How to recognize an Acme board
Mechanical
- Mechanical dimensions
- SOM step model
- Headers Step model
- BertaD2 Step model
- BertaD2 Step model without RoadRunner
Declarations of conformity
PCB reference
- Gerber Files
- Altium component SCH
- Altium component PCB
- Altium Designer project files of Berta D2 (ver 1.1), (ver 1.0)
How to design the PCB to use with Acme SOM
- How to design the power supply circuitry
- How to design the Ethernet circuitry
- How to design the USB circuitry
- How to design the microSD circuitry
- How to design the PWM circuitry
- How to design the ADC circuitry
- How to design the serial circuitry
- How to design the GPIO circuitry
- How to design the LCD circuitry
- miniPCIe for SIMCOM 7600 Modem
- How to design the HSIC circuitry
Studies
Datasheets
- Microchip SAMA5D27
- QuadSPI Serial NOR Flash Memory 16MB (RW210)
- QuadSPI Serial NOR Flash Memory 64MB (RW181)
- QuadSPI Serial NOR Flash Memory 128MB (RW185)
- Micron DD3 DRAM 256MByte
- Hirose Connectors for carriers board
- Use Hirose DF40C-100DS-0.4V(51) for Stacking Height of 1.5mm
- Use Hirose DF40HC(3.0)-100DS-0.4V(51) for Stacking Height of 3.0mm
Other links
- Using Ultra Low Power mode 1 (ULP1) on SAMA5D2
- The DRM/KMS subsystem from a newbie’s point of view
- How to use the Atmel KMS/DRM LCD driver
- IoT Security Suite For Microchip SAMA5D2
- SAMA5D2 Xplained Board
- SAMA5D2 Xplained Ultra Evaluation Kit
Obsolete articles
- Compiling AT91bootstrap 3.9.1 (old)
- Compiling Linux Kernel 4.19 LTS (old)
- Compiling Linux Kernel 4.4.X LTS
- Build a Debian Jessie root filesystem
Related products
Low-power Linux System On Module
- CPU Microchip SAMA5D27
- Cortex A5 @ 500 MHz
- Low power consumption:
Suspend to RAM mode 10mW
Full speed: 396mW - Debian, Buildroot and Yocto Linux
- Fully open source drivers
Evaluation board for RoadRunner SOM
- All the circuitries you need to test the RoadRunner SOM
- USB host, USB device, Ethernet port, MicroSD socket
- Test points for power consumption measurements
- All the Roadrunner signals exposed on 2.54mm pitch pins
- On-board supercap for RTC and backup memory circuit
