Nanoavionics' payload controller is a subsystem dedicated to interface between payloads and the NanoAvionics CubeSat bus. It has a number of different interfaces for payload connection and can buffer data from payloads. It also controls the S-band transmitter or transceiver to transmit the buffered data to ground stations.

Key features of the payload controller include:

  • Integrated TRC
  • microSD NAND Memory support (up to 2 x 32 GB)
  • Three On-Board PWM Controlled H-Bridges
  • PWM Outputs
  • FreeRTOS
  • In-Orbit firmware update
  • Firmware Power-on-check and Restore
  • RFS – Redundant Record-based File System
  • CSP Support
  • Self-Diagnostics
  • Dynamic CPU Frequency Control
  • User-friendly Console

The software included in this subsystem is based on a robust, modular design, which includes the file-system, CLI, CSP, configuration and firmware update engines. These features together create a user-friendly environment for setting up and running the subsystem. Each of these modules, along with subsystem-specific configuration and feature details are described in software datasheet document.

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Last updated: 2021-06-05

Payload Controller 1.5



65 g (typical)
95.50 ± 0.10
89.00 ± 0.10
12.21 mm
processor type
Cortex™ M7 core
clock speed
up to 400 MHz (configurable)
200 (typical)
data storage
1 MB of internal RAM
2 MB of internal FLASH memory
512 kB of FMC-connected FRAM memory
4 MB FMC-connected SRAM
256 MB of external NOR-FLASH for data storage
2 × 512 kB of FRAM (SPI) for frequently changing data storage
data interface
2 x RS422
3 x buffered SPI
2 x buffered USART/UART
2 x I2C
100BASE-TX Ethernet Port (with integrated magnetics)
operating temperature
-40 to 85 C
storage temperature
-40 to 85 C
radiation tolerance
20 krad
80 G
14 Grms

1. 2 ms half-sine pulse, according to NASA GEVS 7000 standard

2. according to NASA GEVS 7000 standard)


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