Development of an advanced nano-satellite (VELOX-IV) : onboard computer system
VELOX-IV is an ongoing satellite project by NTU’s Satellite Research Centre (SaRC). This satellite will be a nano-satellite. This final year project focuses on the development of program updating feature for the onboard computer system. The current 8-bit microcontroller used in previous satellite...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Final Year Project |
| Language: | English |
| Published: |
2016
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/69308 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | VELOX-IV is an ongoing satellite project by NTU’s Satellite Research Centre (SaRC).
This satellite will be a nano-satellite. This final year project focuses on the development
of program updating feature for the onboard computer system.
The current 8-bit microcontroller used in previous satellites projects are not able to meet
the demand of complex research project in the future and the ready to fly kit used in the
development of previous satellite onboard computer system presents various limitation in
performance, peripherals, data buses and instruction size. Therefore, a 32-bit
microcontroller from Texas Instruments is used in the development of this
program-updating feature for the onboard computer system.
In this project, a serial communication interface was used to transfer program code from
personal computer to the microcontroller, and a serial peripheral interface was used to
interface with external flash memory to store a backup of the bootloader firmware. The
bootloader firmware and programs will be stored in on-chip flash memory, which will be
executed when power up. In case of corruption or accidental erase of on-flash memory in
space. The microcontroller will boot from the backup bootloader firmware stored in
external flash memory. |
|---|