Aiming at task request of multiple sensors realtime and synchronous acquisition

a high-precision multisensor realtime and synchronous acquisition system of pico-satellite designed

based on custom commumication protocol

combining architecture design of digital signal processor（ DSP） and field programmable gate array（ FPGA）

inter-integrated circuit（ I2 C） bus with synchronous start signal

through virtual direct memory access（ DMA） and real-time interrupt response system design

data collection

storage and sending can be realized synchronously. The test result shows this system can aquire 84 sensors synchronously in a frequency of 100 Hz and its synchronous precision is prior to 10 μs

this system has already been applied on some pico-satellite.