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Ultrasound Low power WiFi with IMX7

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Short Description

In a wireless ultrasound probe, transmitting raw ultrasound data at high frame rates with low power consumption appears as a challenging task. On the one hand, WiFi solutions compatible with low-power embedded systems (e.g. MCUs) are typically limited to small throughputs (< 5 Mbps). On the other hand, faster WiFi modules that are optimized for high-performing SoCs (running a general-purpose OS) come with increased power consumptions. A promising solution is to use heterogeneous multicore platforms, combining the abvantages of MCUs and high-performance SoCs, and featuring efficient power-down modes.


Goal & Tasks

The goal of the mini-project is to explore a processor i.MX 7ULP from NXP) for low-power ultrasound data streaming through WiFi. In this mini-project you will:

  • Program real-time domain (Cortex-M4, FreeRTOS) of IMX SoC to receive raw ultrasound data through QSPI + DMA
  • Program application domain (Cortex-A7, Linux) to stream the data through WiFi.
  • Test the throughput of the system and corresponding power consumption.


Prerequisites

  • Python (sklearn, tensorflow)
  • C
  • Experience with Heterogeneous platforms is nice to have

Status: Completed

Guillaume Thivolet

Supervision: Sergei Vostrikov, Andrea Cossettini

Character

20% Literature Study
80% Coding


Professor

Luca Benini

Practical Details

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