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Max The Magnificent
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re: 28KB Java virtual machine supports 32-bit MCUs
Max The Magnificent   11/5/2012 9:20:23 PM
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So, is there any reason this virtual machine couldn't run on FPGA-based Cortex-M hard and/or soft processors?

Regis Latawiec
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re: 28KB Java virtual machine supports 32-bit MCUs
Regis Latawiec   11/6/2012 10:48:32 AM
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Hi Max. Yes, the MicroJvm can run on any ARM Cortex-M implementation. No limitation due to FPGA.

cdhmanning
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re: 28KB Java virtual machine supports 32-bit MCUs
cdhmanning   11/6/2012 8:40:27 PM
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This is certainly not the industry's first small JVM. Lejos has been doing this for ages: http://lejos.sourceforge.net/ Lejos is about the same size on ARM. Lejos has been running on ARM micros for almost 6 years and on H8 for much longer than that.

Duane Benson
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re: 28KB Java virtual machine supports 32-bit MCUs
Duane Benson   11/7/2012 4:41:08 AM
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I'm not a big fan of Java. The promise has always been great, but it always seems like the reality falls a bit short. Of course, I've only used Java as an applications platform, not as a development platform or as an embedded OS. But ignoring my opinions, I wouldn't think that running this on a Zynq would be out of the question. I would think that a FPGA based ARM (hard or soft) would be an ideal use for a JVM like this.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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