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PSLab Hardware V2 - new chip #79

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mariobehling opened this Issue Dec 9, 2018 · 3 comments

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mariobehling commented Dec 9, 2018

There are better chips available for future versions of PSLab. One recommendation is LPC43S70FET256: 32-bit ARM Cortex-M4 + 2 x M0 MCU; 282 kB SRAM; Ethernet; two HS USBs; 80 Msps 12-bit ADC; configurable peripherals, AES engine

https://www.nxp.com/products/processors-and-microcontrollers/arm-based-processors-and-mcus/lpc-cortex-m-mcus/lpc4300-cortex-m4-m0/32-bit-arm-cortex-m4-plus-2-x-m0-mcu-282-kb-sram-ethernet-two-hs-usbs-80-msps-12-bit-adc-configurable-peripherals-aes-engine:LPC43S70FET256

Because of the on board 80 MSPS ADC, 6 channel and so the oscilloscope function would be able to capture faster signals and 12 bit accuracy should be sufficient enough for most uses. It will still be available for at least 8 years, according to NXPs roadmap. The price is comparable to the STM32L4.

@mariobehling mariobehling changed the title PSLab Hardware V2 - new chips PSLab Hardware V2 - new chip Dec 9, 2018

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cweitat commented Dec 23, 2018

Alternatively, to look at FPGA for better specifications

@geekyjoyce72

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geekyjoyce72 commented Dec 23, 2018

Alternatively, to look at FPGA for better specifications

Hmmm but still, performance in terms of analog and digital sampling/signal generation is really down to the AD/DA converters and their specs. FPGA will drive the cost and design complexity up needlessly, compared to a MCU like the one suggested.

I don't see an application here that justifies the use for FPGA. Thoughts?

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cweitat commented Dec 23, 2018

@geekyjoyce72 is just an alternative that we can KIV. :)

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