Hardware/FPGAPoetic

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(Analog to digital converters)
 
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* 4 User Switches
 
* 4 User Switches
 
* 3 Buttons
 
* 3 Buttons
* 106.25MHz Main Clock
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* 100.0MHz Main Clock
 
* VME connector 3x32Pin compatible with POETIC Rack backplane
 
* VME connector 3x32Pin compatible with POETIC Rack backplane
 
* 2 Mezzanine Connector ARM-EBS and FPGA-EBS compatible
 
* 2 Mezzanine Connector ARM-EBS and FPGA-EBS compatible
 
* Powered by USB or VME Power
 
* Powered by USB or VME Power
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 +
= Analog to digital converters =
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 +
The mezzanine board holds 20 [https://www.ti.com/product/ADS7886 ADS7886] analog to digital converters.
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These are 12 bit converters with a maximal sampling rate of 1 MHz.
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<span style="color:red">Actually Channel 6, 7, 8, 9, 10, 12, 13, 14 and 15 don't work (Probably due to propagation delay with SCLK)</span>
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= Digital to analog converters =
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 +
The mezzanine board holds 2 [https://www.ti.com/product/DAC124S085 DAC124S085] quad analog to digital converters,
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allowing for 8 analog output channels.
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These are quad 12&nbsp;bit converters with a maximal sampling rate of 1.8&nbsp;MHz if only one channel is used.
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The sampling rate drops to 460&nbsp;kHz when all 4 channels are used.
  
 
= Programmation =
 
= Programmation =

Latest revision as of 14:50, 12 July 2022

Contents

The basic idea behind this board is to have a FPGA board that interface a VME connector compatible with the POETIC Rack backplane. This board was developped during Jean Nanchen's TB (2021) and used in the NGRW project in addition with the FPGA ADC-DAC Mezzanine.

Type FPGA Poetic Schematic UCF Description
V1.0 FPGA Poetic V1.0 FPGA-Poetic v1.0 Schematic PDF FPGA-Rack v1.0 UCF Files There are different FPGA mounted: Spartan 6 XC6SLX45, Spartan 6 XC6SLX100, Spartan 6 XC6SLX150


Features

  • 1 Ethernet Port
  • USB FTDI
  • Spartan 6 LX45 - LX100 - LX150
  • 2x4 Leds
  • 4 User Switches
  • 3 Buttons
  • 100.0MHz Main Clock
  • VME connector 3x32Pin compatible with POETIC Rack backplane
  • 2 Mezzanine Connector ARM-EBS and FPGA-EBS compatible
  • Powered by USB or VME Power

Analog to digital converters

The mezzanine board holds 20 ADS7886 analog to digital converters.

These are 12 bit converters with a maximal sampling rate of 1 MHz.

Actually Channel 6, 7, 8, 9, 10, 12, 13, 14 and 15 don't work (Probably due to propagation delay with SCLK)

Digital to analog converters

The mezzanine board holds 2 DAC124S085 quad analog to digital converters, allowing for 8 analog output channels.

These are quad 12 bit converters with a maximal sampling rate of 1.8 MHz if only one channel is used. The sampling rate drops to 460 kHz when all 4 channels are used.

Programmation

V1.0 is only programmable via JTAG.

Links

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