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reference:add-ons:dmm-shield:reference-manual [2018/07/02 12:58]
Bianca Peterlin [Additional Information]
reference:add-ons:dmm-shield:reference-manual [2018/07/02 16:18] (current)
Arthur Brown
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 ====== DMM Shield Reference Manual ====== ====== DMM Shield Reference Manual ======
  
-The DMM Shield is a 5 1/2 Digit digital multimeter, designed for use with Digilent microcontroller boards and FPGA boards that are equipped with the Arduino shield header, see [[#​compatible_boards|Compatible Boards]] +The DMM Shield is a 5 1/2 Digit digital multimeter, designed for use with Digilent microcontroller boards and FPGA boards that are equipped with the Arduino shield header, see [[#​compatible_boards|Compatible Boards]]The shield is built around the [[http://​www.hycontek.com/​wp-content/​uploads/​DS-HY3131_EN.pdf|HY3131]] module from Hycon Technology, which is an analog front end DMM dedicated chip. 
-The shield is built around the [[http://​www.hycontek.com/​wp-content/​uploads/​DS-HY3131_EN.pdf|HY3131 ]] module from Hycon Technology, which is an analog front end DMM dedicated chip. +
 The device has 7 measurements functions (AC/DC Voltage, AC/DC Current, Resistance, Diode, Continuity) and is factory calibrated. It can be used out of the box with the compatible system boards. The device has 7 measurements functions (AC/DC Voltage, AC/DC Current, Resistance, Diode, Continuity) and is factory calibrated. It can be used out of the box with the compatible system boards.
  
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 For more information please see the library documentation for each platform [[:​reference:​add-ons:​dmm-shield:​zynqlibraryuserguide|ZYNQ]] or [[:​reference:​add-ons:​dmm-shield:​pic32libraryuserguide|Digilent Microcontroller boards]]. For more information please see the library documentation for each platform [[:​reference:​add-ons:​dmm-shield:​zynqlibraryuserguide|ZYNQ]] or [[:​reference:​add-ons:​dmm-shield:​pic32libraryuserguide|Digilent Microcontroller boards]].
 +
 ==== EEPROM Memory ==== ==== EEPROM Memory ====
-The DMM Shield is equipped with a non-volatile EEPROM memory chip: Microchip ​93LC66BT(see [[http://​ww1.microchip.com/​downloads/​en/​DeviceDoc/​21795E.pdf]]), ​having ​512 bytes/256 words (4kbits) available space. +The DMM Shield is equipped with a non-volatile EEPROM memory chip from Microchip: 93LC66BT [[http://​ww1.microchip.com/​downloads/​en/​DeviceDoc/​21795E.pdf|datasheet]] available from Microchip'​s website ​), which has 512 bytes/256 words (4kbits) available space. The memory can be accessed over a custom SPI protocol, using digital IO pins exposed in the DMM Shield connector: CS_EEPROM (EEPROM SPI chip select), DO (SPI MISO), DI (SPI MOSI) and CLK (SPI CLK).
-The memory can be accessed over a custom SPI protocol, using digital IO pins exposed in the DMM Shield connector: CS_EEPROM (EEPROM SPI chip select), DO (SPI MISO), DI (SPI MOSI) and CLK (SPI CLK).+
  
 While the chip select line is specific to EEPROM module, the SPI lines (data and clock) are shared with the DMM device. While the chip select line is specific to EEPROM module, the SPI lines (data and clock) are shared with the DMM device.