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h1. *2.3 NI myRIO*

The National Instruments myRIO-1900 is an embedded portable Reconfigurable I/O (RIO) system. The NI myRIO-1900 provides analog input (AI), analog output (AO), digital input and output (DIO), audio, and power output in a compact embedded device. The NI myRIO-1900 connects to a host computer over USB and wireless 802.11b,g,n.

p=. !{width: 50%}https://sourceforge.isae.fr/attachments/download/1822/NI_myRio_1900.png(NI myRIO Schematic)!

_Figure 2.4 NI myRIO 1900_

h2. *2.3.1 NI myRIO Characteristics*

The myRio uses a Xilinx Z-7010 processor with 2 cores at 667MHz each. A NVM (non-volatile memory) of 256MB and a DDR3 memory of 512MB with a clock frequency of 533MHz and a 16bit data bus. The USB host and device ports are 2.0 Hi-Speed ports. The Audio Input is a one stereo input consisting of two AC-coupled single-ended channels. Input impedance is 10kΩ at DC with a nominal range of ±2.5 and a bandwidth at 2Hz to 20KHz as expected for audio.

The NI myRIO-1900 has analog input channels on myRIO Expansion Port (MXP) connectors A and B, Mini System Port (MSP) connector C. MXP connectrores carry  identical sets of signals.

p=. !{width: 50%}https://sourceforge.isae.fr/attachments/download/1823/IO_DIO_myRio.png(myRIO MXP)!

_Figure 2.5 NI myRIO MXP_

|\2=._Table 2.1_ NI myRIO 1900|

|Processor Type | Xilinx Z-7010              |

|Processor Speed        |   667MHz        |

|Processor Cores            |2 |

|NVM Memory            | 256MB |

|DDR3 Memory | 512MB |

|DDR3 Clock Frequency| 533MHz|

|DDR3 Data Bus|	16bits|

|Wireless Radio mode|	IEEE 802.11 b,g,n|

|Frequency Band|2.4 GHz|

|Audio Input| Stereo with 2 AC-coupled

single-ended channels|

|Input Impedance| 10KΩ|

|Nominal Range| ±2.5V|

|Bandwidth| 2Hz to 20KHz|

The Figure below shows the signals on Mini System Port (MSP) connector C.

p=. !{width: 50%}https://sourceforge.isae.fr/attachments/download/1824/IO_myRio_msp.png(myRIO MSP)!

_Figure 2.6 NI myRIO MSP_

h2. *2.3.2 References*

[1] "User Guide and Specifications - NI myRIO 1900":http://www.ni.com/pdf/manuals/376047a.pdf