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Manual de instrucciones Texas Instruments MSC1211

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Summary
  • Texas Instruments MSC1211 - page 1

                    April 2003 User ’ s G uide SBAU086 ...

  • Texas Instruments MSC1211 - page 2

    IMPORT ANT NOTICE T exas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orde ...

  • Texas Instruments MSC1211 - page 3

    EVM IMPORT ANT NOTICE T exas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EV ALUA TION PURPOSES ONL Y and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms of ...

  • Texas Instruments MSC1211 - page 4

    EVM W ARNINGS AND RESTRICTIONS It is important to operate this EVM within the specified input and output ranges described in the EVM User ’ s Guide. Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions concerning the input range, please contact a TI field representative p ...

  • Texas Instruments MSC1211 - page 5

    Contents iii Contents Preface  About This Manual This users guide describes the function and operation of the MSC121 1EVM. This manual will help you quickly set up the evaluation module and its accom- panying software, so that you can rapidly test and evaluate the MSC121 1. A complete circuit description ...

  • Texas Instruments MSC1211 - page 6

    Contents iv Related Documentation From T exas Instruments Data Sheets: Literature Number: MSC121 1 SBAS267 REG1 1 17 – 5.0, – 3.3 SBVS001 ADS8325 SBAS226 MAX3243CPWR SLLS350 TPS3837L30DBVT ,TPS3838L30DBVT SL VS292 SN74HC573ADW SCLS147 SN74AC10PWR SCAS529 SN74AHC1G08DBVR SCLS3141 SN74AHC138PWR SCLS2581 FCC Warning This equipment is intended for ...

  • Texas Instruments MSC1211 - page 7

    Contents v Contents  1 Introduction 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 MSC121 1 Description 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 EVM S ...

  • Texas Instruments MSC1211 - page 8

    Contents vi  1 – 1. MSC121 1EVM Block Diagram 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 1. RIDE (Raisonance Integrated Development Environment) 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 2. T ool Advanced Options 2-5 . . . . . . . . . . . . ...

  • Texas Instruments MSC1211 - page 9

    1-1 Introduction  This chapter provides an overview of the MSC121 1 evaluation module and software. T opic Page 1.1 MSC121 1 Description 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 EVM System Overview 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Texas Instruments MSC1211 - page 10

    MSC121 1 Description 1-2 1.1 MSC121 1 Description The MSC121 1 is a precision 24-bit delta-sigma analog-to-digital converter (ADC) with an 8051 microcontroller , and up to 32K of flash memory . It has eight differential/single-ended analog inputs. The delta-sigma architecture employed in the MSC121 1 enables the device to achieve 22 bits of effecti ...

  • Texas Instruments MSC1211 - page 11

    Analog Inputs 1-3 Introduction 1.3 Analog Inputs Analog input is supplied through the ten – way screw terminal block, J4. The nine inputs are connected to the MSC121 1 through a 100 Ω resistor . There is also a terminal block for AGND. The inputs have the 100 Ω resistors to provide minimal protection against overvoltage. 1.4 Prototyping Area ...

  • Texas Instruments MSC1211 - page 12

    2-1 Getting Started   This chapter guides you through unpacking the MSC121 1EVM and setting it up so you can begin working with it immediately . T opic Page 2.1 Unpacking the MSC121 1EVM 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 Default Configration 2-2 . . . . . . . . . ...

  • Texas Instruments MSC1211 - page 13

    Unpacking the MSC121 1EVM 2-2 2.1 Unpacking the MSC121 1EVM After unpacking the MSC121 1EVM kit, check to make sure you received all of the items listed here: - MSC121 1EVM board - 9V “ wall – wart ” power supply - 9-pin, D-sub, male-female serial cable - This user ’ s guide - Software CD-ROM 2.2 Default Configuration Although much of the M ...

  • Texas Instruments MSC1211 - page 14

    Quick Start 2-3 Getting Started 2.3 Quick Start Once the MSC121 1EVM has been unpacked from its shipping container , and yo u have verified that the board is configured as shown in T able 2 – 1, it can be powered on and tested. First, c onnect t he b oard t o t he h ost P C u sing t he s upplied 9 -pin s erial c able. T hen, power the board on by ...

  • Texas Instruments MSC1211 - page 15

    Quick Start 2-4 Figure 2 – 1. RIDE (Raisonance Integrated Development Environment) Refer to the RIDE documentation and help menus for more information about ho w to interact with the RIDE environment. When a program is compiled, it can be immediately downloaded into the MSC121 1EVM by using the MSC down- load utility program. In the Project menu, ...

  • Texas Instruments MSC1211 - page 16

    Quick Start 2-5 Getting Started Figure 2 – 2. T ool Advanced Options UnCheck the Prompt before running box. All operands should immediately follow the switch character with no spaces except between options. i.e.: /F{NODE3}.hex /X22 /P1 /H /T If the filename, crystal frequency , or port are not included, a screen will prompt for the values. The op ...

  • Texas Instruments MSC1211 - page 17

    3-1 Operation  This chapter describes each function of the MSC121 1EVM, and how to use the accompanying software to program and use the MSC121 1. T opic Page 3.1 Jumpers 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 Switches 3-4 . . . . . . . . . . . . . ...

  • Texas Instruments MSC1211 - page 18

    Jumpers 3-2 3.1 Jumpers T able 3 – 1 shows the function of each jumper on the EVM. T able 3 – 1. Jumper/Function Reference Reference Designator Setting/Pin Function Default Subsection JMP1 1 to 2 Short R1 for IDAC0 output Disconnected 3.1.1 JMP2 1 to 2 Short R2 for IDAC1 output Disconnected 3.1.2 JMP3 1 to 2 Connect I 2 C SDA signal Disconnecte ...

  • Texas Instruments MSC1211 - page 19

    Jumpers 3-3 Operation 3.1.1 JMP1: Short R1 In order to allow current output IDAC0 to have full compliance, JMP1 can be used to short out resistor R1, which is in series with that signal. 3.1.2 JMP2: Short R2 In order to allow current output IDAC0 to have full compliance, JMP2 can be used to short out resistor R2, which is in series with that signal ...

  • Texas Instruments MSC1211 - page 20

    Switches 3-4 3.2 Switches 3.2.1 RESET Switch Switch SW1 is a miniature pushbutton that, when pressed, forces the MSC121 1 RST line high. When released, the MSC121 1 enters a reset cycle. If communication becomes disrupted between the host and the board, or the board is unresponsive, pressing RESET will return the system to normal op- eration. 3.2.2 ...

  • Texas Instruments MSC1211 - page 21

    Switches 3-5 Operation 3.2.5 SW5: Emulation and Control Switch SW5 provides the means to break several signals so that they can be con- trolled by an emulator plugged into J14. This switch also provides a means of setting the operating mode of the MSC121 1. T able 3 – 3. SW5: Configuration Control Switch Switch number Function 1 Enables the /RD s ...

  • Texas Instruments MSC1211 - page 22

    I/O Connectors and Signals 3-6 3.3 I/O Connectors and Signals The various connectors on the MSC121 1EVM are described in this section. 3.3.1 J8: Serial0 RS-232 Connector The host PC communicates with the MSC121 1EVM through this connector , which is a D-shell type, 9-pin female, pinned out in the usual manner . Some of the flow control lines are us ...

  • Texas Instruments MSC1211 - page 23

    I/O Connectors and Signals 3-7 Operation 3.3.2 J9: Serial1 RS-232 Connector This connector is available for use with the second UART in the MSC121 1. Only the TD and RD lines are used. The DTR pin is connected to the DSR pin, and the RTS pin is connected to the CTS pin. In the RS-232 electrical specification, – 5V to – 15V on a line indicates a ...

  • Texas Instruments MSC1211 - page 24

    I/O Connectors and Signals 3-8 3.3.3 J6, JMP5, JMP6, B1: Power Connectors The MSC121 1EVM features a flexible power supply . Externally generated power , the onboard regulator circuitry and supplied wall-wart, or a 9V battery ca n all be used to supply power . Furthermore, the separated analog and digital power supplies can be powered dif ferently; ...

  • Texas Instruments MSC1211 - page 25

    I/O Connectors and Signals 3-9 Operation 3.3.4 J4: Analog Inputs T erminal block J4 is the main analog input to the MSC121 1EVM, as is defined in T able 3 – 8. One terminal is provided for each of the nine MSC121 1 dif feren- tial i nputs. Each terminal is connected to the MSC121 1 through a 1k Ω resistor . T able 3 – 8. J4: Analog Inputs T e ...

  • Texas Instruments MSC1211 - page 26

    I/O Connectors and Signals 3-10 3.3.6 TP1–6: T est Points The test points can be used to monitor certain signals on the board. For information on the signals connected directly to the MSC121 1, consult the MSC121 1 datasheet (SBAS267) located at www .ti.com. T able 3 – 10. TP1 – 6: T est Points T est Point Designator MSC121 1 Pin Number MSC12 ...

  • Texas Instruments MSC1211 - page 27

    Circuit Descriptions 3-1 1 Operation 3.4 Circuit Descriptions The MSC121 1EVM combines the MSC121 1 microcontroller , 128K RAM, the ADS8325, 256K EEPROM, a 22.1 184MHz crystal, support for two serial ports, and other support circuits to aid in the evaluation of the MSC121 1. 3.4.1 MSC121 1 The MSC121 1 (U5) is clocked by the 22.1 184MHz crystal osc ...

  • Texas Instruments MSC1211 - page 28

    4-1 Physical Description   This chapter contains the schematic drawings and PCB layouts for the MSC121 1EVM board. T opic Page 4.1 Schematics 4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2 Component Locations 4-4 . . . . . . . . . ...

  • Texas Instruments MSC1211 - page 29

    Schematics 4-2 4.1 Schematics Figure 4 – 1. Processor Schematic ...

  • Texas Instruments MSC1211 - page 30

    Schematics 4-3 Physical Description Figure 4 – 2. Power and Analog Inputs Schematic ...

  • Texas Instruments MSC1211 - page 31

    Component Locations 4-4 4.2 Component Locations Figure 4 – 3. Printed Circuit Board Layout ...

  • Texas Instruments MSC1211 - page 32

    Power-Supply CE Certification 4-5 Physical Description 4.3 Power-Supply CE Certification ...

  • Texas Instruments MSC1211 - page 33

    Bill of Materials 4-6 4.4 Bill of Materials T able 4 – 1. Bill of Materials Item No. Quantity V alue Designator Description V endor Part Number 1 13 100 Ω R1 – R1 1, R32, R33 1/10W 5% chip resistor Panasonic ERJ – 6GEYJ101V 2 4 390 Ω R14 – R17 1/16W 5% chip resistor Panasonic ERJ – 3GEYJ391V 3 2 1k Ω R19, R27 1/16W 5% chip resistor ...

  • Texas Instruments MSC1211 - page 34

    Bill of Materials 4-7 Physical Description T able 4 – 1. Bill of Materials (continued) Item No. Part Number V endor Description Designator V alue Quantity 19 1 SP1 Piezoelectric ceramic buzzer Panasonic EFB – AA14D001 20 1 X1 22.1 184MHz quartz crystal thru-hole Citizen HC49US22.1 1840592MABJ Not installed 1 X2 5V 22.1 184MHz programmable oscil ...

  • Texas Instruments MSC1211 - page 35

    Bill of Materials 4-8 T able 4 – 1. Bill of Materials (continued) Item No. Part Number V endor Description Designator V alue Quantity Not installed 2 J14 1 x 15 single row socket .050 ′′ spacing Mill-Max 851 – 93 – 050 – 10 – 001 (15) Not installed 1 J15 1 x 8 header, 0.1 ′′ spacing Samtec TSW – 108 – 07 – L – D 40 3 J5, J ...

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