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User’s Guide
April 2003
SBAU086
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IMPORTANT NOTICE Texas 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 orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the t
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EVM IMPORTANT NOTICE Texas 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 EVALUATION PURPOSES ONLY 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 required design-, marketing-, and/or manufacturing-related protective considerations, including product safety measures typically found in the end product
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EVM WARNINGS 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 prior to connecting the input power. Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damag
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Contents Preface About This Manual This users guide describes the function and operation of the MSC1211EVM. 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 MSC1211. A complete circuit description, as well as schematic diagram and bill of materi- als, is included. How to Use This Manual This manual begins with an introductory chapter which describes the EVM and what it can do. If you’re
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Contents Related Documentation From Texas Instruments Data Sheets: Literature Number: MSC1211 SBAS267 REG1117–5.0,–3.3 SBVS001 ADS8325 SBAS226 MAX3243CPWR SLLS350 TPS3837L30DBVT,TPS3838L30DBVT SLVS292 SN74HC573ADW SCLS147 SN74AC10PWR SCAS529 SN74AHC1G08DBVR SCLS3141 SN74AHC138PWR SCLS2581 FCC Warning This equipment is intended for use in a laboratory test environment only. It gen- erates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of compu
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Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.1 MSC1211 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2 EVM System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.3 Analog Inputs . . . . . . . . . . . . . . . .
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Contents 1–1. MSC1211EVM Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 2–1. RIDE (Raisonance Integrated Development Environment) . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 2–2. Tool Advanced Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 4–1. Processor Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Chapter 1 This chapter provides an overview of the MSC1211 evaluation module and software. Topic Page 1.1 MSC1211 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2 EVM System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.3 Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.4 Prototyping Area . . . . . . . . . . . .
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MSC1211 Description 1.1 MSC1211 Description The MSC1211 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 MSC1211 enables the device to achieve 22 bits of effective resolution (0.45 ppm RMS noise) at a data rate of 10Hz. It can be programmed for other data rates up to 1kHz that have lower effective resolution. In additio
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Analog Inputs 1.3 Analog Inputs Analog input is supplied through the ten–way screw terminal block, J4. The nine inputs are connected to the MSC1211 through a 100Ω resistor. There is also a terminal block for AGND. The inputs have the 100Ω resistors to provide minimal protection against overvoltage. 1.4 Prototyping Area A prototyping area is provided on the MSC1211EVM. This may be used to in- corporate additional circuitry, such as special reference or conditioning cir- cuits, into the system. Al
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Chapter 2 This chapter guides you through unpacking the MSC1211EVM and setting it up so you can begin working with it immediately. Topic Page 2.1 Unpacking the MSC1211EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.2 Default Configration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.3 Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
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Unpacking the MSC1211EVM 2.1 Unpacking the MSC1211EVM After unpacking the MSC1211EVM kit, check to make sure you received all of the items listed here: MSC1211EVM 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 MSC1211EVM operation is controlled by the host PC, some configuration must be done directly on the board, using four jumpers (shorting blocks). The MSC1211EVM is configured
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Quick Start 2.3 Quick Start Once the MSC1211EVM has been unpacked from its shipping container, and you have verified that the board is configured as shown in Table 2–1, it can be powered on and tested. First, connect the board to the host PC using the supplied 9-pin serial cable. Then, power the board on by plugging the wall power adapter into a suitable ac power source and plugging the barrel plug into the barrel jack (J6) on the MSC1211EVM. (You do not have to connect the serial cable first; i
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Quick Start Figure 2–1. RIDE (Raisonance Integrated Development Environment) Refer to the RIDE documentation and help menus for more information about how to interact with the RIDE environment. When a program is compiled, it can be immediately downloaded into the MSC1211EVM by using the MSC down- load utility program. In the Project menu, select Options Tools, and then Create or Edit MSC1210_LOADER. Enter the path to the download.exe program that should be installed in your Windows directory. T
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Quick Start Figure 2–2. Tool 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 operand list is defined in Table 2–3. Table 2–3.Downloader Operand Definitions Operand Definition /Ffile hex file, {NODE3} in the RIDE will substitute the hex file (required) /Xf
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Chapter 3 This chapter describes each function of the MSC1211EVM, and how to use the accompanying software to program and use the MSC1211. Topic Page 3.1 Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3.2 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 3.3 I/O Connectors and Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Jumpers 3.1 Jumpers Table 3–1 shows the function of each jumper on the EVM. Table 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 2 JMP3 1 to 2 Connect I C SDA signal Disconnected 3.1.3 2 JMP4 1 to 2 Connect I C SCL signal Disconnected 3.1.4 JMP5 1–2 3.1.5 1 to 2 Onboard AV DD 2 to 3 External AV DD JMP6 1 to 2 Onboard DV 1–2 3.1.6 DD 2 to 3
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Jumpers 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. 2 3.1.3 JMP3: I C Data SDA Enable 2 The MSC1211 uses the same signals for SPI and I C. Since there is no chip 2 select available for the I C device, this jumper w
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Switches 3.2 Switches 3.2.1 RESET Switch Switch SW1 is a miniature pushbutton that, when pressed, forces the MSC1211 RST line high. When released, the MSC1211 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 INT Switch Switch SW2 is a miniature pushbutton that, when pressed, shorts Port 3.2 to ground. This pin is the INT0 pin and, therefore, can be setup to cau
