DS2777K Maxim Integrated, DS2777K Datasheet
DS2777K
Related parts for DS2777K
DS2777K Summary of contents
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... Evaluation Board 1 pc. DS9123O USB Adapter 1 pc. RJ11 Cable Windows registered trademark of Microsoft Corp. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. DS2775–DS2778 Evaluation Kits ♦ ...
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... B2 BOARD BATTERY B2 Figure 2a. Charging Circuit P+ B1+ + BATTERY DS2775K B1- - DS2776K DS2777K DS2778K B2 BOARD BATTERY B2 Figure 2b. Discharging Circuit 2 _______________________________________________________________________________________ B1+ Note: In the following sections, software-related items are identified by bolding. Text in bold refers to items B1- directly from the EV kit software. Text in bold and underlined refers to items from the Windows operating system ...
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Figure 3. Select Preferences Window Selecting the Communication Port If the DS9123O is connected when the DS2775– DS2778 EV kits start, the software starts up automati- cally not connected, the Select Preferences window opens (Figure 3). In ...
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DS2775–DS2778 Evaluation Kits Figure 6. Status Register Figure 7. Communication Menu The present state of all register bits is displayed imme- diately upon opening the register window. R/W loca- tions contain a selection field or command button to allow the ...
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... DS2775–DS2778 get out of sync, simply left-click on Detect Device to match the software’s communication to the device. The Tools menu (Figure 8) provides two methods to evaluate the SHA-1 calculations: a method to view the software-computed MAC and a method to view the SHA-1 calculator. Left-clicking on the Show Software Computed MAC menu item expands the main window to show the MAC computed by the software ...
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... Figure 10. Preferences Menu Figure 11. Help Menu Selecting the About topic from the Help menu (Figure 11) opens a window containing information about the current revision of this program and Maxim Integrated Products, Inc. Program Tabs All program functions are divided under four tabs in the main program window ...
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Figure 12. Parametric Data Subtab Figure 13. Set Accumulated Current Register _______________________________________________________________________________________ DS2775–DS2778 Evaluation Kits The present state of the PIO pin is shown in text. The Set/Clear PIO bit button sets or clears the PIO bit in the Special ...
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DS2775–DS2778 Evaluation Kits Figure 14. Set Accumulation Bias Register The user can bring up the Set Accumulation Bias Register window (Figure 14) by left-clicking the Acc Bias button. This window allows the user to enter val- ues for the Accumulation ...
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Figure 16. Fuel Gauge Data Tab Figure 17. Scalar Register _______________________________________________________________________________________ DS2775–DS2778 Evaluation Kits The user can bring up the Set Age Scalar window (Figure 17) by left-clicking the Update button in the Scalar area of the Fuel Gauge Data ...
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DS2775–DS2778 Evaluation Kits Figure 18. SHA-1 Tab Figure 19. The Secret Figure 20. The ROM ID 10 ______________________________________________________________________________________ The DS2776/DS2778 use an 8-byte Secret, the 8-byte ROM ID code of the device, and an 8-byte Challenge to generate a 20-byte ...
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... The user can view the software-computed MAC by selecting Show Software Computed MAC from the Tools menu (Figure 8). The user also can compute the MAC with the DS2776/DS2778, then change one bit in one of the text boxes of the secret, and then compute the MAC with software to see how big of a difference changing one bit makes ...
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DS2775–DS2778 Evaluation Kits Figure 24. Application Units Tab If the MAC is “Not Verified,” make sure that the chal- lenge was written prior to computing the MAC. If the “Not Verified” error continues, perhaps the secret in the device does ...
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Figure 25. Device Units Tab These functions do not directly write or read the DS2775–DS2778 still necessary for the user to store or recall this information to or from the device by clicking the Write & Copy or ...
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DS2775–DS2778 Evaluation Kits Figure 26. Memory Tab The Net Address subtab allows the user to perform a Search Net Address command to find all the 1-Wire devices on the 1-Wire bus. All devices found on the bus are listed in ...
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Figure 27. Log Data Tab The Log to File subtab contains control information for storing all data to an ASCII file. The default file name is c:\DS277xK_datalog.txt, but can be modified in the Filename text field. The Stop Logging button ...
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DS2775–DS2778 Evaluation Kits Figure 28. DS2775–DS2778 EV Kit Schematic 16 ______________________________________________________________________________________ ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 17 © 2009 Maxim Integrated Products DS2775– ...