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| Specifications | |
| Business section |
| Specifications | |
| Outline | 1. Annex: XE8000EV121 board layout |
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| Content | October 2008 ©2008 Semtech Corp. TN8000.35 www.semtech.comPage 1 ST0002_01_US ADVANCED COMMUNICATIONS & SENSINGTechnical Note XE8000EV121 Firmware Programming Evaluation board for SX8723/24/25 Introduction The onboard microcontroller is a gateway providing translation between UART (computer side) and I2C (SX87xx side). Some communication problems may occur due to wrong manipulation on the board, this document describes how to re-program the firmware. The XE8000EV121 gateway firmware is available on Semtech web site, or by request at this e-mail address: support_sensing@semtech.com Recommended reading: XE8000EV121 User Guide Programming procedure 1. Connect the board Connect the board to your USB port, and then switch on the XE8000EV121 using the Power switch (top left side of the board). Note:Ensure that the jumper at the right of the power switch is either connected on 3.3V or 5V_USB. For more information on how to determine which Serial COM port has been assigned please refer to the XE8000EV121 User Guide. 2. Set the PIC Gateway in programming mode The gateway program (br10) jumper allows the user to programme the onboard PIC16F877A. By default, the jumper is not connected. Figure 1. Gateway program jumper On the board, shortcut the br10 jumper and press the Reset button. Now the chip is set in programming mode. After the reset, the shortcut of br10 jumper is not necessary. 3. Start the Graphical User Interface Once the board is connected launch the GUI from Windows Start Menu->Programs->SX87xx->SX87xx and the GUI main window will open. 4. Open the programming window Select the Serial COM port corresponding to your XE8000EV121 board on the GUI toolbar. Don’t click on the Open button. Only select the correct port. Figure 2. COM port selection Press the Ctrl+Alt+P on the keyboard to open a programming window. 5. Program the firmware Click on the Browse button and select the firmware to upload in the microcontroller. The default file name is gateway.hex. Figure 3. Programming window Click the Update button to program the microcontroller. After a few seconds, if the programming has been done correctly a message appears: The gateway has been updated succesfully. Figure 4. Successful programming Port COM |
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| Following Datasheets | tn8722_01_us (24 pages) TorontoCA_CaseStudy_1 (5 pages) toronto_location_2 (1 pages) tosemi_5 (3 pages) tosemi_120910 (2 pages) tr1pc_cd (1 pages) tr2a_cd (1 pages) TriCore_Family-br-2012-3 (58 pages) TRSF_XLRM_CD (1 pages) TRS_TRS_CD (1 pages) |
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