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Содержание ZC702 Si570

Страница 1: ...November 2014 ZC702 Si570 Programming XTP181 ...

Страница 2: ...he Information or to advise you of any corrections or updates Xilinx expressly disclaims any liability in connection with technical support or assistance that may be provided to you in connection with the Information XILINX MAKES NO OTHER WARRANTIES WHETHER EXPRESS IMPLIED OR STATUTORY REGARDING THE INFORMATION INCLUDING ANY WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE OR NONINFR...

Страница 3: ...Si570 Programming Overview Xilinx ZC702 Board Software Requirements Setup for the ZC702 Si570 Programming Programming the Si570 Calibrating the Frequency References Note This presentation applies to the ZC702 ...

Страница 4: ...02 board has a Silicon Labs Si570 Programmable Oscillator that defaults to 156 25 MHz Via the IIC bus the frequency of this device can be changed This tutorial shows how to change the output frequency of this device Note Presentation applies to the ZC702 ...

Страница 5: ...Xilinx ZC702 Board ...

Страница 6: ...Vivado Software Requirements Xilinx Vivado Design Suite 2014 4 Design Edition SDK Combined installer Note Presentation applies to the ZC702 ...

Страница 7: ...o Micro B cable to the USB JTAG Digilent connector on the ZC702 board Connect this cable to your PC Set the JTAG Select Switch SW10 to 01 If using a Platform Cable USB II JTAG Cable set SW10 to 10 Note Presentation applies to the ZC702 ...

Страница 8: ...tup Connect a USB Type A to Mini B cable to the USB UART connector on the ZC702 board Connect this cable to your PC Power on the ZC702 board for UART Drivers Installation Note Presentation applies to the ZC702 ...

Страница 9: ...ZC702 Setup Install USB UART Drivers Refer to UG1033 for details on installing the USB to UART Drivers Note Presentation applies to the ZC702 ...

Страница 10: ...ZC702 Setup Reboot your PC if necessary Right click on My Computer and select Properties Select the Hardware tab Click on Device Manager Note Presentation applies to the ZC702 ...

Страница 11: ...ZC702 Setup Expand the Ports Hardware Right click on Silicon Labs CP210x USB to UART Bridge and select Properties Note Presentation applies to the ZC702 ...

Страница 12: ...ZC702 Setup Under Port Settings tab Click Advanced Set the COM Port to an open Com Port setting from COM1 to COM4 Note Presentation applies to the ZC702 ...

Страница 13: ... Refer to UG1036 regarding Tera Term installation Board Power must be on before starting Tera Term Start the Terminal Program Select your USB Com Port Set the baud to 115200 Note Presentation applies to the ZC702 ...

Страница 14: ...Si Labs Programmable Oscillator Calculator Download and install ProgOscillatorSwInstall zip Note Presentation applies to the ZC702 ...

Страница 15: ...ramming Unzip the ZC702 Si570 Programming Design Files 2014 4 C ZIP file Available through http www xilinx com zc702 It is recommended to unzip these design files to C for SDK compatibility Note Presentation applies to the ZC702 ...

Страница 16: ... Si570 Programming Download the Si570 bitstream and ELF files In a Windows CMD prompt type cd C zc702_si570_programming ready_for_download zc702_si570 bat Note AR47530 has been applied to the download script ...

Страница 17: ...a scope to J63 PMOD1 pins 4 and 6 to measure the frequency Si570 Power on frequency is 156 25 MHz Frequency is divided by 10 in the Zynq PL Measured frequency on these two pins will be 15 625 MHz Note Presentation applies to the ZC702 ...

Страница 18: ...lator Calculator To use the SiLabs calculator the correct fXTAL value for each Si570 must be determined using this equation For this equation Fout 156 25 the preprogrammed frequency of the Si570s on the ZC702 We need to determine RFREQ HSDIV N1 These can be found by reading back the registers on the Si570 Note Presentation applies to the ZC702 ...

Страница 19: ... The terminal window shows the current register settings for the Si570 The power on values will appear in the terminal window Note the value of 0x01C2BBFFFBA4 Note The values reported by your Si570 may differ from those shown ...

Страница 20: ...ZC702 Si570 Programming The value 0x01C2BBFFFBA4 corresponds to the contents of the Si570 s registers 7 to 12 Note Presentation applies to the ZC702 ...

Страница 21: ...ZC702 Si570 Programming Extract the HS_DIV and N1 values from 0x01C2BBFFFBA4 HS_DIV 0b000 which corresponds to 4 N1 0b0000111 which corresponds to 8 Note Presentation applies to the ZC702 ...

Страница 22: ...ZC702 Si570 Programming Extract the RFREQ value from 0x01C2BBFFFBA4 02BBFFFBA4 Note Presentation applies to the ZC702 ...

Страница 23: ...ZC702 Si570 Programming Open the Window Calculator Set to Scientific and Hex mode Note Presentation applies to the ZC702 ...

Страница 24: ...ZC702 Si570 Programming Enter or paste the RFREQ value 02BBFEA811 Convert it to Decimal Note Presentation applies to the ZC702 ...

Страница 25: ...ZC702 Si570 Programming Divide by 2 28 This is the value for RFREQ Note Presentation applies to the ZC702 ...

Страница 26: ...ZC702 Si570 Programming For this equation Fout 156 25 RFREQ 43 74999584257602691650390625 HSDIV 4 N1 8 Fout x HSDIV x N1 5000 fXTAL 5000 RFREQ Note Presentation applies to the ZC702 ...

Страница 27: ... Si570 Programming For this equation Divide 43 74999584257602691650390625 by 5000 Take the reciprocal fXTAL 114 28572514592488006627271464555 Ctrl C to copy this value Note Presentation applies to the ZC702 ...

Страница 28: ...ZC702 Si570 Programming Open the SiLabs Programmable Oscillator Calculator Select the Si570 and click OK Note Presentation applies to the ZC702 ...

Страница 29: ...ZC702 Si570 Programming Select Options Advanced ...

Страница 30: ...02 Si570 Programming Paste in the value of fXTAL The calculator will round the number appropriately This allows us to calibrate the Si570 to a new frequency Click OK Note Presentation applies to the ZC702 ...

Страница 31: ...ZC702 Si570 Programming Enter 156 25 under Definition and click the Apply Definition button ...

Страница 32: ...ZC702 Si570 Programming Set the new frequency to 200 MHz and click the Create Example button ...

Страница 33: ...Programming Under the summary tab the new register configurations are shown The startup register configurations will vary slightly from the actual device power on programming Note Presentation applies to the ZC702 ...

Страница 34: ...ZC702 Si570 Programming Press a key to begin entering the newly calculated values When done press w Note Presentation applies to the ZC702 ...

Страница 35: ...ZC702 Si570 Programming Si570 has been successfully updated Note Presentation applies to the ZC702 ...

Страница 36: ...ZC702 Si570 Programming Measured frequency will be 20 00 MHz Note Presentation applies to the ZC702 ...

Страница 37: ...References ...

Страница 38: ...References Silicon Labs Si570 Data Sheet http www silabs com Support 20Documents TechnicalDocs si570 pdf ...

Страница 39: ...Documentation ...

Страница 40: ...00 SoC ZC702 Evaluation Kit http www xilinx com products boards and kits EK Z7 ZC702 G htm ZC702 Hardware User Guide UG850 http www xilinx com support documentation boards_and_kits zc702_zvic ug850 zc702 eval bd pdf ZC702 Getting Started Guide UG926 http www xilinx com support documentation boards_and_kits zynq 7000 zc702_gsg v3_0 UG926_Z7_ZC702_Eval_Kit pdf ...

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