MICRF50x User Manual for RF TestBench SW V. 0.5
Contents
1. Wanted Single Sided Dev and the frequency for 1 will be Wanted RF Frequency Wanted Single Sided Dev e Wanted Comp Freq o Enter the wanted comparison frequency in kHz here e Wanted SC Cutoff o Enter the wanted cut off frequency for the switch cap filter here Tolerance When calculating the control word it may be that the Wanted values are not completely found The tolerances used in the calculations are Wanted Bit rate No tolerance the nearest value is used Wanted RF Frequency 200kHz Wanted Single Sided Dev 10 Wanted Comp Freq 25 Wanted SC Cutoff No tolerance is used the lowest value gt the wanted value is used or the maximum achievable value Output Fields e Achieved Bit rate o Note that achieved bit rate may differ from the wanted bit rate If a specific bit rate is wanted but not achieved Consider another xtal frequency e Achieved RF Freq o This will be the achieved frequency used in receive mode e Achieved Single Sided Dev Micrel Norway AS 7 RF TestBench User Guide SW v05 doc v1 O O If VCO modulation is selected one number is displayed here This is the achieved single sided deviation If Internal modulation switching between two sets of A N M dividers is selected two numbers are displayed These are the achieved deviation for tx 0 and tx 1 resp Achieved Comp Freq O O If VCO modulation is selected one number is displayed he2. a loop filter Main features e Quick Setup Enter parameters like xtal frequency wanted bit rate RF frequency Or select the default settings Then see what the fields in the control word should be Transfer control word to development board where it is stored in EEPROM e Complete Setup Enter fields in the control word or select the default settings Then see the resulting bit rate deviation etc Transfer control word to development board where it is stored in EEPROM e Commands to development board The set of commands to the board includes start to transmit 1010 get firmware version restart micro controller reset EEPROM and read EEPROM Micrel Norway AS 2 RF TestBench User Guide SW v05 doc v1 e Frequency Error Estimator FEE Read out the FEE for different XCO tune values or find the best XCO tune value automatically e Calculate A N M Find 1 64 frequencies or set of frequencies e Loop filter Find values of external components for the loop filter e Deviation help Get suggestions for minimum deviation and filter settings based on RF frequency xtal tolerance etc Micrel Norway AS RF TestBench User Guide SW v05 doc v1 2 Install RF TestBench The installation of RF TestBench is straightforward e Copy the included files into a separate directory If no files have exe bat extensions please rename files in the following way The 2 files having an eee extension should be renamed to hav
3. improve the best RF frequency found with gt 1kHz or else the one with the highest comparison frequency is used 3 11 FCalculate A N M Find 1 n frequencies using modulator The Calculate frequency dividers A N M Use modulator window pops up 1 or a number of frequencies max 64 can be calculated Fill in wanted frequencies etc and press the Calculate Dividers button See the results It s possible to store the results the file will be named extn xxx txt where xxx a number 000 999 Note that new results are placed below the old ones in the window A timestamp is attached 3 12 PCalculate A N M PFind 1 n frequencies using two sets of dividers The Calculate frequency dividers A N M Use two sets of dividers window pops up 1 or a number of frequencies max 64 can be calculated Fill in wanted frequencies etc and press the Calculate Dividers button See the results It s possible to store the results the file will be named intn xxx txt where xxx a number 000 999 Note that new results are placed below the old ones in the window A timestamp is attached Micrel Norway AS 14 RF TestBench User Guide SW v05 doc v1 3 13 PLoop Filter This is help for determining component values of the external loop filter 3 14 PLoop Filter Find 2nd Order Enter values and calculate 3 15 FDeviation This is help for getting an idea of what the deviation and filter settings sho
4. 1 is received Success or Error will be displayed If Error Please test communication cable power DIP switch setting and jumpers 3 9 DRF TestBench Frequency Error Estimator The Frequency Error Estimator window pops up This feature requires the use of a development board NOTE Not all development board firmware versions will support this feature Read the FEE value by pressing the Read button or by stepping XCO tune value up down Pressing the Tune button will start a process to get the best XCO tune value Before using this feature e Please read the MICRF50x user manual e Set the development board in rx on the wanted frequency and bit rate Use Quick Complete dialog press Transfer e Apply a tx signal use another development board or a signal generator Micrel Norway AS 13 RF TestBench User Guide SW v05 doc v1 3 10 FCalculate A N M This is an aid for determining frequency dividers You can use gt RF TestBench gt Quick Setup as well to find 1 frequency frequency set Note that the tolerances in the Quick Setup dialog are fixed while they are adjustable here This may give slightly different results Experiment with tolerances etc to get the frequency set you want Frequencies are calculated based on the following priorities 1 As close to the RF frequency as possible 2 As close to the comparison frequency as possible 3 Ifa RF frequency is not a 100 hit it must
5. Bench User Guide SW v05 doc v1 o The control word is stored in a file using the following naming convention rftb_xxx txt where xxx a number ranging from 000 to 999 The first not excisting number is used and a message window pops up e Import o A window pops up enter the name of the file to import rftb_xxx txt If no file name is entered or the entered file cannot be opened a message window will pop up Micrel Norway AS 9 RF TestBench User Guide SW v05 doc v1 3 7 DRF TestBench DComplete Setup The RF TestBench Complete Setup window pops up Input fields e Xtal Frequency o Enter the frequency in MHz of the xtal connected to the RF part e Fields related to the control word o These are self explaining refer to MICRF50x data sheet e General Input field o It is possible to change all bits including fixed bits by entering the address and value directly Unused bits are not editable Output Fields e Following some of the inputs an output field is included The effect or result of the selection is shown updated after Calc is pressed e Status o Messages related to the transfer of commands are displayed here After pressing Transfer Waiting will be displayed If no response from board Waiting will continue to be displayed If response from board is received Success or Error will be displayed If Error Please test communication cable power DIP switch set
6. MICRF50x User Manual for RF TestBench SW V 0 5 Doc V 1 Micrel Norway AS Strandveien 13 1366 LYSAKER Norway Tel 47 67 83 08 00 Fax 47 67 83 08 10 RF TestBench User Guide SW v05 doc v1 Table of contents 1 Titroduetonuuugsmesdadnnsetsarkanmuedaiterda e san acted Gace aaa 2 25 install RE TS Bea 4 3 Men items ANG dialog DOXES avse NN 4 PN 5 3 2 gt Setup gt Select MICRF505 or MICRF506 chip srrnrrrnvrrnrrrrrrrrrrnrrrnrrnnrrnrnn 5 33 9 Setup gt Comm nication pork s ceinen i aa E RRO RRE 5 S GRE TB ei te conn putes a A RNN 6 3 5 ARE TestBench S Overviews siuin ccd wet doapsactanenes E 6 3 60 PRE TSB SP Ouick Seuip v trawl DATAA 7 3 7 PRE TestBench gt Complete Setup co viaansokdgdnjeaebybent 10 3 8 FRF TestBench Development Board Commands srrrnnrvnrrrrrnrrrnrrnnrrrrrenne 12 3 9 RF TestBench gt Frequency Error Estimator srrrnrrnvrrnvrrnrernvrnvrrnrrrnnrrneenne 15 3 10 gt Calculate ANM teicher eet ole cols EAA nines ee mead ott 14 3 11 gt Calculate A N M gt Find 1 n frequencies using modulator 14 3 12 gt Calculate A N M gt Find 1 n frequencies using two sets of dividers 14 3 13 P 80 ML ENE deve e s g a a E E a S 15 3 14 gt Loop Filter Find 2nd Order vo 6 srs ninn E RRE 15 3 15 PT 15 3 16 DDeviation gt Deviation Select Help rrrrrnrrnrrrnvronnrnrrrnvrnnvrnnrrnrrrrrrrsrnnenne 15 Micrel Norway AS 1 RF TestBench User Guide
7. SW v05 doc v1 1 Introduction This document MICRF50x User Manual for RF TestBench describes how to set up and use RF TestBench For details on the MICRF505 MICRF506 transceiver or the MICRF505 MICRF506 development system Please refer to the appropriate data sheet For the latest updates visit the homepage of Micrel The RF TestBench should be self explaining Use this document as a reference it is not necessary to read it through before starting to use RF TestBench Also note Any calculated value in this program should be considered a suggestion When transferred to a specific application always test the RF performance Outline of this document Following this introduction a Setup chapter is given Then the different menu items and dialog boxes are described MICRF50x is a short term for MICRF505 MICRF506 Purpose of the RF TestBench RF TestBench can be used with or without a development board Users of MICRF50x radio transceiver can use the RF TestBench to calculate fields in the control word to enter into the RF chip Typical examples are e Get the complete 22 byte long control word to enter into the RF chip e Get the M A N dividers for a specific frequency or a set of frequencies e Get the Mod A Mod I Mod_clkS and RefCIk K values for a specific deviation e Get the resulting deviation bit rate etc for a specific set of parameters e Get external components values for
8. e an exe extension and the file having a bbb extension should be renamed to have a bat extension e By double clicking the PCxx bat file xx software version number o First the loadbwcc program is started This will initiate the PC for the controls used in the program o Then PCxx is started xx software version number e Start the program by double clicking PCxx bat xx sw version number e When the program starts a welcome message is displayed Please read it You can select to close the welcome message by pressing the OK button or you can select to keep the window e In addition a window called Overview is opened when the program starts In this window the complete 22 byte long control word to enter into the RF chip will be displayed At start up the window will be empty 3 Menu items and dialog boxes In the following the menu items and dialog boxes will be described A menu item is always preceded with gt First the menu item from the main menu is described Then the sub items of the main menu item are described and so on Micrel Norway AS 4 RF TestBench User Guide SW v05 doc v1 3 1 gt Setup This is where the MICRF505 or MICRF506 chip is selected In addition this is where the communication port is selected relevant only if you are using a development board 3 2 D Setup gt Select MICRF505 or MICRF506 chip The Select Chip dialog box window a
9. entered control word e Get FW v o Get the firmware version of the program presently in the micro controller New features may be added to new versions of the firmware e Reset uC o Restart micro controller e Reset EEP o Fill EEPROM with default settings of the control word e Read EEP o Read the presently stored EEPROM control word e Use FLASH o Instruct the development board to use the control word stored in FLASH program memory of the micro controller This is identical to the Default settings e Use EEP o Instruct the development board to use the control word stored in EEPROM of the micro controller The user entered control word stored in EEPROM is used in 2 way link test mode and simple byte transfer mode e Get Source o Find out if the board will use the FLASH or the EEPROM memory i e the default and the user entered control words respectively e Cancel o Close window Output fields e FW version o Present firmware version micro controller program FW version 99 is used for test programs e Control word read from EEPROM o Presently EEPROM stored control word e Source is o FLASH or EEPROM will be displayed e Status o Messages related to the transfer of commands are displayed here After pressing Transfer Waiting will be displayed If no response from board Waiting will continue to be displayed If response from board Micrel Norway AS 12 RF TestBench User Guide SW v05 doc v
10. nch This is where you can construct change a control word for MICRF50x You can give commands to the development board here 3 5 DRF TestBench Overview The RF TestBench Overview window pops up Output fields e Address hex o The address of a byte in the MICRF50x control word The Address range is from 0x00 to 0x15 a total of 22 bytes all the editable locations in the RF chip e Address dec o The address of a byte in the MICRF50x control word The Address range is from 0 to 21 a total of 22 bytes all the editable locations in the RF chip e Value hex o The value of the byte with address 0 address I etc is shown as a hex number e Changed from hex o If after calculations in Quick Complete the content is changed the previous value will be shown here Micrel Norway AS RF TestBench User Guide SW v05 doc v1 3 6 DRF TestBench Quick Setup The RF TestBench Quick Setup window pops up Input fields e Xtal Frequency o Enter the frequency in MHz of the xtal connected to the RF part e Wanted Bit rate o Enter the wanted on the air bit rate This is also referred to as number of signal elements second e Wanted RF Frequency o Enter the RF center frequency in MHz This will be the frequency used in receive mode e Wanted Single Sided Dev o Enter the single sided deviation in kHz The frequency for transmitting a 0 will be the Wanted RF Frequency
11. ppears Push Buttons e MICRF505 o Press this button to select the MICRF505 Then the window is automatically closed e MICRF506 o Press this button to select the MICRF506 Then the window is automatically closed e OK o Press this button to exit the window If you open the window the previously selected if any RF chip is displayed Output fields e Present Selection o Ifno RF chip is selected this field is blank If a RF chip is selected MICRF505 or MICRF506 will be displayed 3 3 gt Setup Communication port The Select COM port dialog box window appears Push Buttons e Select COM1 o Press this button if you want to use serial port COM 1 If not possible to open some other program may be using it you will get a message If the port is successfully opened the window is automatically closed e Select COM2 o Press this button if you want to use serial port COM 2 If not possible to open some other program may be using it you will get a message If the port is successfully opened the window is automatically closed e Close COM port o Press this button if you want to close the presently selected serial port but still run the program This is useful if you need to use the COM port in another program The window is automatically closed e Return o Press this button to close the window without opening or closing a port Micrel Norway AS 5 RF TestBench User Guide SW v05 doc v1 3 4 DRF TestBe
12. re This is the achieved comp frequency If Internal modulation switching between two sets of A N M dividers is selected three numbers are displayed These are the achieved comparison frequency for rx tx 0 and tx 1 resp Achieved SC Cutoff O Status O Achieved switchcap cut off frequency Messages related to the transfer of commands are displayed here After pressing Transfer Waiting will be displayed If no response from board Waiting will continue to be displayed If response from board is received Success or Error will be displayed If Error Please test communication cable power DIP switch setting and jumpers Groups of radio buttons The groups of radio buttons are self explaining Within a group only one item can be selected Mode of Operation Prefilter Cutoff Modulation Type Output Power Level Push Buttons Calc O Press this button to update the output fields and the Overview and Complete Setup window if open Calculations are based on the input fields from the Quick Setup window See Details O Press this button to open the Complete Setup window Default O All input fields are reset to default settings Transfer O Cancel O Store Transfer control word to the development board The user entered control word will be stored in the EEPROM of the micro controller Close window Micrel Norway AS RF Test
13. ting and jumpers Push Buttons e Calc o Press this button to update the output fields and the Overview and the Quick Setup window if open Calculations are based on the input fields from the Complete Setup window note that both wanted and achieved fields in the Quick Setup window will be changed e Default o All input fields are reset to default settings e Transfer o Transfer control word to the development board The user entered control word will be stored in the EEPROM of the micro controller e Cancel o Close window e Store o The control word is stored in a file using the following naming convention rftb_xxx txt where xxx a number ranging from 000 to 999 The first not existing number is used and a message window pops up e Import Micrel Norway AS 10 RF TestBench User Guide SW v05 doc v1 o A window pops up enter the name of the file to import rftb_xxx txt If no file name is entered or the entered file cannot be opened a message window will pop up e Update o Press this button to write a specific value to a specific register Note that all the fields in the specified register will be updated Micrel Norway AS 11 RF TestBench User Guide SW v05 doc v1 3 8 DRF TestBench Development Board Commands The Commands to Development Board window pops up Push Buttons e TX1010 o Start to transmit a 1010 pattern Transmit mode will be entered over ruling the
14. uld be 3 16 DPDeviation Deviation Select Help Enter values and calculate These are the formulas used minimum_deviation beta bitrate 2 2 total xtal ppm rf frequency le 6 minimum filter cutoff minimum deviation 2 total xtal ppm rf frequency le6 bitrate 2 Note that the resulting beta will be higher than the input The entered beta is considers a minimum beta Micrel Norway AS 15
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