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Software Description

13

SLAU687 – May 2016

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Copyright © 2016, Texas Instruments Incorporated

ADS54J20EVM

4.2

Low Level View

The Low Level View tab, shown in

Figure 7

allows configuration of the devices at the bit and field level. At

any time, the controls described in

Table 5

may be used to configure or read from the device.

Figure 7. Low Level View Tab

Table 5. Low Level View Controls

Control

Description

Register Map

Displays the devices on the EVM, registers for those devices, and the states of the registers.

• Selecting a register field allows bit manipulation in the Register Data section.

• The Value column shows the value of the register at the time the GUI was last updated due
to a read or write event.

Write Register button

Write to the register highlighted in the Register Map with the value in the Write Data field. This
button must be clicked after changing bits in the register data section.

Write All button

Update all registers shown in the Register Map with the values shown in the Register Map log.
The log can be viewed by double left clicking in the bottom left status bar of this page.

Read Register button

Read from the register highlighted in the Register Map and display the results in the Value
column.

Read All button

Read from all registers in the Register Map and display the current state of hardware. Also
updates the controls in the other tabs.

Load Config button

Load a configuration file from disk and write the registers in the file.

Save Config button

Save a configuration file to disk that contains the current register configuration.

Register Data Cluster

Manipulate individual accessible bits of the register highlighted in the Register Map.

Generic Read/Write Register
buttons

Perform a generic read or write command to the device shown in the

Block

drop-down box using

the Address and Write Data information

Содержание ADS54J20EVM

Страница 1: ...Setup Procedure 5 2 3 Software Setup Procedure 6 2 4 Quick Start Trouble Shooting 10 3 Optimizing Evaluation Results 11 3 1 Clocking Optimization 11 3 2 Coherent Input Source 11 3 3 HSDC Pro Settings...

Страница 2: ...ol for high speed data converter evaluation The ADS54J20EVM was also designed to work with many of the development kits from leading FPGA vendors that contain an FMC connector 1 1 Required Hardware Th...

Страница 3: ...Identification Summary The EVM features are labeled in Figure 1 Figure 1 EVM Feature Locations 1 4 References ADS54J20EVM software available at www ti com tool ADS54J20EVM ADS54J20 datasheet SBAS766 a...

Страница 4: ...4J56 to the computer for the first time 2 1 1 ADS54Jxx EVM GUI Installation The ADS54Jxx EVM GUI is used to control the ADS54J20EVM It must be used to properly configure the devices on the EVM 1 Downl...

Страница 5: ...EVM is shown in Figure 2 This is the test setup used for the quick start procedure The rest of this section describes the hardware setup steps Figure 2 Quick Start Test Setup 2 2 1 TSW14J56EVM Setup F...

Страница 6: ...d once the hardware is properly setup 2 3 1 ADS54J20 GUI Configuration 1 Open the ADS54Jxx EVM GUI by going to Start Menu All Programs Texas Instruments ADCs ADS54Jxx EVM GUI 2 Verify that the green U...

Страница 7: ...a Converter Pro by going to Start Menu All Programs Texas Instruments High Speed Data Converter Pro The GUI main page looks as shown in Figure 4 Figure 4 HSDC Pro GUI Main Panel 2 When prompted to sel...

Страница 8: ...lick Yes and wait for the firmware to download to the TSW14J56 This takes about 30 40 seconds 7 Enter 983 04M into the ADC Output Data Rate field at the bottom left corner then click outside this box...

Страница 9: ...red data of Channel 1 should look like Figure 5 and the performance should be similar to Table 1 If this result is not achieved then see the Quick Start Troubleshooting section of this document Figure...

Страница 10: ...us update Device GUI is not working properly Verify that the USB cable is plugged into the EVM and the PC Check the computer s Device Manager and verify that a USB Serial Device is recognized when the...

Страница 11: ...ecisely to capture an integer number of cycles of the input frequency sometimes called coherent frequency This may yield better SNR results The clock and analog inputs must be frequency locked such as...

Страница 12: ...54Jxx Enables control of the ADS54Jxx features None of these controls need to be touched for basic operation Instead use the Low Level View tab to load configuration files LMK04828 Enables control of...

Страница 13: ...the Write Data field This button must be clicked after changing bits in the register data section Write All button Update all registers shown in the Register Map with the values shown in the Register...

Страница 14: ...installed and installed at C64 and C72 The LMK04828 must still be used to provide the device clock to the TSW14J56 and the SYSREF signals to both boards This option provides the best performance as lo...

Страница 15: ...shorted to turn on the onboard VCXO The internal PLLs of the LMK04828 can be used with the onboard VCXO to generate the desired frequencies To use this mode load one of the configuration files named...

Страница 16: ...hunt pins 1 2 SJP1 Selects either 3 3 V or GND for Y1 enable Default is open Open SJP3 Selects either diff sync or single ended sync from FMC Default is diff Shunt pins 2 3 A 2 Connector Descriptions...

Страница 17: ...016 Texas Instruments Incorporated Jumper Connector and LED Descriptions A 3 LED Descriptions The EVM LEDs are described Table 8 Table 8 LED Descriptions Connector Description D3 Not used D4 5 VDC pow...

Страница 18: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

Страница 19: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments ADS54J20EVM...

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