SLWU087E november 2013 – june 2023
HSDC Pro GUI operates with the TSW14J56 EVM, a JESD204B serial interface data capture/pattern generator platform. This EVM has a single industry standard FMC connector that interfaces directly with all TI JESD204B ADC and DAC EVMs (see Figure 8-1). When used with an ADC EVM, high speed serial data is captured and de-serialized and formatted by an Intel PSG®Arria® V GZ FPGA, then stored into an external DDR3 memory bank, enabling the TSW14J56 to store up to 512MB, 16-bit data samples. To acquire data on a host PC, the FPGA reads the data from memory and transmits it on SPI. An onboard high-speed USB-to-SPI converter bridges the FPGA SPI interface to the host PC and GUI.
In Pattern Generator Mode, the TSW14J56 generates desired test patterns for DAC EVMs under test. These patterns are sent from the host PC over the USB interface to the TSW14J56. The FPGA stores the data received into the board DDR3 memory module. The data from the memory is then read by the FPGA and transmitted to a DAC EVM across the JESD204B interface connector.
In the Instrument Options tab of the GUI, the option called "Dynamic Configuration" allows the user to change certain JESD204B parameters without loading new firmware into the FPGA. The ini files load default values for these parameters based on what ADC or DAC is selected and what mode of operation is chosen. For the most part, users should not have to change these values in this tab. If any values are changed, the default values of the ini file is overwritten. Any changes effects the operation of the JESD204B interface, and must be made at both the receiver and transmit side of the interface.