Ms Jung -
Please refer to the ADS1299 user guide located @ http://www.ti.com/lit/ug/slau443/slau443.pdf. The schematics for the EVM are located toward the end of the document. For the SPI lines, you want to connect to J3.
Ms Jung -
Please refer to the ADS1299 user guide located @ http://www.ti.com/lit/ug/slau443/slau443.pdf. The schematics for the EVM are located toward the end of the document. For the SPI lines, you want to connect to J3.