ADS127L01: How to control the ADC?

Part Number: ADS127L01

I'm trying to setup and use the ADS127L01 with Raspberry pi 3 model B, but it seems that I'm doing something wrong. I have two questions.

1. I have tied the CLK and SCLK and connected it to the SPI0_SCLK of RPi. Can this make any problem?

2. Previously when I use just simple 12-bit ADC, all that I did was lower CS, read the data, and raise CS. Here it seems that little more complicated. Is there any place that I can find some test source code for ADS127L01?

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