ADC12DJ3200: 采样数据数据传输随机性出现错点？

您好，FG校验应该在初始化过程中完成的，FG_done一直没有拉高。建议先检查下初始化顺序，参考数据手册的8.3部分的初始化顺序：

8.3 Initialization Set Up The device and JESD204 interface require a specific startup and alignment sequence. The general order of that sequence is listed in the following steps.

1. Power-up or reset the device.

2. Apply a stable device CLK signal at the desired frequency.

3. Program JESD_EN = 0 to stop the JESD204B state machine and allow setting changes.

4. Program CAL_EN = 0 to stop the calibration state machine and allow setting changes.

5. Program the desired JMODE.

6. Program the desired KM1 value. KM1 = K–1.

7. Program SYNC_SEL as needed. Choose SYNCSE or timestamp differential inputs.

8. Configure device calibration settings as desired. Select foreground or background calibration modes and offset calibration as needed.

9. Program CAL_EN = 1 to enable the calibration state machine. 

10. Enable overrange via OVR_EN and adjust settings if desired.

11. Program JESD_EN = 1 to re-start the JESD204B state machine and allow the link to restart.

12. The JESD204B interface operates in response to the applied SYNC signal from the receiver.

13. Program CAL_SOFT_TRIG = 0. 14. Program CAL_SOFT_TRIG = 1 to initiate a calibration.

您好，请问校准功能校准的是那一部分？如果只是采样部分的话，我觉得那跟我的情况关系不大。因为我采用ramp模式，已经抛开了采样部分，直接AD产生的数据，在FPGA端抓取的数据还是有错点