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Forum Post: ADS54J20EVM: Reading registers using ads54jxx gui

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Part Number: ADS54J20EVM Hi All, I got an ADS54J20EVM board and I'm trying to read its configuration registers using ADS54Jxx GUI low-level view. As a start, I'm trying to read the LMK4828 ID registers (0x3-0x6, 0xC, 0xE) but only get zeros. Using a scope I verified that SPI CLK and SDO signals are alive (measured on R69/R70). I also noticed that the GUI board selection pull-down menu only offers ADS54J40 and ADS54J20 . Any ideas what am I missing? Thanks in advance, Jacky

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