From 389b97d9e49462379494ec48c1d0c1c9a994faf7 Mon Sep 17 00:00:00 2001 From: occheung Date: Mon, 31 Jan 2022 16:39:20 +0800 Subject: [PATCH] 5108: make ADC-Repeaters-EEM path unidirectional The only signal that enters the ADC through the repeaters is the SPI clock. It is only a state/time reference, no meaning info goes through this path. --- 5108.tex | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/5108.tex b/5108.tex index f805063..3e6f8b2 100644 --- a/5108.tex +++ b/5108.tex @@ -227,7 +227,8 @@ However, the sample rate in practice is typically limited by the use of ARTIQ-Py % Also, that MISO line does not do anything useful. The ARTIQ driver implementation is just a huge data integrity check. \draw [-latexslim] (6, 1.2) -- (5, 1.2); \draw [-latexslim] (6, 0.8) -- (5.5, 0.8) -- (5.5, -0.8) -- (5, -0.8); - \draw [latexslim-latexslim] (5, -1.2) -- (6, -1.2); + % Data comes out of the ADC, the only signal that goes in is the clock + \draw [-latexslim] (5, -1.2) -- (6, -1.2); % Draw EEPROMs \draw (6, 2.35) node[twoportshape,t={EEPROM}, circuitikz/bipoles/twoport/width=1.4, scale=0.6] (eeprom0) {}; @@ -242,7 +243,7 @@ However, the sample rate in practice is typically limited by the use of ARTIQ-Py \draw [latexslim-latexslim] (eeprom1.north) -- (7.6, -2.6); % Connect EEM Port 0 - \draw [latexslim-latexslim] (6.6, -0.8) -- (7.1, -0.8) -- (7.1, 0.8) -- (7.6, 0.8); + \draw [-latexslim] (6.6, -0.8) -- (7.1, -0.8) -- (7.1, 0.8) -- (7.6, 0.8); \draw [latexslim-] (6.6, 1.2) -- (7.6, 1.2); \draw [latexslim-latexslim] (eeprom0.east) -- (7.6, 2.35);