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1 | ------------------------------------------------------------------------------- |
2 | Maxim MAX3420E on a DATQ1THD6B0 touch screen module | |
3 | ------------------------------------------------------------------------------- | |
4 | ||
5 | This directory contains captures of the SPI/USB communication of a | |
6 | DATQ1THD6B0 touch screen module (used for TFT monitors). | |
7 | ||
8 | Details: | |
9 | https://randomprojects.org/wiki/DATQ1THD6B0_touch_screen_module | |
10 | https://www.maximintegrated.com/en/products/interface/controllers-expanders/MAX3420E.html | |
11 | ||
12 | ||
13 | Logic analyzer setup | |
14 | -------------------- | |
15 | ||
16 | The logic analyzer used was a Saleae Logic16 (at 50MHz): | |
17 | ||
18 | Probe MAX3420E | |
19 | -------------------- | |
20 | 0 USB D- | |
21 | 1 USB D+ | |
22 | 2 MOSI | |
23 | 3 CLK | |
24 | 4 CS# | |
25 | 5 MISO | |
26 | ||
27 | ||
28 | max3420e_poweron_and_other_pcbs.sr | |
29 | ---------------------------------- | |
30 | ||
31 | The samplerate here is only 32MHz, USB may not be entirely decodable. This | |
32 | is a capture which is only meant to show the timing of when the two other | |
33 | PCBs are initialized relative to the main PCB. |