]>
Commit | Line | Data |
---|---|---|
1 | ------------------------------------------------------------------------------- | |
2 | Amulet Technologies LCD UART protocol | |
3 | ------------------------------------------------------------------------------- | |
4 | ||
5 | This is a dump of Amulet LCD UART protocol for Barco Encore Small Controller | |
6 | video mixer controller. | |
7 | ||
8 | Amulet LCDs have their own processor, flash and RAM. They work by displaying | |
9 | pages created with GemStudio and have an "ASCII" protocol for selecting the | |
10 | page and updating strings and other variables for widgets. | |
11 | ||
12 | Details: | |
13 | https://www.amulettechnologies.com/index.php/products/display-modules | |
14 | https://www.amulettechnologies.com/index.php/support/documentation/send/9-users-guide/34-users-guide | |
15 | (protocol definition starts on page 159) | |
16 | ||
17 | ||
18 | Logic analyzer setup | |
19 | -------------------- | |
20 | ||
21 | The logic analyzer used was a DreamSourceLabs DSLogic (at 10MHz): | |
22 | ||
23 | It was connected on the 5V logic level UART line between the Amulet | |
24 | display and the main CPU board. | |
25 | ||
26 | Probe UART | |
27 | ---------------- | |
28 | 0 RX (on the Amulet display) | |
29 | 1 TX (on the Amulet display) | |
30 | ||
31 | ||
32 | Data | |
33 | ---- | |
34 | ||
35 | The communication is UART (115200/8n1). | |
36 | ||
37 | bootup.sr contains the display initialization at controller bootup, since all | |
38 | of the pages are on the display flash no proprietary firmware is present. | |
39 | ||
40 | menu_changes.sr is a capture of cycling between different menu pages using | |
41 | buttons on the controller keyboard. |