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Diffstat (limited to 'uart/amulet_lcd/README')
| -rw-r--r-- | uart/amulet_lcd/README | 41 |
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diff --git a/uart/amulet_lcd/README b/uart/amulet_lcd/README new file mode 100644 index 0000000..74101ad --- /dev/null +++ b/uart/amulet_lcd/README @@ -0,0 +1,41 @@ +------------------------------------------------------------------------------- +Amulet Technologies LCD UART protocol +------------------------------------------------------------------------------- + +This is a dump of Amulet LCD UART protocol for Barco Encore Small Controller +video mixer controller. + +Amulet LCDs have their own processor, flash and RAM. They work by displaying +pages created with GemStudio and have an "ASCII" protocol for selecting the +page and updating strings and other variables for widgets. + +Details: +https://www.amulettechnologies.com/index.php/products/display-modules +https://www.amulettechnologies.com/index.php/support/documentation/send/9-users-guide/34-users-guide +(protocol definition starts on page 159) + + +Logic analyzer setup +-------------------- + +The logic analyzer used was a DreamSourceLabs DSLogic (at 10MHz): + +It was connected on the 5V logic level UART line between the Amulet +display and the main CPU board. + + Probe UART + ---------------- + 0 RX (on the Amulet display) + 1 TX (on the Amulet display) + + +Data +---- + +The communication is UART (115200/8n1). + +bootup.sr contains the display initialization at controller bootup, since all +of the pages are on the display flash no proprietary firmware is present. + +menu_changes.sr is a capture of cycling between different menu pages using +buttons on the controller keyboard. |