We are trying a small batch of 533 modules in a new product. We are using exactly the same command set as on the 633, which we have used on other products for several years. The 533 modules are working fine, except in one respect, which is that we can't update the welcome message.
As delivered, the displays report the standard Crystalfontz welcome message, but once we try to use Command 4 (Store Current State as Boot State), the welcome message becomes a series of spurious symbols.
We are using exactly the same routines as on the 633, which still works fine in this application.
We are running from a 3.3V supply,which we believe is in spec.
The symptoms suggest there may be a problem with the 533 hardware/firmware. The hardware type is CFA_533 YYH KL, v1.0 and the serial number of one of the units is 1009533YYH0006060. We don't currently read the firmware version in our application firmware, but I can arrange to do that if you can't trace it from the serial number.
As delivered, the displays report the standard Crystalfontz welcome message, but once we try to use Command 4 (Store Current State as Boot State), the welcome message becomes a series of spurious symbols.
We are using exactly the same routines as on the 633, which still works fine in this application.
We are running from a 3.3V supply,which we believe is in spec.
The symptoms suggest there may be a problem with the 533 hardware/firmware. The hardware type is CFA_533 YYH KL, v1.0 and the serial number of one of the units is 1009533YYH0006060. We don't currently read the firmware version in our application firmware, but I can arrange to do that if you can't trace it from the serial number.
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