Issue with PCF8531

[karuna_pcs]

How to configure dot matrix display.

We have hybrid lcd, which is established both segment and dot matrix display.

We need to turn on all the dots. (By code way to already given by command). But nothing is showing.

Please help us. 

[reyes]

Hi,

You can turn on all the dots with the D and E bits, setting D = 0 and E = 1 you turn on all the display segments. Or by performing a Display blank (D = 0; E = 0) and set inverse video mode (D = 1; E = 1 and IM = 0).

Please check Table 18 “Programming examples for PCF8531" of the datasheet on pages 43, 44, and 45 for more details about how to perform these actions.

Regards,

Jose