Does anyone have a more informative description of actually how to use flow control mode? I am using a GLK12232-25 and have a lot of fields on the screen that need to be updated.
The datasheet seems to hint that drawing white rectangles to block out the old characters uses a lot of overheads? But doesn't suggest a suitable work-around?
Thanks,
Curtis
Flow Control Mode - HELP!
Hello Curtiss,
Thank you for your post.
Flow control is implemented when command 254 / 58 / Almost Full value / Almost Empty value / is sent to the GLK12232-25-SM. You can find more details about this on page 16 of the manual
The implementation of rectangles in the GLK12232-25-SM PCB 1.4 does take a lot of overhead because it draws the rectangle pixel by pixel. Unfortunately, there isn't really a work around this; it is suggested that flow control is used to be able to find out if the module is busy processing so as not to overrun the buffer with commands / data.
If I can get your email address, I would like to tell you more about a new GLK12232-25-SM PCB 2.0 that we are currently working on. We strongly recommend that new designs be based on this new PCB.
Best Regards,
Thank you for your post.
Flow control is implemented when command 254 / 58 / Almost Full value / Almost Empty value / is sent to the GLK12232-25-SM. You can find more details about this on page 16 of the manual
The implementation of rectangles in the GLK12232-25-SM PCB 1.4 does take a lot of overhead because it draws the rectangle pixel by pixel. Unfortunately, there isn't really a work around this; it is suggested that flow control is used to be able to find out if the module is busy processing so as not to overrun the buffer with commands / data.
If I can get your email address, I would like to tell you more about a new GLK12232-25-SM PCB 2.0 that we are currently working on. We strongly recommend that new designs be based on this new PCB.
Best Regards,
Raquel Malinis
Design and Development
Matrix Orbital
Design and Development
Matrix Orbital