Problem getting S32128A to startup
We are working with the S32128A module and I am having issues getting the display to startup. We have used the ST7565 controller before but it was the "P" version which is setup different than the "V" version especially the way the capacitors at V1-V5 are connected to VDD vs VSS. I found your suggested tester schematic for the voltage drive circuit and I have a board configured with all the capacitors set at 1 uF with a 4X voltage boost.
My question is about the voltages at V1-V5, should I see the various voltages when I connect it or do I need to have the processor go through the initialization before I can see the correct voltages? Also do you have an initialization code (in C) for the S32128A?
Attachment: 32128a-testerschematic-060711.pdf (148.0KB)
Never Mind....Fixed it. Difference in the initialization.
Hi BHOLSO,
Any chance you could post what the issue was in the initialization so other can learn from your setup or did you simply have a line of the code transcribed?
Thanks,
Mike
I'm experiencing a similar problem in getting the S32128 to indicate "Display On" in the status. Here's what I'm sending as the initialization string:
0xAF
0xA2
0xA6
0xC0
0x23
0x81
0x18
0x2F
0xA7
0xF8
0x00
0xA4
The S32128A always returns a 0x60 on a status read.
Any ideas?
