From: Burghardt Arne
Sent: Monday, August 09, 2010 5:48 AM
To: Kevin Wells
Subject: [Ltib] EA3250: Touchscreen not functional with 2.6.34 kernel
i have attached a scope to the SPI signals of the TSC2046 touchscreen
controller and got some interesting results:
1) CS, CLK & MOSI signals are ok
2) MISO has a low level of ~2.0 V ! High level is ~3.1V
That smells, if there are some output drivers connected...
Could you please check, if the signal SPI1_DATIN (GPI_25) is configured as an
input ? I have already searched for the init procedure, where all GPIOs or SPI
related registers are initialized, but without success.
Thanks for your help !