Difference between revisions of "TSC2102"
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| − | '''Remark:''' SPI_SSn i.MXL/DevLight chip select signal is not used | + | '''Remark:''' SPI_SSn i.MXL/DevLight chip select signal is not used by Linux as the driver need multiple chip select (one for each chip connected on the bus), so we use GPIOs for that purpose. |
==Drivers== | ==Drivers== | ||
| − | * [[TSC2102 Linux driver| Linux driver]] | + | * [[TSC2102 Linux driver| TSC2102 Linux driver details ]] |
==Links== | ==Links== | ||
* [http://focus.ti.com/docs/prod/folders/print/tsc2102.html TSC2102 Web page at Texas Instruments] | * [http://focus.ti.com/docs/prod/folders/print/tsc2102.html TSC2102 Web page at Texas Instruments] | ||
Revision as of 18:16, 11 July 2007
Informations about the hardware interface between the i.MXL and the TSC2102. This chip will be available on the DevFull board but anyone should be able to add it to it's DevLight.
Introduction
This chip is a "SMART" 4-Wire Touch Screen Controller with Stereo DAC with HP Amplifier.
Interface
Touchscreen
Configuration and data exchange is done through the SPI bus n°
Audio
Configuration through SPI bus and data exchange through SSIA
Signals
| i.MXL/DevLight | TSC2102 | Functionnality |
|---|---|---|
| SCLK | SPI clock | |
| MOSI | SPI MasterOut SlaveIn | |
| MISO | SPI MasterIn SlaveOut | |
| PortB 17 / SSI1_TXDAT | SSn | SPI Chip select |
| PortB 18 / SSI1_TXFS | PINT/DAVn | IT |
| Reset (on Reset switch) | RESETn | Global reset signal |
Remark: SPI_SSn i.MXL/DevLight chip select signal is not used by Linux as the driver need multiple chip select (one for each chip connected on the bus), so we use GPIOs for that purpose.
