touchkey

I'm working with a custom board which has 8 channels consisting of three touchkey and 1 linear sensor.

There are 8 channel IOs, three sampling IOs and no shield configs. Three of the channels are for the three touchkeys. Five of the channels are for the linear sensor.

I have worked with the STM3270B Discovery board where it has three channels setup in a Half-Ended electrode design (LIN_H). I've worked through the example provided by this board for a non interrupt implementation.

I have worked with the STM3207 Eval board where it has two channels setup as two touchkeys.

On my custom board the touchkeys work flawlessly. The five channel linear sensor does not work completely. All five pads do indeed detect a touch but as far as data position goes, it fails. The example has all the ios in a single channel. There isn't an example I know of which uses 5 channels split across two TSC groups. Its mentioned in the STMTouch Driver User Manual, but I'll have to look again for a code sample.

The problem is that the macro which determines the value of the sensor LINEAR_POSITION = MyLinRots[0].p_Data->Position has two results. If either of the two pads associated with the group 1 IOs is touched the DETECT macro fires correctly but the LINEAR_POSITION value is 0x2. Likewise if the three pads associated with the group 2 IOS is touched DETECT macro fires correctly but the LINEAR_POSITION value is 0xC.

I thought the value would vary between 0 and 255 split 5 ways for each pad. I've looked at the raw position instead of the scaled position but it behaves similarly.

Here is my layout of the channels, banks, touchkeys, linear/rotary and objects split across the header file and source file.

The header:

no Error just nothing happen and file target still there in my path