Posted on June 14, 2016 at 14:56Hello Miles,
You must enable DxS feature: set DxSGroup with relevant values.
Setup can be done in ExtraCode_Init() level.
e.g: STM8S_TouchSensing_Lib_V2.5.0\Projects\Examples\STM8S207K6_Ex02\src\main.c:ExtraCode_Init()
...
void ExtraCode_Init(void)
{
...
#if NUMBER_OF_SINGLE_CHANNEL_KEYS > 0
...
sSCKeyInfo[i].
DxSGroup = 0x??; /* 0x00 = DxS disabled, other values = DxS enabled */
==> set DxSGroup with relevant value. See
Examples ...
#endif
...
#if NUMBER_OF_MULTI_CHANNEL_KEYS > 0
...
sMCKeyInfo[i].
DxSGroup = 0x??; /* 0x00 = DxS disabled, other values = DxS enabled */
==> set DxSGroup with relevant value. See
Examples ...
#endif
...
Details regarding DxSGroup field (Touch-Sensing Driver User Manual):
Detection exclusion System (DxS)
This feature is designed to authorize only one key to enter
the detected state within a group of keys.
The scheme to decide which key must be detected or rejected
is based on the timing of acquisition:
The first key to be detected is authorized and the other keys
of the same group cannot enter the detection state.
Each key can be a part of zero, one or several groups (with a maximum of 8 groups).
The group is held by the DxSGroup variable which is part of
the structures Single_Channel_Complete_Info_T,
Penta_Channel_Complete_Info_T and Octo_Channel_Complete_Info_T.
The 8 bits of this variable represent the 8 different groups (from group 0 to group 7).
Examples:
DxSGroup = 0x00: the key is not a member of a group (default value)
DxSGroup = 0x01: the key is member of group 0
DxSGroup = 0x81: the key is member of groups 0 and 7
DxSGroup = 0xFF: the key is member of all groups
The DxS process is managed by the TSL_SCKey_DxS() function
(for the Single channel keys) and by the TSL_MCKey_DxS() function (for the Multi channels keys).
Shadock.
