Hello! I'm trying to use a custom PCB STM32L475 with the touch sensing library based on the 1 touch example there is available for the L4xx.
I've configured the PC8 pin as TSC_G4_IO3 (as sampling pin) and both PC6 and PC7 as TSC_G4_IO1 and TSC_G4_IO2 (as inputs) with no pin as shielding input.
In the main code, I've initialized TSC and Touchsensing with MX_TSC_Init();
MX_TOUCHSENSING_Init();
The MX_TSC_INIT is declared as following:
htsc.Instance = TSC;
htsc.Init.CTPulseHighLength = TSC_CTPH_2CYCLES;
htsc.Init.CTPulseLowLength = TSC_CTPL_2CYCLES;
htsc.Init.SpreadSpectrum = DISABLE;
htsc.Init.SpreadSpectrumDeviation = 1;
htsc.Init.SpreadSpectrumPrescaler = TSC_SS_PRESC_DIV1;
htsc.Init.PulseGeneratorPrescaler = TSC_PG_PRESC_DIV32;
htsc.Init.MaxCountValue = TSC_MCV_8191;
htsc.Init.IODefaultMode = TSC_IODEF_OUT_PP_LOW;
htsc.Init.SynchroPinPolarity = TSC_SYNC_POLARITY_FALLING;
htsc.Init.AcquisitionMode = TSC_ACQ_MODE_NORMAL;
htsc.Init.MaxCountInterrupt = DISABLE;
htsc.Init.ChannelIOs = TSC_GROUP4_IO1|TSC_GROUP4_IO2;
htsc.Init.ShieldIOs = 0;
htsc.Init.SamplingIOs = TSC_GROUP4_IO3;
if (HAL_TSC_Init(&htsc) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
and the MX_TOUCHSENSING_INIT does : tsl_user_Init();
After this, in my while(1) loop I have:
tsl_status = tsl_user_Exec();
if (tsl_status != TSL_USER_STATUS_BUSY)
{
Process_Sensors(tsl_status);
}
else if (tsl_status == TSL_USER_STATUS_BUSY){
platformLog("USER BUSY\n");
}
if (TKEY_DET(0))
{
platformLog("Press KEY");
}
else if (TKEY_REL(0))
{
platformLog("No Key Pressed\n");
}
I know I declared 2 inputs so I have TKEY(0) and TKEY(1), but I was trying to make it work with only one of the inputs. My Issue is that tsl_status is always Busy so the process sensors function never happens. Any ideas why would that be the case?
