/**
* @brief Configures the TSC peripheral.
* @param None
* @retval None
*/
static void TSL_Config(void)
{
/* Configure the TSC peripheral */
TscHandle.Instance = TSC;
TscHandle.Init.AcquisitionMode = TSC_ACQ_MODE_NORMAL;
TscHandle.Init.CTPulseHighLength = TSC_CTPH_2CYCLES;
TscHandle.Init.CTPulseLowLength = TSC_CTPL_2CYCLES;
TscHandle.Init.IODefaultMode = TSC_IODEF_OUT_PP_LOW;
TscHandle.Init.MaxCountInterrupt = DISABLE;
TscHandle.Init.MaxCountValue = TSC_MCV_8191;
TscHandle.Init.PulseGeneratorPrescaler = TSC_PG_PRESC_DIV2;
TscHandle.Init.SpreadSpectrum = DISABLE;
TscHandle.Init.SpreadSpectrumDeviation = 127;
TscHandle.Init.SpreadSpectrumPrescaler = TSC_SS_PRESC_DIV1;
TscHandle.Init.SynchroPinPolarity = TSC_SYNC_POL_FALL;
/* All channel, shield and sampling IOs must be declared below */
TscHandle.Init.ChannelIOs = TSC_GROUP1_IO3 | TSC_GROUP2_IO3 | TSC_GROUP3_IO2;
TscHandle.Init.SamplingIOs = TSC_GROUP1_IO4 | TSC_GROUP2_IO4 | TSC_GROUP3_IO3;
TscHandle.Init.ShieldIOs = 0;
HAL_TSC_Init(&TscHandle);
/* Initialize the STMTouch driver */
tsl_user_Init();
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
tsl_user_status_t tsl_status;
/* STM32F0xx HAL library initialization:
- Configure the Flash prefetch
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Low Level Initialization
*/
HAL_Init();
/* Configure the system clock to 48 MHz */
SystemClock_Config();
/* Configure LEDs */
BSP_LED_Init(LED4);
BSP_LED_Init(LED5);
BSP_LED_Init(LED3);
/* Configure the TSC peripheral */
TscHandle.Instance = TSCx;
TscHandle.Init.AcquisitionMode = TSC_ACQ_MODE_NORMAL;
TscHandle.Init.CTPulseHighLength = TSC_CTPH_2CYCLES;
TscHandle.Init.CTPulseLowLength = TSC_CTPL_2CYCLES;
TscHandle.Init.IODefaultMode = TSC_IODEF_OUT_PP_LOW;
TscHandle.Init.MaxCountInterrupt = DISABLE;
TscHandle.Init.MaxCountValue = TSC_MCV_8191;
TscHandle.Init.PulseGeneratorPrescaler = TSC_PG_PRESC_DIV64;
TscHandle.Init.SpreadSpectrum = DISABLE;
TscHandle.Init.SpreadSpectrumDeviation = 127;
TscHandle.Init.SpreadSpectrumPrescaler = TSC_SS_PRESC_DIV1;
TscHandle.Init.SynchroPinPolarity = TSC_SYNC_POLARITY_FALLING;
/* All channel, shield and sampling IOs must be declared below */
TscHandle.Init.ChannelIOs = (TSC_GROUP1_IO3 | TSC_GROUP2_IO3 | TSC_GROUP3_IO2);
TscHandle.Init.SamplingIOs = (TSC_GROUP1_IO4 | TSC_GROUP2_IO4 | TSC_GROUP3_IO3);
TscHandle.Init.ShieldIOs = 0;
if (HAL_TSC_Init(&TscHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/* Initialize the STMTouch driver */
tsl_user_Init();
/* Infinite loop */
while (1)
{
/* Execute STMTouch Driver state machine */
tsl_status = tsl_user_Exec();
if (tsl_status != TSL_USER_STATUS_BUSY)
{
Process_Sensors(tsl_status);
}
}
}
/* TSC init function */
void MX_TSC_Init(void)
{
/**Configure the TSC peripheral
*/
htsc.Instance = TSC;
htsc.Init.CTPulseHighLength = TSC_CTPH_2CYCLES;
htsc.Init.CTPulseLowLength = TSC_CTPL_2CYCLES;
htsc.Init.SpreadSpectrum = ENABLE;
htsc.Init.SpreadSpectrumDeviation = tscspread;
htsc.Init.SpreadSpectrumPrescaler = TSC_SS_PRESC_DIV1;
htsc.Init.PulseGeneratorPrescaler = TSC_PG_PRESC_DIV2;
htsc.Init.MaxCountValue = TSC_MCV_1023;
htsc.Init.IODefaultMode = TSC_IODEF_OUT_PP_LOW;
htsc.Init.SynchroPinPolarity = TSC_SYNC_POL_FALL;
htsc.Init.AcquisitionMode = TSC_ACQ_MODE_NORMAL;
htsc.Init.ChannelIOs = TSC_GROUP2_IO2|TSC_GROUP3_IO4|TSC_GROUP4_IO2|TSC_GROUP5_IO2
|TSC_GROUP6_IO2;
htsc.Init.SamplingIOs = TSC_GROUP2_IO1|TSC_GROUP3_IO3|TSC_GROUP4_IO1|TSC_GROUP5_IO1
|TSC_GROUP6_IO1;
HAL_TSC_Init(&htsc);
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/* STM32F3xx HAL library initialization:
- Configure the Flash prefetch
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Set NVIC Group Priority to 4
- Low Level Initialization
*/
HAL_Init();
/* Configure the system clock to 72 MHz */
SystemClock_Config();
/* Configure LEDs */
BSP_LED_Init(LED1); /* Touch activity */
BSP_LED_Init(LED2); /* Touch activity */
BSP_LED_Init(LED3); /* Touch activity */
BSP_LED_Init(LED4); /* Error */
/*##-1- Configure the TSC peripheral #######################################*/
TscHandle.Instance = TSCx;
TscHandle.Init.AcquisitionMode = TSC_ACQ_MODE_NORMAL;
TscHandle.Init.CTPulseHighLength = TSC_CTPH_1CYCLE;
TscHandle.Init.CTPulseLowLength = TSC_CTPL_1CYCLE;
TscHandle.Init.IODefaultMode = TSC_IODEF_OUT_PP_LOW;
TscHandle.Init.MaxCountInterrupt = DISABLE;
TscHandle.Init.MaxCountValue = TSC_MCV_16383;
TscHandle.Init.PulseGeneratorPrescaler = TSC_PG_PRESC_DIV64;
TscHandle.Init.SpreadSpectrum = DISABLE;
TscHandle.Init.SpreadSpectrumDeviation = 127;
TscHandle.Init.SpreadSpectrumPrescaler = TSC_SS_PRESC_DIV1;
TscHandle.Init.SynchroPinPolarity = TSC_SYNC_POLARITY_FALLING;
TscHandle.Init.ChannelIOs = TSC_GROUP8_IO2; /* TS1 touchkey */
TscHandle.Init.SamplingIOs = (TSC_GROUP8_IO1 | TSC_GROUP6_IO1);
TscHandle.Init.ShieldIOs = TSC_GROUP6_IO2;
if (HAL_TSC_Init(&TscHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/* Infinite loop */
while (1)
{
/*##-2- Discharge the touch-sensing IOs ##################################*/
/* Must be done before each acquisition */
HAL_TSC_IODischarge(&TscHandle, ENABLE);
HAL_Delay(1); /* 1 ms is more than enough to discharge all capacitors */
/*##-3- Start the acquisition process ####################################*/
if (HAL_TSC_Start(&TscHandle) != HAL_OK)
{
/* Acquisition Error */
Error_Handler();
}
/*##-4- Wait for the end of acquisition ##################################*/
/* Before starting a new acquisition, you need to check the current state of
the peripheral; if it’s busy you need to wait for the end of current
acquisition before starting a new one. */
while (HAL_TSC_GetState(&TscHandle) == HAL_TSC_STATE_BUSY)
{
/* For simplicity reasons, this example is just waiting till the end of the
acquisition, but application may perform other tasks while acquisition
operation is ongoing. */
}
/*##-5- Clear flags ######################################################*/
__HAL_TSC_CLEAR_FLAG(&TscHandle, (TSC_FLAG_EOA | TSC_FLAG_MCE));
/*##-6- Check if the acquisition is correct (no max count) ###############*/
if (HAL_TSC_GroupGetStatus(&TscHandle, TSC_GROUP8_IDX) == TSC_GROUP_COMPLETED)
{
/*##-7- Store the acquisition value ####################################*/
uhTSCAcquisitionValue = HAL_TSC_GroupGetValue(&TscHandle, TSC_GROUP8_IDX);
/* Show touch activity on LEDs */
/* Threshold values are indicative and may need to be adjusted */
if ((uhTSCAcquisitionValue > TSCx_MIN_THRESHOLD) && (uhTSCAcquisitionValue < TSCx_LOW_MAXTHRESHOLD))
{
BSP_LED_On(LED1);
if (uhTSCAcquisitionValue < TSCx_MEDIUM_MAXTHRESHOLD)
{
BSP_LED_On(LED2);
if (uhTSCAcquisitionValue < TSCx_HIGH_MAXTHRESHOLD)
{
BSP_LED_On(LED3);
}
else
{
BSP_LED_Off(LED3);
}
}
else
{
BSP_LED_Off(LED2);
BSP_LED_Off(LED3);
}
}
else
{
BSP_LED_Off(LED1);
BSP_LED_Off(LED2);
BSP_LED_Off(LED3);
}
}
}
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
tsl_user_status_t tsl_status;
/* STM32F0xx HAL library initialization:
- Configure the Flash prefetch
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Low Level Initialization
*/
HAL_Init();
/* Configure LEDs */
BSP_LED_Init(LED2);
BSP_LED_Init(LED1);
BSP_LED_Init(LED4);
BSP_LED_Init(LED3);
/* Configure the system clock to 48 MHz */
SystemClock_Config();
/* Configure the TSC peripheral */
TscHandle.Instance = TSCx;
TscHandle.Init.AcquisitionMode = TSC_ACQ_MODE_NORMAL;
TscHandle.Init.CTPulseHighLength = TSC_CTPH_2CYCLES;
TscHandle.Init.CTPulseLowLength = TSC_CTPL_2CYCLES;
TscHandle.Init.IODefaultMode = TSC_IODEF_OUT_PP_LOW;
TscHandle.Init.MaxCountInterrupt = DISABLE;
TscHandle.Init.MaxCountValue = TSC_MCV_8191;
TscHandle.Init.PulseGeneratorPrescaler = TSC_PG_PRESC_DIV64;
TscHandle.Init.SpreadSpectrum = DISABLE;
TscHandle.Init.SpreadSpectrumDeviation = 127;
TscHandle.Init.SpreadSpectrumPrescaler = TSC_SS_PRESC_DIV1;
TscHandle.Init.SynchroPinPolarity = TSC_SYNC_POLARITY_FALLING;
/* All channel, shield and sampling IOs must be declared below */
TscHandle.Init.ChannelIOs = (TSC_GROUP8_IO2 | TSC_GROUP8_IO1);
TscHandle.Init.SamplingIOs = (TSC_GROUP8_IO3 | TSC_GROUP8_IO3 | TSC_GROUP6_IO1);
TscHandle.Init.ShieldIOs = TSC_GROUP6_IO2;
if (HAL_TSC_Init(&TscHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/* Just to indicate the fw is alive... */
BSP_LED_On(LED2);
BSP_LED_On(LED1);
BSP_LED_On(LED4);
BSP_LED_On(LED3);
/* Configure LCD */
#if USE_LCD > 0
BSP_LCD_Init();
BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_Clear(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_DARKBLUE);
BSP_LCD_DisplayStringAt(0, 10, (uint8_t *)"STM32F091xx", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, 35, (uint8_t *)"TouchSensing", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, 55, (uint8_t *)"Example", CENTER_MODE);
#endif
BSP_LED_Off(LED2);
BSP_LED_Off(LED1);
BSP_LED_Off(LED4);
BSP_LED_Off(LED3);
/* Initialize the STMTouch driver */
tsl_user_Init();
/* Infinite loop */
while (1)
{
/* Execute STMTouch Driver state machine */
tsl_status = tsl_user_Exec();
if (tsl_status != TSL_USER_STATUS_BUSY)
{
Process_Sensors(tsl_status);
}
}
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/* STM32F3xx HAL library initialization:
- Configure the Flash prefetch
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Set NVIC Group Priority to 4
- Low Level Initialization
*/
HAL_Init();
/* Configure the system clock to 72 MHz */
SystemClock_Config();
/* Configure LEDs */
BSP_LED_Init(LED1);
BSP_LED_Init(LED2);
BSP_LED_Init(LED4);
/*##-1- Configure the TSC peripheral #######################################*/
TscHandle.Instance = TSCx;
TscHandle.Init.AcquisitionMode = TSC_ACQ_MODE_NORMAL;
TscHandle.Init.CTPulseHighLength = TSC_CTPH_1CYCLE;
TscHandle.Init.CTPulseLowLength = TSC_CTPL_1CYCLE;
TscHandle.Init.IODefaultMode = TSC_IODEF_OUT_PP_LOW;
TscHandle.Init.MaxCountInterrupt = ENABLE;
TscHandle.Init.MaxCountValue = TSC_MCV_16383;
TscHandle.Init.PulseGeneratorPrescaler = TSC_PG_PRESC_DIV64;
TscHandle.Init.SpreadSpectrum = DISABLE;
TscHandle.Init.SpreadSpectrumDeviation = 127;
TscHandle.Init.SpreadSpectrumPrescaler = TSC_SS_PRESC_DIV1;
TscHandle.Init.SynchroPinPolarity = TSC_SYNC_POL_FALL;
TscHandle.Init.ChannelIOs = 0; /* Not needed yet. Will be set with HAL_TSC_IOConfig() */
TscHandle.Init.SamplingIOs = 0; /* Not needed yet. Will be set with HAL_TSC_IOConfig() */
TscHandle.Init.ShieldIOs = 0; /* Not needed yet. Will be set with HAL_TSC_IOConfig() */
if (HAL_TSC_Init(&TscHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/*##-2- Configure the touch-sensing IOs ####################################*/
IoConfig.ChannelIOs = TSC_GROUP8_IO2; /* Start with the first channel */
IoConfig.SamplingIOs = (TSC_GROUP8_IO1 | TSC_GROUP8_IO1 | TSC_GROUP6_IO1);
IoConfig.ShieldIOs = TSC_GROUP6_IO2;
if (HAL_TSC_IOConfig(&TscHandle, &IoConfig) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/*##-3- Discharge the touch-sensing IOs ####################################*/
HAL_TSC_IODischarge(&TscHandle, ENABLE);
HAL_Delay(1); /* 1 ms is more than enough to discharge all capacitors */
/*##-4- Start the acquisition process ######################################*/
if (HAL_TSC_Start_IT(&TscHandle) != HAL_OK)
{
/* Acquisition Error */
Error_Handler();
}
/* Infinite loop */
while (1)
{
/*Suspend Tick increment to prevent wakeup by Systick interrupt.
Otherwise the Systick interrupt will wake up the device within 1ms (HAL time base)*/
HAL_SuspendTick();
/* The acquisition process is now performed in the HAL_TSC_ConvCpltCallback() function */
HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
/* Resume Tick interrupt if disabled prior to sleep mode entry*/
HAL_ResumeTick();
}
}