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|
/**
******************************************************************************
* @file tsl_acq_stm32f0xx.c
* @author MCD Application Team
* @version V1.4.4
* @date 31-March-2014
* @brief This file contains all functions to manage the TSC acquisition
* on STM32F0xx products.
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT 2014 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "tsl_acq_stm32f0xx.h"
#include "tsl_globals.h"
#include "stm32f0xx_it.h"
#include "stm32f0xx_gpio.h"
#include "stm32f0xx_conf.h"
#include "stm32f0xx_misc.h"
#include "stm32f0xx_rtc.h"
/* Private typedefs ----------------------------------------------------------*/
/* Private defines -----------------------------------------------------------*/
#define NU (0) // Not Used IO
#define CHANNEL (1) // Channel IO
#define SHIELD (2) // Shield IO (= Channel IO but not acquired)
#define SAMPCAP (3) // Sampling Capacitor IO
/* Private macros ------------------------------------------------------------*/
// Used by assert
#define IS_BANK_INDEX_OK(INDEX) (((INDEX) == 0) || (((INDEX) > 0) && ((INDEX) < TSLPRM_TOTAL_BANKS)))
#define IS_SRC_INDEX_0_5_OK(INDEX) (((INDEX) == 0) || (((INDEX) > 0) && ((INDEX) < 6)))
#define IS_SRC_INDEX_0_7_OK(INDEX) (((INDEX) == 0) || (((INDEX) > 0) && ((INDEX) < 8)))
/* Private variables ---------------------------------------------------------*/
uint32_t DelayDischarge;
/* Private functions prototype -----------------------------------------------*/
void SoftDelay(uint32_t val);
/**
* @brief Initializes the TouchSensing GPIOs.
* @param None
* @retval None
*/
void TSL_acq_InitGPIOs(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
uint32_t tmp_value_0;
uint32_t tmp_value_1;
//====================
// GPIOs configuration
//====================
// Enable GPIOs clocks
RCC->AHBENR |= (RCC_AHBENR_GPIOAEN | RCC_AHBENR_GPIOBEN | RCC_AHBENR_GPIOCEN
#if (TSC_GROUP7_ENABLED > 0) || (TSC_GROUP8_ENABLED > 0)
| RCC_AHBENR_GPIODEN | RCC_AHBENR_GPIOEEN
#endif
);
// Alternate function Output Open-Drain for Sampling Capacitor IOs
//----------------------------------------------------------------
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
// GPIOA
GPIO_InitStructure.GPIO_Pin = 0;
#if TSLPRM_TSC_GROUP1_IO1 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_0;
#endif
#if TSLPRM_TSC_GROUP1_IO2 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_1;
#endif
#if TSLPRM_TSC_GROUP1_IO3 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_2;
#endif
#if TSLPRM_TSC_GROUP1_IO4 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_3;
#endif
#if TSLPRM_TSC_GROUP2_IO1 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_4;
#endif
#if TSLPRM_TSC_GROUP2_IO2 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_5;
#endif
#if TSLPRM_TSC_GROUP2_IO3 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_6;
#endif
#if TSLPRM_TSC_GROUP2_IO4 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_7;
#endif
#if TSLPRM_TSC_GROUP4_IO1 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_9;
#endif
#if TSLPRM_TSC_GROUP4_IO2 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_10;
#endif
#if TSLPRM_TSC_GROUP4_IO3 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_11;
#endif
#if TSLPRM_TSC_GROUP4_IO4 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_12;
#endif
GPIO_Init(GPIOA, &GPIO_InitStructure);
// GPIOB
GPIO_InitStructure.GPIO_Pin = 0;
#if TSLPRM_TSC_GROUP3_IO2 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_0;
#endif
#if TSLPRM_TSC_GROUP3_IO3 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_1;
#endif
#if TSLPRM_TSC_GROUP3_IO4 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_2;
#endif
#if TSLPRM_TSC_GROUP5_IO1 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_3;
#endif
#if TSLPRM_TSC_GROUP5_IO2 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_4;
#endif
#if TSLPRM_TSC_GROUP5_IO3 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_6;
#endif
#if TSLPRM_TSC_GROUP5_IO4 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_7;
#endif
#if TSLPRM_TSC_GROUP6_IO1 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_11;
#endif
#if TSLPRM_TSC_GROUP6_IO2 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_12;
#endif
#if TSLPRM_TSC_GROUP6_IO3 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_13;
#endif
#if TSLPRM_TSC_GROUP6_IO4 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_14;
#endif
GPIO_Init(GPIOB, &GPIO_InitStructure);
// GPIOC
#if TSLPRM_TSC_GROUP3_IO1 == SAMPCAP
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_Init(GPIOC, &GPIO_InitStructure);
#endif
#if (TSC_GROUP8_ENABLED > 0)
// GPIOD
GPIO_InitStructure.GPIO_Pin = 0;
#if TSLPRM_TSC_GROUP8_IO1 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_12;
#endif
#if TSLPRM_TSC_GROUP8_IO2 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_13;
#endif
#if TSLPRM_TSC_GROUP8_IO3 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_14;
#endif
#if TSLPRM_TSC_GROUP8_IO4 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_15;
#endif
GPIO_Init(GPIOD, &GPIO_InitStructure);
#endif // TSC_GROUP8_ENABLED
#if (TSC_GROUP7_ENABLED > 0)
// GPIOE
GPIO_InitStructure.GPIO_Pin = 0;
#if TSLPRM_TSC_GROUP7_IO1 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_2;
#endif
#if TSLPRM_TSC_GROUP7_IO2 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_3;
#endif
#if TSLPRM_TSC_GROUP7_IO3 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_4;
#endif
#if TSLPRM_TSC_GROUP7_IO4 == SAMPCAP
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_5;
#endif
GPIO_Init(GPIOE, &GPIO_InitStructure);
#endif // TSC_GROUP7_ENABLED
// Alternate function Output Push-Pull for Channel and Shield IOs
//---------------------------------------------------------------
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
// GPIOA
GPIO_InitStructure.GPIO_Pin = 0;
#if (TSLPRM_TSC_GROUP1_IO1 == CHANNEL) || (TSLPRM_TSC_GROUP1_IO1 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_0;
#endif
#if (TSLPRM_TSC_GROUP1_IO2 == CHANNEL) || (TSLPRM_TSC_GROUP1_IO2 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_1;
#endif
#if (TSLPRM_TSC_GROUP1_IO3 == CHANNEL) || (TSLPRM_TSC_GROUP1_IO3 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_2;
#endif
#if (TSLPRM_TSC_GROUP1_IO4 == CHANNEL) || (TSLPRM_TSC_GROUP1_IO4 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_3;
#endif
#if (TSLPRM_TSC_GROUP2_IO1 == CHANNEL) || (TSLPRM_TSC_GROUP2_IO1 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_4;
#endif
#if (TSLPRM_TSC_GROUP2_IO2 == CHANNEL) || (TSLPRM_TSC_GROUP2_IO2 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_5;
#endif
#if (TSLPRM_TSC_GROUP2_IO3 == CHANNEL) || (TSLPRM_TSC_GROUP2_IO3 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_6;
#endif
#if (TSLPRM_TSC_GROUP2_IO4 == CHANNEL) || (TSLPRM_TSC_GROUP2_IO4 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_7;
#endif
#if (TSLPRM_TSC_GROUP4_IO1 == CHANNEL) || (TSLPRM_TSC_GROUP4_IO1 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_9;
#endif
#if (TSLPRM_TSC_GROUP4_IO2 == CHANNEL) || (TSLPRM_TSC_GROUP4_IO2 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_10;
#endif
#if (TSLPRM_TSC_GROUP4_IO3 == CHANNEL) || (TSLPRM_TSC_GROUP4_IO3 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_11;
#endif
#if (TSLPRM_TSC_GROUP4_IO4 == CHANNEL) || (TSLPRM_TSC_GROUP4_IO4 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_12;
#endif
GPIO_Init(GPIOA, &GPIO_InitStructure);
// GPIOB
GPIO_InitStructure.GPIO_Pin = 0;
#if (TSLPRM_TSC_GROUP3_IO2 == CHANNEL) || (TSLPRM_TSC_GROUP3_IO2 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_0;
#endif
#if (TSLPRM_TSC_GROUP3_IO3 == CHANNEL) || (TSLPRM_TSC_GROUP3_IO3 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_1;
#endif
#if (TSLPRM_TSC_GROUP3_IO4 == CHANNEL) || (TSLPRM_TSC_GROUP3_IO4 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_2;
#endif
#if (TSLPRM_TSC_GROUP5_IO1 == CHANNEL) || (TSLPRM_TSC_GROUP5_IO1 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_3;
#endif
#if (TSLPRM_TSC_GROUP5_IO2 == CHANNEL) || (TSLPRM_TSC_GROUP5_IO2 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_4;
#endif
#if (TSLPRM_TSC_GROUP5_IO3 == CHANNEL) || (TSLPRM_TSC_GROUP5_IO3 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_6;
#endif
#if (TSLPRM_TSC_GROUP5_IO4 == CHANNEL) || (TSLPRM_TSC_GROUP5_IO4 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_7;
#endif
#if (TSLPRM_TSC_GROUP6_IO1 == CHANNEL) || (TSLPRM_TSC_GROUP6_IO1 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_11;
#endif
#if (TSLPRM_TSC_GROUP6_IO2 == CHANNEL) || (TSLPRM_TSC_GROUP6_IO2 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_12;
#endif
#if (TSLPRM_TSC_GROUP6_IO3 == CHANNEL) || (TSLPRM_TSC_GROUP6_IO3 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_13;
#endif
#if (TSLPRM_TSC_GROUP6_IO4 == CHANNEL) || (TSLPRM_TSC_GROUP6_IO4 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_14;
#endif
GPIO_Init(GPIOB, &GPIO_InitStructure);
// GPIOC
#if (TSLPRM_TSC_GROUP3_IO1 == CHANNEL) || (TSLPRM_TSC_GROUP3_IO1 == SHIELD)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_Init(GPIOC, &GPIO_InitStructure);
#endif
#if (TSC_GROUP8_ENABLED > 0)
// GPIOD
GPIO_InitStructure.GPIO_Pin = 0;
#if (TSLPRM_TSC_GROUP8_IO1 == CHANNEL) || (TSLPRM_TSC_GROUP8_IO1 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_12;
#endif
#if (TSLPRM_TSC_GROUP8_IO2 == CHANNEL) || (TSLPRM_TSC_GROUP8_IO2 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_13;
#endif
#if (TSLPRM_TSC_GROUP8_IO3 == CHANNEL) || (TSLPRM_TSC_GROUP8_IO3 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_14;
#endif
#if (TSLPRM_TSC_GROUP8_IO4 == CHANNEL) || (TSLPRM_TSC_GROUP8_IO4 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_15;
#endif
GPIO_Init(GPIOD, &GPIO_InitStructure);
#endif // TSC_GROUP8_ENABLED
#if (TSC_GROUP7_ENABLED > 0)
// GPIOE
GPIO_InitStructure.GPIO_Pin = 0;
#if (TSLPRM_TSC_GROUP7_IO1 == CHANNEL) || (TSLPRM_TSC_GROUP7_IO1 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_2;
#endif
#if (TSLPRM_TSC_GROUP7_IO2 == CHANNEL) || (TSLPRM_TSC_GROUP7_IO2 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_3;
#endif
#if (TSLPRM_TSC_GROUP7_IO3 == CHANNEL) || (TSLPRM_TSC_GROUP7_IO3 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_4;
#endif
#if (TSLPRM_TSC_GROUP7_IO4 == CHANNEL) || (TSLPRM_TSC_GROUP7_IO4 == SHIELD)
GPIO_InitStructure.GPIO_Pin |= GPIO_Pin_5;
#endif
GPIO_Init(GPIOE, &GPIO_InitStructure);
#endif // TSC_GROUP7_ENABLED
// Set Alternate-Function AF3 for GPIOA and GPIOB
//-----------------------------------------------
// GPIOA
tmp_value_0 = 0;
tmp_value_1 = 0;
#if TSLPRM_TSC_GROUP1_IO1 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (0 * 4));
#endif
#if TSLPRM_TSC_GROUP1_IO2 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (1 * 4));
#endif
#if TSLPRM_TSC_GROUP1_IO3 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (2 * 4));
#endif
#if TSLPRM_TSC_GROUP1_IO4 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (3 * 4));
#endif
#if TSLPRM_TSC_GROUP2_IO1 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (4 * 4));
#endif
#if TSLPRM_TSC_GROUP2_IO2 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (5 * 4));
#endif
#if TSLPRM_TSC_GROUP2_IO3 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (6 * 4));
#endif
#if TSLPRM_TSC_GROUP2_IO4 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (7 * 4));
#endif
#if TSLPRM_TSC_GROUP4_IO1 != NU
tmp_value_1 |= (uint32_t)((uint32_t)3 << (1 * 4));
#endif
#if TSLPRM_TSC_GROUP4_IO2 != NU
tmp_value_1 |= (uint32_t)((uint32_t)3 << (2 * 4));
#endif
#if TSLPRM_TSC_GROUP4_IO3 != NU
tmp_value_1 |= (uint32_t)((uint32_t)3 << (3 * 4));
#endif
#if TSLPRM_TSC_GROUP4_IO4 != NU
tmp_value_1 |= (uint32_t)((uint32_t)3 << (4 * 4));
#endif
GPIOA->AFR[0] |= tmp_value_0;
GPIOA->AFR[1] |= tmp_value_1;
// GPIOB
tmp_value_0 = 0;
tmp_value_1 = 0;
#if TSLPRM_TSC_GROUP3_IO2 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (0 * 4));
#endif
#if TSLPRM_TSC_GROUP3_IO3 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (1 * 4));
#endif
#if TSLPRM_TSC_GROUP3_IO4 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (2 * 4));
#endif
#if TSLPRM_TSC_GROUP5_IO1 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (3 * 4));
#endif
#if TSLPRM_TSC_GROUP5_IO2 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (4 * 4));
#endif
#if TSLPRM_TSC_GROUP5_IO3 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (6 * 4));
#endif
#if TSLPRM_TSC_GROUP5_IO4 != NU
tmp_value_0 |= (uint32_t)((uint32_t)3 << (7 * 4));
#endif
#if TSLPRM_TSC_GROUP6_IO1 != NU
tmp_value_1 |= (uint32_t)((uint32_t)3 << (3 * 4));
#endif
#if TSLPRM_TSC_GROUP6_IO2 != NU
tmp_value_1 |= (uint32_t)((uint32_t)3 << (4 * 4));
#endif
#if TSLPRM_TSC_GROUP6_IO3 != NU
tmp_value_1 |= (uint32_t)((uint32_t)3 << (5 * 4));
#endif
#if TSLPRM_TSC_GROUP6_IO4 != NU
tmp_value_1 |= (uint32_t)((uint32_t)3 << (6 * 4));
#endif
GPIOB->AFR[0] |= tmp_value_0;
GPIOB->AFR[1] |= tmp_value_1;
// Set Alternate-Function AF1 for GPIOD and GPIOE
//-----------------------------------------------
#if (TSC_GROUP8_ENABLED > 0)
// GPIOD
tmp_value_1 = 0;
#if TSLPRM_TSC_GROUP8_IO1 != NU
tmp_value_1 |= (uint32_t)((uint32_t)1 << (4 * 4));
#endif
#if TSLPRM_TSC_GROUP8_IO2 != NU
tmp_value_1 |= (uint32_t)((uint32_t)1 << (5 * 4));
#endif
#if TSLPRM_TSC_GROUP8_IO3 != NU
tmp_value_1 |= (uint32_t)((uint32_t)1 << (6 * 4));
#endif
#if TSLPRM_TSC_GROUP8_IO4 != NU
tmp_value_1 |= (uint32_t)((uint32_t)1 << (7 * 4));
#endif
GPIOD->AFR[1] |= tmp_value_1;
#endif // TSC_GROUP8_ENABLED
#if (TSC_GROUP7_ENABLED > 0)
// GPIOE
tmp_value_0 = 0;
#if TSLPRM_TSC_GROUP7_IO1 != NU
tmp_value_0 |= (uint32_t)((uint32_t)1 << (2 * 4));
#endif
#if TSLPRM_TSC_GROUP7_IO2 != NU
tmp_value_0 |= (uint32_t)((uint32_t)1 << (3 * 4));
#endif
#if TSLPRM_TSC_GROUP7_IO3 != NU
tmp_value_0 |= (uint32_t)((uint32_t)1 << (4 * 4));
#endif
#if TSLPRM_TSC_GROUP7_IO4 != NU
tmp_value_0 |= (uint32_t)((uint32_t)1 << (5 * 4));
#endif
GPIOE->AFR[0] |= tmp_value_0;
#endif // TSC_GROUP7_ENABLED
//==================
// TSC configuration
//==================
// Enable TSC clock
RCC->AHBENR |= RCC_AHBENR_TSEN;
// Disable Schmitt trigger hysteresis on all used TS IOs (Channel, Shield and Sampling IOs)
//-----------------------------------------------------------------------------------------
tmp_value_0 = 0xFFFFFFFF;
#if TSLPRM_TSC_GROUP1_IO1 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 0);
#endif
#if TSLPRM_TSC_GROUP1_IO2 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 1);
#endif
#if TSLPRM_TSC_GROUP1_IO3 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 2);
#endif
#if TSLPRM_TSC_GROUP1_IO4 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 3);
#endif
#if TSLPRM_TSC_GROUP2_IO1 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 4);
#endif
#if TSLPRM_TSC_GROUP2_IO2 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 5);
#endif
#if TSLPRM_TSC_GROUP2_IO3 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 6);
#endif
#if TSLPRM_TSC_GROUP2_IO4 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 7);
#endif
#if TSLPRM_TSC_GROUP3_IO1 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 8);
#endif
#if TSLPRM_TSC_GROUP3_IO2 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 9);
#endif
#if TSLPRM_TSC_GROUP3_IO3 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 10);
#endif
#if TSLPRM_TSC_GROUP3_IO4 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 11);
#endif
#if TSLPRM_TSC_GROUP4_IO1 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 12);
#endif
#if TSLPRM_TSC_GROUP4_IO2 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 13);
#endif
#if TSLPRM_TSC_GROUP4_IO3 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 14);
#endif
#if TSLPRM_TSC_GROUP4_IO4 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 15);
#endif
#if TSLPRM_TSC_GROUP5_IO1 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 16);
#endif
#if TSLPRM_TSC_GROUP5_IO2 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 17);
#endif
#if TSLPRM_TSC_GROUP5_IO3 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 18);
#endif
#if TSLPRM_TSC_GROUP5_IO4 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 19);
#endif
#if TSLPRM_TSC_GROUP6_IO1 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 20);
#endif
#if TSLPRM_TSC_GROUP6_IO2 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 21);
#endif
#if TSLPRM_TSC_GROUP6_IO3 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 22);
#endif
#if TSLPRM_TSC_GROUP6_IO4 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 23);
#endif
#if (TSC_GROUP7_ENABLED > 0)
#if TSLPRM_TSC_GROUP7_IO1 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 24);
#endif
#if TSLPRM_TSC_GROUP7_IO2 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 25);
#endif
#if TSLPRM_TSC_GROUP7_IO3 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 26);
#endif
#if TSLPRM_TSC_GROUP7_IO4 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 27);
#endif
#endif // TSC_GROUP7_ENABLED
#if (TSC_GROUP8_ENABLED > 0)
#if TSLPRM_TSC_GROUP8_IO1 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 28);
#endif
#if TSLPRM_TSC_GROUP8_IO2 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 29);
#endif
#if TSLPRM_TSC_GROUP8_IO3 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 30);
#endif
#if TSLPRM_TSC_GROUP8_IO4 != NU
tmp_value_0 &= (uint32_t)~((uint32_t)1 << 31);
#endif
#endif // TSC_GROUP8_ENABLED
TSC->IOHCR &= tmp_value_0;
// Set Sampling Capacitor IOs
//---------------------------
tmp_value_0 = 0;
#if TSLPRM_TSC_GROUP1_IO1 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 0);
#endif
#if TSLPRM_TSC_GROUP1_IO2 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 1);
#endif
#if TSLPRM_TSC_GROUP1_IO3 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 2);
#endif
#if TSLPRM_TSC_GROUP1_IO4 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 3);
#endif
#if TSLPRM_TSC_GROUP2_IO1 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 4);
#endif
#if TSLPRM_TSC_GROUP2_IO2 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 5);
#endif
#if TSLPRM_TSC_GROUP2_IO3 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 6);
#endif
#if TSLPRM_TSC_GROUP2_IO4 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 7);
#endif
#if TSLPRM_TSC_GROUP3_IO1 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 8);
#endif
#if TSLPRM_TSC_GROUP3_IO2 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 9);
#endif
#if TSLPRM_TSC_GROUP3_IO3 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 10);
#endif
#if TSLPRM_TSC_GROUP3_IO4 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 11);
#endif
#if TSLPRM_TSC_GROUP4_IO1 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 12);
#endif
#if TSLPRM_TSC_GROUP4_IO2 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 13);
#endif
#if TSLPRM_TSC_GROUP4_IO3 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 14);
#endif
#if TSLPRM_TSC_GROUP4_IO4 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 15);
#endif
#if TSLPRM_TSC_GROUP5_IO1 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 16);
#endif
#if TSLPRM_TSC_GROUP5_IO2 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 17);
#endif
#if TSLPRM_TSC_GROUP5_IO3 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 18);
#endif
#if TSLPRM_TSC_GROUP5_IO4 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 19);
#endif
#if TSLPRM_TSC_GROUP6_IO1 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 20);
#endif
#if TSLPRM_TSC_GROUP6_IO2 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 21);
#endif
#if TSLPRM_TSC_GROUP6_IO3 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 22);
#endif
#if TSLPRM_TSC_GROUP6_IO4 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 23);
#endif
#if (TSC_GROUP7_ENABLED > 0)
#if TSLPRM_TSC_GROUP7_IO1 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 24);
#endif
#if TSLPRM_TSC_GROUP7_IO2 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 25);
#endif
#if TSLPRM_TSC_GROUP7_IO3 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 26);
#endif
#if TSLPRM_TSC_GROUP7_IO4 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 27);
#endif
#endif // TSC_GROUP7_ENABLED
#if (TSC_GROUP8_ENABLED > 0)
#if TSLPRM_TSC_GROUP8_IO1 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 28);
#endif
#if TSLPRM_TSC_GROUP8_IO2 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 29);
#endif
#if TSLPRM_TSC_GROUP8_IO3 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 30);
#endif
#if TSLPRM_TSC_GROUP8_IO4 == SAMPCAP
tmp_value_0 |= (uint32_t)((uint32_t)1 << 31);
#endif
#endif // TSC_GROUP8_ENABLED
TSC->IOSCR |= tmp_value_0;
}
/**
* @brief Initializes the acquisition module.
* @param None
* @retval Status
*/
TSL_Status_enum_T TSL_acq_Init(void)
{
#if TSLPRM_TSC_GPIO_CONFIG > 0
TSL_acq_InitGPIOs();
#endif
// Enable TSC clock
RCC->AHBENR |= RCC_AHBENR_TSEN;
// TSC enabled
TSC->CR = 0x01;
// Set CTPH
#if TSLPRM_TSC_CTPH > 0
TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_CTPH << 28) & 0xF0000000;
#endif
// Set CTPL
#if TSLPRM_TSC_CTPL > 0
TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_CTPL << 24) & 0x0F000000;
#endif
// Set SpreadSpectrum
#if TSLPRM_TSC_USE_SS > 0
TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_USE_SS << 16) & 0x00010000;
TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_SSD << 17) & 0x00FE0000;
TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_SSPSC << 15) & 0x00008000;
#endif
// Set Prescaler
#if TSLPRM_TSC_PGPSC > 0
TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_PGPSC << 12) & 0x00007000;
#endif
// Set Max Count
#if TSLPRM_TSC_MCV > 0
TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_MCV << 5) & 0x000000E0;
#endif
// Set IO default in Output PP Low to discharge all capacitors
TSC->CR &= (uint32_t)(~(1 << 4));
// Set Synchronization Mode
#if TSLPRM_TSC_AM > 0
// Set Synchronization Pin in Alternate-Function mode
RCC->AHBENR |= RCC_AHBENR_GPIOBEN; // Set GPIOB clock
#if TSLPRM_TSC_SYNC_PIN == 0 // PB08
GPIOB->MODER &= 0xFFFCFFFF;
GPIOB->MODER |= 0x00020000;
GPIOB->AFR[1] |= 0x00000003;
#else // PB10
GPIOB->MODER &= 0xFFCFFFFF;
GPIOB->MODER |= 0x00200000;
GPIOB->AFR[1] |= 0x00000300;
#endif
// Set Synchronization Polarity
TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_SYNC_POL << 3) & 0x00000008;
// Set acquisition mode
TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_AM << 2) & 0x00000004;
#endif
#if TSLPRM_USE_ACQ_INTERRUPT > 0
// Set both EOA and MCE interrupts
TSC->IER |= 0x03;
// Configure NVIC
NVIC_SetPriority(TSC_IRQn, 0);
NVIC_EnableIRQ(TSC_IRQn);
#endif
// Initialize the delay that will be used to discharge the capacitors
DelayDischarge = (uint32_t)((TSLPRM_DELAY_DISCHARGE_ALL * (uint32_t)(SystemCoreClock/1000000)) / 48);
return TSL_STATUS_OK;
}
/**
* @brief Configures a Bank.
* @param[in] idx_bk Index of the Bank to configure
* @retval Status
*/
TSL_Status_enum_T TSL_acq_BankConfig(TSL_tIndex_T idx_bk)
{
uint32_t idx_ch;
uint32_t objs; /* bit field of TSL_ObjStatus_enum_T type */
uint32_t gx;
uint32_t ioy;
CONST TSL_Bank_T *bank = &(TSL_Globals.Bank_Array[idx_bk]);
CONST TSL_ChannelSrc_T *pchSrc = bank->p_chSrc;
CONST TSL_ChannelDest_T *pchDest = bank->p_chDest;
// Check parameters (if USE_FULL_ASSERT is defined)
assert_param(IS_BANK_INDEX_OK(idx_bk));
// Mark the current bank processed
TSL_Globals.This_Bank = idx_bk;
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Enable the Gx_IOy used as channels (channels + shield)
TSC->IOCCR = bank->msk_IOCCR_channels;
// Enable acquisition on selected Groups
TSC->IOGCSR = bank->msk_IOGCSR_groups;
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// For all channels of the bank check if they are OFF or BURST_ONLY
// and set acquisition status flag
for (idx_ch = 0; idx_ch < bank->NbChannels; idx_ch++)
{
// Check Object status flag
objs = bank->p_chData[pchDest->IdxDest].Flags.ObjStatus;
if (objs != TSL_OBJ_STATUS_ON)
{
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Get the Channel Group mask
gx = pchSrc->msk_IOGCSR_group;
// Stop acquisition of the Group
TSC->IOGCSR &= (uint32_t)~gx;
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
if (objs == TSL_OBJ_STATUS_OFF)
{
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Get the Channel IO mask
ioy = pchSrc->msk_IOCCR_channel;
// Stop Burst of the Channel
TSC->IOCCR &= (uint32_t)~ioy;
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
}
}
// Next channel
pchSrc++;
pchDest++;
}
return TSL_STATUS_OK;
}
/**
* @brief Start acquisition on a previously configured bank
* @param None
* @retval None
*/
void TSL_acq_BankStartAcq(void)
{
// Clear both EOAIC and MCEIC flags
TSC->ICR |= 0x03;
// Wait capacitors discharge
SoftDelay(DelayDischarge);
#if TSLPRM_TSC_IODEF > 0 // Default = Input Floating
// Set IO default in Input Floating
TSC->CR |= (1 << 4);
#endif
// Start acquisition
TSC->CR |= 0x02;
}
/**
* @brief Wait end of acquisition
* @param None
* @retval Status
*/
TSL_Status_enum_T TSL_acq_BankWaitEOC(void)
{
TSL_Status_enum_T retval = TSL_STATUS_BUSY;
// Check EOAF flag
if (TSC->ISR & 0x01)
{
#if TSLPRM_TSC_IODEF > 0 // Default = Input Floating
// Set IO default in Output PP Low to discharge all capacitors
TSC->CR &= (uint32_t)(~(1 << 4));
#endif
// Check MCEF flag
if (TSC->ISR & 0x02)
{
retval = TSL_STATUS_ERROR;
}
else
{
retval = TSL_STATUS_OK;
}
}
return retval;
}
/**
* @brief Return the current measure
* @param[in] index Index of the measure source
* @retval Measure
*/
TSL_tMeas_T TSL_acq_GetMeas(TSL_tIndex_T index)
{
// Check parameters (if USE_FULL_ASSERT is defined)
#if (TSC_GROUP7_ENABLED > 0) || (TSC_GROUP8_ENABLED > 0)
assert_param(IS_SRC_INDEX_0_7_OK(idx_bk));
#else
assert_param(IS_SRC_INDEX_0_5_OK(idx_bk));
#endif
return((TSL_tMeas_T)(TSC->IOGXCR[index]));
}
/**
* @brief Compute the Delta value
* @param[in] ref Reference value
* @param[in] meas Last Measurement value
* @retval Delta value
*/
TSL_tDelta_T TSL_acq_ComputeDelta(TSL_tRef_T ref, TSL_tMeas_T meas)
{
return((TSL_tDelta_T)(ref - meas));
}
/**
* @brief Compute the Measurement value
* @param[in] ref Reference value
* @param[in] delta Delta value
* @retval Measurement value
*/
TSL_tMeas_T TSL_acq_ComputeMeas(TSL_tRef_T ref, TSL_tDelta_T delta)
{
return((TSL_tMeas_T)(ref - delta));
}
/**
* @brief Check noise (not used)
* @param None
* @retval Status
*/
TSL_AcqStatus_enum_T TSL_acq_CheckNoise(void)
{
return TSL_ACQ_STATUS_OK;
}
/**
* @brief Check if a filter must be used on the current channel (not used)
* @param[in] pCh Pointer on the channel data information
* @retval Result TRUE if a filter can be applied
*/
TSL_Bool_enum_T TSL_acq_UseFilter(TSL_ChannelData_T *pCh)
{
return TSL_TRUE;
}
/**
* @brief Test if the Reference is incorrect (not used)
* @param[in] pCh Pointer on the channel data information
* @retval Result TRUE if the Reference is out of range
*/
TSL_Bool_enum_T TSL_acq_TestReferenceOutOfRange(TSL_ChannelData_T *pCh)
{
return TSL_FALSE;
}
/**
* @brief Test if the measure has crossed the reference target (not used)
* @param[in] pCh Pointer on the channel data information
* @param[in] new_meas Measure of the last acquisition on this channel
* @retval Result TRUE if the Reference is valid
*/
TSL_Bool_enum_T TSL_acq_TestFirstReferenceIsValid(TSL_ChannelData_T *pCh, TSL_tMeas_T new_meas)
{
return TSL_TRUE;
}
#if defined(__IAR_SYSTEMS_ICC__) // IAR/EWARM
#pragma optimize=low
#elif defined(__CC_ARM) // Keil/MDK-ARM
#pragma O1
#pragma Ospace
#elif defined(__TASKING__) // Altium/Tasking
#pragma optimize O0
#elif defined(__GNUC__) // Atollic/True Studio + Raisonance/RKit
#pragma GCC push_options
#pragma GCC optimize ("O0")
#endif
/**
* @brief Software delay (private routine)
* @param val Wait delay
* @retval None
* @note Measurements done with HCLK=48MHz and Keil/MDK-ARM compiler
* val = 500: ~ 53µs
* val = 1000: ~106µs
* val = 2000: ~210µs
*/
void SoftDelay(uint32_t val)
{
uint32_t idx;
for (idx = val; idx > 0; idx--)
{}
}
#if defined(__TASKING__)
#pragma endoptimize
#endif
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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