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/**
******************************************************************************
* @file k_bsp.c
* @author MCD Application Team
* @brief This file provides the kernel bsp functions
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "k_bsp.h"
/** @addtogroup CORE
* @{
*/
/** @defgroup KERNEL_BSP
* @brief Kernel BSP routines
* @{
*/
/* External variables --------------------------------------------------------*/
extern uint8_t SelLayer;
extern uint8_t I2C_Address;
TS_StateTypeDef TS_State = {0};
/* Private typedef -----------------------------------------------------------*/
/* Private defines -----------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/**
* @brief Initializes LEDs, SDRAM, touch screen, CRC and SRAM.
* @param None
* @retval None
*/
void k_BspInit(void)
{
/* Initialize the NOR */
BSP_QSPI_Init();
BSP_QSPI_EnableMemoryMappedMode();
/* Initialize the SDRAM */
BSP_SDRAM_Init();
#if defined(USE_STM32469I_DISCO_REVC)
/* Reset the LCD */
k_Bsp_LCD_Reset();
#endif
HAL_Delay(100);
/* Initialize the Touch screen */
BSP_TS_Init(800, 480);
/* Enable CRC to Unlock GUI */
__HAL_RCC_CRC_CLK_ENABLE();
/* Enable Back up SRAM */
__HAL_RCC_BKPSRAM_CLK_ENABLE();
}
/**
* @brief Read the coordinate of the point touched and assign their
* value to the variables u32_TSXCoordinate and u32_TSYCoordinate
* @param None
* @retval None
*/
void k_TouchUpdate(void)
{
static GUI_PID_STATE TS_State = {0, 0, 0, 0};
__IO TS_StateTypeDef ts;
uint16_t xDiff, yDiff;
BSP_TS_GetState((TS_StateTypeDef *)&ts);
if((ts.touchX[0] >= LCD_GetXSize()) ||(ts.touchY[0] >= LCD_GetYSize()) )
{
ts.touchX[0] = 0;
ts.touchY[0] = 0;
}
xDiff = (TS_State.x > ts.touchX[0]) ? (TS_State.x - ts.touchX[0]) : (ts.touchX[0] - TS_State.x);
yDiff = (TS_State.y > ts.touchY[0]) ? (TS_State.y - ts.touchY[0]) : (ts.touchY[0] - TS_State.y);
if((TS_State.Pressed != ts.touchDetected ) ||
(xDiff > 20 )||
(yDiff > 20))
{
TS_State.Pressed = ts.touchDetected;
TS_State.Layer = SelLayer;
if(ts.touchDetected)
{
TS_State.x = ts.touchX[0];
if(I2C_Address == TS_I2C_ADDRESS)
{
if(ts.touchY[0] < 240)
{
TS_State.y = ts.touchY[0];
}
else
{
TS_State.y = (ts.touchY[0] * 480) / 450;
}
}
else
{
TS_State.y = ts.touchY[0];
}
GUI_TOUCH_StoreStateEx(&TS_State);
}
else
{
GUI_TOUCH_StoreStateEx(&TS_State);
TS_State.x = 0;
TS_State.y = 0;
}
}
}
#if defined(USE_STM32469I_DISCO_REVC)
/* PCB REV A : nothing to be done, XRES of LCD is not cabled */
/**
* @brief Reset the LCD
* @param None
* @retval None
*/
void k_Bsp_LCD_Reset(void)
{
/* PCB REV B : XRES of LCD connected to PH7 (active low) */
GPIO_InitTypeDef gpio_init_structure;
__HAL_RCC_GPIOH_CLK_ENABLE();
/* Configure the GPIO on PH7 */
gpio_init_structure.Pin = GPIO_PIN_7;
gpio_init_structure.Mode = GPIO_MODE_OUTPUT_PP;
gpio_init_structure.Pull = GPIO_NOPULL;
gpio_init_structure.Speed = GPIO_SPEED_MEDIUM;
HAL_GPIO_Init( GPIOH, &gpio_init_structure );
/* Activate XRES active low */
HAL_GPIO_WritePin( GPIOH, GPIO_PIN_7, GPIO_PIN_RESET );
/* wait 20 ms */
HAL_Delay(20);
/* Deactivate XRES */
HAL_GPIO_WritePin( GPIOH, GPIO_PIN_7, GPIO_PIN_SET );
}
#endif /* USE_STM32469I_DISCO_REVC */
/**
* @}
*/
/**
* @}
*/