ST
PSRAM example.
Dependencies: BSP_DISCO_F413ZH mbed
Diff: main.cpp
- Revision:
- 1:61482ef96890
- Parent:
- 0:e86d70f1f2ce
--- a/main.cpp Tue May 23 10:50:50 2017 +0200
+++ b/main.cpp Wed Sep 27 07:47:28 2017 +0000
@@ -3,48 +3,25 @@
#include "stm32f413h_discovery_lcd.h"
#include "stm32f413h_discovery_psram.h"
-/** @addtogroup STM32F7xx_HAL_Examples
- * @{
- */
-
-/** @addtogroup BSP
- * @{
- */
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
#define BUFFER_SIZE ((uint32_t)0x1000)
#define PSRAM_WRITE_READ_ADDR ((uint32_t)0x0800)
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
+
uint16_t sram_aTxBuffer[BUFFER_SIZE];
uint16_t sram_aRxBuffer[BUFFER_SIZE];
+
uint8_t ubSramWrite = 0, ubSramRead = 0, ubSramInit = 0, ubCompare = 0;
__IO uint8_t write_complete = 0;
-/* Private function prototypes -----------------------------------------------*/
-static void PSRAM_SetHint(void);
+
+static void print_demo_title(void);
static void Fill_Buffer(uint16_t *pBuffer, uint32_t uwBufferLength, uint32_t uwOffset);
static uint8_t Buffercmp(uint16_t* pBuffer1, uint16_t* pBuffer2, uint16_t BufferLength);
-static uint8_t CheckForUserInput(void);
-/* Private functions ---------------------------------------------------------*/
-/**
- * @brief PSRAM Demo
- * @param None
- * @retval None
- */
int main()
{
- BSP_LCD_Init();
-
- PSRAM_SetHint();
-
- /* Disable the LCD to avoid the refrech from the SDRAM */
- BSP_LCD_DisplayOff();
+ print_demo_title();
/*##-1- Configure the PSRAM device ##########################################*/
- /* PSRAM device configuration */
- if(BSP_PSRAM_Init() != PSRAM_OK)
+ if (BSP_PSRAM_Init() != PSRAM_OK)
{
ubSramInit++;
}
@@ -54,13 +31,13 @@
Fill_Buffer(sram_aTxBuffer, BUFFER_SIZE, 0xC20F);
/* Write data to the PSRAM memory */
- if(BSP_PSRAM_WriteData(PSRAM_DEVICE_ADDR + PSRAM_WRITE_READ_ADDR, sram_aTxBuffer, BUFFER_SIZE) != PSRAM_OK)
+ if (BSP_PSRAM_WriteData(PSRAM_DEVICE_ADDR + PSRAM_WRITE_READ_ADDR, sram_aTxBuffer, BUFFER_SIZE) != PSRAM_OK)
{
ubSramWrite++;
}
/* Read back data from the PSRAM memory */
- if(BSP_PSRAM_ReadData(PSRAM_DEVICE_ADDR + PSRAM_WRITE_READ_ADDR, sram_aRxBuffer, BUFFER_SIZE) != PSRAM_OK)
+ if (BSP_PSRAM_ReadData(PSRAM_DEVICE_ADDR + PSRAM_WRITE_READ_ADDR, sram_aRxBuffer, BUFFER_SIZE) != PSRAM_OK)
{
ubSramRead++;
}
@@ -69,158 +46,58 @@
/* Enable the LCD */
BSP_LCD_DisplayOn();
- if(ubSramInit != 0)
- {
- BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"PSRAM Initialization : FAILED.", LEFT_MODE);
- BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"PSRAM Test Aborted.", LEFT_MODE);
- ubSramInit = 0xFF;
- }
- else
+ if (ubSramInit != 0)
{
- BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"PSRAM Initialization : OK.", LEFT_MODE);
- ubSramInit = 0;
- }
- if(ubSramWrite != 0)
- {
- BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"PSRAM WRITE : FAILED.", LEFT_MODE);
- BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"PSRAM Test Aborted.", LEFT_MODE);
- ubSramWrite = 0xFF;
+ BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"PSRAM Initialization FAIL", LEFT_MODE);
+ BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"PSRAM Test Aborted", LEFT_MODE);
+ while(1);
}
else
{
- BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"PSRAM WRITE : OK.", LEFT_MODE);
- ubSramWrite = 0;
- }
- if(ubSramRead != 0)
- {
- BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"PSRAM READ : FAILED.", LEFT_MODE);
- BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"PSRAM Test Aborted.", LEFT_MODE);
- ubSramRead = 0xFF;
+ BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"PSRAM Initialization OK", LEFT_MODE);
}
- else
+
+ if (ubSramWrite != 0)
{
- BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"PSRAM READ : OK.", LEFT_MODE);
- ubSramRead = 0;
- }
-
- if(Buffercmp(sram_aRxBuffer, sram_aTxBuffer, BUFFER_SIZE) > 0)
- {
- BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"PSRAM COMPARE : FAILED.", LEFT_MODE);
- BSP_LCD_DisplayStringAt(20, 160, (uint8_t *)"PSRAM Test Aborted.", LEFT_MODE);
- ubCompare ++;
+ BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"PSRAM WRITE FAIL", LEFT_MODE);
+ BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"PSRAM Test Aborted", LEFT_MODE);
+ while(1);
}
else
{
- BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"PSRAM Test : OK.", LEFT_MODE);
- ubCompare =0;
+ BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"PSRAM WRITE OK", LEFT_MODE);
}
- while (1)
- {
- if(CheckForUserInput() > 0)
- {
- return 0;
- }
- }
-}
-
-/**
- * @brief PSRAM Demo
- * @param None
- * @retval None
- */
-void PSRAM_DMA_demo (void)
-{
- PSRAM_SetHint();
-
- /* Disable the LCD to avoid the refrech from the PSRAM */
- BSP_LCD_DisplayOff();
-
- /*##-1- Configure the PSRAM device ##########################################*/
- /* PSRAM device configuration */
- if(BSP_PSRAM_Init() != PSRAM_OK)
+ if (ubSramRead != 0)
{
- ubSramInit++;
- }
-
- /*##-2- PSRAM memory read/write access ######################################*/
- /* Fill the buffer to write */
- Fill_Buffer(sram_aTxBuffer, BUFFER_SIZE, 0xC20F);
-
- /* Write data to the PSRAM memory */
- if(BSP_PSRAM_WriteData_DMA(PSRAM_DEVICE_ADDR + PSRAM_WRITE_READ_ADDR, sram_aTxBuffer, BUFFER_SIZE) != PSRAM_OK)
- {
- ubSramWrite++;
- }
-
-
- /* Wait for Transfer complete */
- while(write_complete == 0);
-
- /* Read back data from the PSRAM memory */
- if(BSP_PSRAM_ReadData_DMA(PSRAM_DEVICE_ADDR + PSRAM_WRITE_READ_ADDR, sram_aRxBuffer, BUFFER_SIZE) != PSRAM_OK)
- {
- ubSramRead++;
- }
-
- /*##-3- Checking data integrity ############################################*/
- /* Enable the LCD */
- BSP_LCD_DisplayOn();
-
- if(ubSramInit != 0)
- {
- BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"PSRAM Initialization : FAILED.", LEFT_MODE);
- BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"PSRAM Test Aborted.", LEFT_MODE);
+ BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"PSRAM READ FAIL", LEFT_MODE);
+ BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"PSRAM Test Aborted", LEFT_MODE);
+ while(1);
}
else
{
- BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"PSRAM Initialization : OK.", LEFT_MODE);
- }
- if(ubSramWrite != 0)
- {
- BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"PSRAM WRITE : FAILED.", LEFT_MODE);
- BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"PSRAM Test Aborted.", LEFT_MODE);
+ BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"PSRAM READ OK", LEFT_MODE);
}
- else
+
+ if (Buffercmp(sram_aRxBuffer, sram_aTxBuffer, BUFFER_SIZE) > 0)
{
- BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"PSRAM WRITE : OK.", LEFT_MODE);
- }
- if(ubSramRead != 0)
- {
- BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"PSRAM READ : FAILED.", LEFT_MODE);
- BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"PSRAM Test Aborted.", LEFT_MODE);
+ BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"PSRAM COMPARE FAIL", LEFT_MODE);
+ BSP_LCD_DisplayStringAt(20, 160, (uint8_t *)"PSRAM Test Aborted", LEFT_MODE);
+ while(1);
}
else
{
- BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"PSRAM READ : OK.", LEFT_MODE);
- }
-
- if(Buffercmp(sram_aRxBuffer, sram_aTxBuffer, BUFFER_SIZE) > 0)
- {
- BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"PSRAM COMPARE : FAILED.", LEFT_MODE);
- BSP_LCD_DisplayStringAt(20, 160, (uint8_t *)"PSRAM Test Aborted.", LEFT_MODE);
- }
- else
- {
- BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"PSRAM Test : OK.", LEFT_MODE);
+ BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"PSRAM Test OK", LEFT_MODE);
}
- while (1)
- {
- if(CheckForUserInput() > 0)
- {
- return;
- }
- }
+ BSP_LCD_DisplayStringAt(0, 200, (uint8_t *)"Demo finished OK", CENTER_MODE);
+ while(1);
}
-/**
- * @brief Display PSRAM Demo Hint
- * @param None
- * @retval None
- */
-static void PSRAM_SetHint(void)
+static void print_demo_title(void)
{
+ BSP_LCD_Init();
+
/* Clear the LCD */
BSP_LCD_Clear(LCD_COLOR_WHITE);
@@ -242,6 +119,9 @@
BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
+
+ /* Disable the LCD to avoid refresh from the SDRAM */
+ BSP_LCD_DisplayOff();
}
/**
@@ -284,32 +164,3 @@
return 0;
}
-
-/**
- * @brief DMA transfer complete callback.
- * @param hdma: pointer to a SRAM_HandleTypeDef structure that contains
- * the configuration information for SRAM module.
- * @retval None
- */
-void HAL_SRAM_DMA_XferCpltCallback(DMA_HandleTypeDef *hdma)
-{
- write_complete = 1;
-}
-
-uint8_t CheckForUserInput(void)
-{
- if(BSP_PB_GetState(BUTTON_WAKEUP) != GPIO_PIN_RESET)
- {
- while (BSP_PB_GetState(BUTTON_WAKEUP) != GPIO_PIN_RESET);
- return 1 ;
- }
- return 0;
-}
-/**
- * @}
- */
-
-/**
- * @}
- */
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/