ST / Mbed 2 deprecated DISCO_F413ZH-PSRAM-demo

PSRAM example.

Dependencies:   BSP_DISCO_F413ZH mbed

main.cpp@1:61482ef96890, 2017-09-27 (annotated)

Committer:
bcostm
Date:
Wed Sep 27 07:47:28 2017 +0000
Revision:
1:61482ef96890
Parent:
0:e86d70f1f2ce 
Add mbed library v151 + BSP library + improvements

Who changed what in which revision?

UserRevisionLine numberNew contents of line
arostm 0:e86d70f1f2ce 1 #include "mbed.h"
arostm 0:e86d70f1f2ce 2 #include "stm32f413h_discovery.h"
arostm 0:e86d70f1f2ce 3 #include "stm32f413h_discovery_lcd.h"
arostm 0:e86d70f1f2ce 4 #include "stm32f413h_discovery_psram.h"
arostm 0:e86d70f1f2ce 5
arostm 0:e86d70f1f2ce 6 #define BUFFER_SIZE ((uint32_t)0x1000)
arostm 0:e86d70f1f2ce 7 #define PSRAM_WRITE_READ_ADDR ((uint32_t)0x0800)
bcostm 1:61482ef96890 8
arostm 0:e86d70f1f2ce 9 uint16_t sram_aTxBuffer[BUFFER_SIZE];
arostm 0:e86d70f1f2ce 10 uint16_t sram_aRxBuffer[BUFFER_SIZE];
bcostm 1:61482ef96890 11
arostm 0:e86d70f1f2ce 12 uint8_t ubSramWrite = 0, ubSramRead = 0, ubSramInit = 0, ubCompare = 0;
arostm 0:e86d70f1f2ce 13 __IO uint8_t write_complete = 0;
bcostm 1:61482ef96890 14
bcostm 1:61482ef96890 15 static void print_demo_title(void);
arostm 0:e86d70f1f2ce 16 static void Fill_Buffer(uint16_t *pBuffer, uint32_t uwBufferLength, uint32_t uwOffset);
arostm 0:e86d70f1f2ce 17 static uint8_t Buffercmp(uint16_t* pBuffer1, uint16_t* pBuffer2, uint16_t BufferLength);
arostm 0:e86d70f1f2ce 18
arostm 0:e86d70f1f2ce 19 int main()
arostm 0:e86d70f1f2ce 20 {
bcostm 1:61482ef96890 21 print_demo_title();
arostm 0:e86d70f1f2ce 22
arostm 0:e86d70f1f2ce 23 /*##-1- Configure the PSRAM device ##########################################*/
bcostm 1:61482ef96890 24 if (BSP_PSRAM_Init() != PSRAM_OK)
arostm 0:e86d70f1f2ce 25 {
arostm 0:e86d70f1f2ce 26 ubSramInit++;
arostm 0:e86d70f1f2ce 27 }
arostm 0:e86d70f1f2ce 28
arostm 0:e86d70f1f2ce 29 /*##-2- PSRAM memory read/write access ######################################*/
arostm 0:e86d70f1f2ce 30 /* Fill the buffer to write */
arostm 0:e86d70f1f2ce 31 Fill_Buffer(sram_aTxBuffer, BUFFER_SIZE, 0xC20F);
arostm 0:e86d70f1f2ce 32
arostm 0:e86d70f1f2ce 33 /* Write data to the PSRAM memory */
bcostm 1:61482ef96890 34 if (BSP_PSRAM_WriteData(PSRAM_DEVICE_ADDR + PSRAM_WRITE_READ_ADDR, sram_aTxBuffer, BUFFER_SIZE) != PSRAM_OK)
arostm 0:e86d70f1f2ce 35 {
arostm 0:e86d70f1f2ce 36 ubSramWrite++;
arostm 0:e86d70f1f2ce 37 }
arostm 0:e86d70f1f2ce 38
arostm 0:e86d70f1f2ce 39 /* Read back data from the PSRAM memory */
bcostm 1:61482ef96890 40 if (BSP_PSRAM_ReadData(PSRAM_DEVICE_ADDR + PSRAM_WRITE_READ_ADDR, sram_aRxBuffer, BUFFER_SIZE) != PSRAM_OK)
arostm 0:e86d70f1f2ce 41 {
arostm 0:e86d70f1f2ce 42 ubSramRead++;
arostm 0:e86d70f1f2ce 43 }
arostm 0:e86d70f1f2ce 44
arostm 0:e86d70f1f2ce 45 /*##-3- Checking data integrity ############################################*/
arostm 0:e86d70f1f2ce 46 /* Enable the LCD */
arostm 0:e86d70f1f2ce 47 BSP_LCD_DisplayOn();
arostm 0:e86d70f1f2ce 48
bcostm 1:61482ef96890 49 if (ubSramInit != 0)
arostm 0:e86d70f1f2ce 50 {
bcostm 1:61482ef96890 51 BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"PSRAM Initialization FAIL", LEFT_MODE);
bcostm 1:61482ef96890 52 BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"PSRAM Test Aborted", LEFT_MODE);
bcostm 1:61482ef96890 53 while(1);
arostm 0:e86d70f1f2ce 54 }
arostm 0:e86d70f1f2ce 55 else
arostm 0:e86d70f1f2ce 56 {
bcostm 1:61482ef96890 57 BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"PSRAM Initialization OK", LEFT_MODE);
arostm 0:e86d70f1f2ce 58 }
bcostm 1:61482ef96890 59
bcostm 1:61482ef96890 60 if (ubSramWrite != 0)
arostm 0:e86d70f1f2ce 61 {
bcostm 1:61482ef96890 62 BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"PSRAM WRITE FAIL", LEFT_MODE);
bcostm 1:61482ef96890 63 BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"PSRAM Test Aborted", LEFT_MODE);
bcostm 1:61482ef96890 64 while(1);
arostm 0:e86d70f1f2ce 65 }
arostm 0:e86d70f1f2ce 66 else
arostm 0:e86d70f1f2ce 67 {
bcostm 1:61482ef96890 68 BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"PSRAM WRITE OK", LEFT_MODE);
arostm 0:e86d70f1f2ce 69 }
arostm 0:e86d70f1f2ce 70
bcostm 1:61482ef96890 71 if (ubSramRead != 0)
arostm 0:e86d70f1f2ce 72 {
bcostm 1:61482ef96890 73 BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"PSRAM READ FAIL", LEFT_MODE);
bcostm 1:61482ef96890 74 BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"PSRAM Test Aborted", LEFT_MODE);
bcostm 1:61482ef96890 75 while(1);
arostm 0:e86d70f1f2ce 76 }
arostm 0:e86d70f1f2ce 77 else
arostm 0:e86d70f1f2ce 78 {
bcostm 1:61482ef96890 79 BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"PSRAM READ OK", LEFT_MODE);
arostm 0:e86d70f1f2ce 80 }
bcostm 1:61482ef96890 81
bcostm 1:61482ef96890 82 if (Buffercmp(sram_aRxBuffer, sram_aTxBuffer, BUFFER_SIZE) > 0)
arostm 0:e86d70f1f2ce 83 {
bcostm 1:61482ef96890 84 BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"PSRAM COMPARE FAIL", LEFT_MODE);
bcostm 1:61482ef96890 85 BSP_LCD_DisplayStringAt(20, 160, (uint8_t *)"PSRAM Test Aborted", LEFT_MODE);
bcostm 1:61482ef96890 86 while(1);
arostm 0:e86d70f1f2ce 87 }
arostm 0:e86d70f1f2ce 88 else
arostm 0:e86d70f1f2ce 89 {
bcostm 1:61482ef96890 90 BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"PSRAM Test OK", LEFT_MODE);
arostm 0:e86d70f1f2ce 91 }
arostm 0:e86d70f1f2ce 92
bcostm 1:61482ef96890 93 BSP_LCD_DisplayStringAt(0, 200, (uint8_t *)"Demo finished OK", CENTER_MODE);
bcostm 1:61482ef96890 94 while(1);
arostm 0:e86d70f1f2ce 95 }
arostm 0:e86d70f1f2ce 96
bcostm 1:61482ef96890 97 static void print_demo_title(void)
arostm 0:e86d70f1f2ce 98 {
bcostm 1:61482ef96890 99 BSP_LCD_Init();
bcostm 1:61482ef96890 100
arostm 0:e86d70f1f2ce 101 /* Clear the LCD */
arostm 0:e86d70f1f2ce 102 BSP_LCD_Clear(LCD_COLOR_WHITE);
arostm 0:e86d70f1f2ce 103
arostm 0:e86d70f1f2ce 104 /* Set LCD Demo description */
arostm 0:e86d70f1f2ce 105 BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
arostm 0:e86d70f1f2ce 106 BSP_LCD_FillRect(0, 0, BSP_LCD_GetXSize(), 80);
arostm 0:e86d70f1f2ce 107 BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
arostm 0:e86d70f1f2ce 108 BSP_LCD_SetBackColor(LCD_COLOR_GREEN);
arostm 0:e86d70f1f2ce 109 BSP_LCD_SetFont(&Font24);
arostm 0:e86d70f1f2ce 110 BSP_LCD_DisplayStringAt(0, 0, (uint8_t *)"PSRAM", CENTER_MODE);
arostm 0:e86d70f1f2ce 111 BSP_LCD_SetFont(&Font12);
arostm 0:e86d70f1f2ce 112 BSP_LCD_DisplayStringAt(0, 30, (uint8_t *)"This example shows how to write", CENTER_MODE);
arostm 0:e86d70f1f2ce 113 BSP_LCD_DisplayStringAt(0, 45, (uint8_t *)"and read data on the PSRAM", CENTER_MODE);
arostm 0:e86d70f1f2ce 114
arostm 0:e86d70f1f2ce 115 /* Set the LCD Text Color */
arostm 0:e86d70f1f2ce 116 BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
arostm 0:e86d70f1f2ce 117 BSP_LCD_DrawRect(10, 90, BSP_LCD_GetXSize() - 20, BSP_LCD_GetYSize()- 100);
arostm 0:e86d70f1f2ce 118 BSP_LCD_DrawRect(11, 91, BSP_LCD_GetXSize() - 22, BSP_LCD_GetYSize()- 102);
arostm 0:e86d70f1f2ce 119
arostm 0:e86d70f1f2ce 120 BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
arostm 0:e86d70f1f2ce 121 BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
bcostm 1:61482ef96890 122
bcostm 1:61482ef96890 123 /* Disable the LCD to avoid refresh from the SDRAM */
bcostm 1:61482ef96890 124 BSP_LCD_DisplayOff();
arostm 0:e86d70f1f2ce 125 }
arostm 0:e86d70f1f2ce 126
arostm 0:e86d70f1f2ce 127 /**
arostm 0:e86d70f1f2ce 128 * @brief Fills buffer with user predefined data.
arostm 0:e86d70f1f2ce 129 * @param pBuffer: pointer on the buffer to fill
arostm 0:e86d70f1f2ce 130 * @param uwBufferLength: size of the buffer to fill
arostm 0:e86d70f1f2ce 131 * @param uwOffset: first value to fill on the buffer
arostm 0:e86d70f1f2ce 132 * @retval None
arostm 0:e86d70f1f2ce 133 */
arostm 0:e86d70f1f2ce 134 static void Fill_Buffer(uint16_t *pBuffer, uint32_t uwBufferLength, uint32_t uwOffset)
arostm 0:e86d70f1f2ce 135 {
arostm 0:e86d70f1f2ce 136 uint32_t tmpindex = 0;
arostm 0:e86d70f1f2ce 137
arostm 0:e86d70f1f2ce 138 /* Put in global buffer different values */
arostm 0:e86d70f1f2ce 139 for (tmpindex = 0; tmpindex < uwBufferLength; tmpindex++ )
arostm 0:e86d70f1f2ce 140 {
arostm 0:e86d70f1f2ce 141 pBuffer[tmpindex] = tmpindex + uwOffset;
arostm 0:e86d70f1f2ce 142 }
arostm 0:e86d70f1f2ce 143 }
arostm 0:e86d70f1f2ce 144
arostm 0:e86d70f1f2ce 145 /**
arostm 0:e86d70f1f2ce 146 * @brief Compares two buffers.
arostm 0:e86d70f1f2ce 147 * @param pBuffer1, pBuffer2: buffers to be compared.
arostm 0:e86d70f1f2ce 148 * @param BufferLength: buffer's length
arostm 0:e86d70f1f2ce 149 * @retval 1: pBuffer identical to pBuffer1
arostm 0:e86d70f1f2ce 150 * 0: pBuffer differs from pBuffer1
arostm 0:e86d70f1f2ce 151 */
arostm 0:e86d70f1f2ce 152 static uint8_t Buffercmp(uint16_t* pBuffer1, uint16_t* pBuffer2, uint16_t BufferLength)
arostm 0:e86d70f1f2ce 153 {
arostm 0:e86d70f1f2ce 154 while (BufferLength--)
arostm 0:e86d70f1f2ce 155 {
arostm 0:e86d70f1f2ce 156 if (*pBuffer1 != *pBuffer2)
arostm 0:e86d70f1f2ce 157 {
arostm 0:e86d70f1f2ce 158 return 1;
arostm 0:e86d70f1f2ce 159 }
arostm 0:e86d70f1f2ce 160
arostm 0:e86d70f1f2ce 161 pBuffer1++;
arostm 0:e86d70f1f2ce 162 pBuffer2++;
arostm 0:e86d70f1f2ce 163 }
arostm 0:e86d70f1f2ce 164
arostm 0:e86d70f1f2ce 165 return 0;
arostm 0:e86d70f1f2ce 166 }