Thrillseeker
SDRAM demo, Think this is needed to store the audio and vibration before it gets wriitten to the SD.
Dependencies: BSP_DISCO_F769NI
Revision 0:b1919ed2e9f3, committed 2020-07-10
- Comitter:
- matthewlezcano
- Date:
- Fri Jul 10 20:30:30 2020 +0000
- Commit message:
- none;
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/.hgignore Fri Jul 10 20:30:30 2020 +0000 @@ -0,0 +1,2 @@ +BUILD +mbed-os/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BSP_DISCO_F769NI.lib Fri Jul 10 20:30:30 2020 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/teams/ST/code/BSP_DISCO_F769NI/#d13d7c447539
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Jul 10 20:30:30 2020 +0000
@@ -0,0 +1,109 @@
+#include "mbed.h"
+#include "stm32f769i_discovery_lcd.h"
+#include "stm32f769i_discovery_sdram.h"
+
+static void Fill_Buffer(uint32_t *pBuffer, uint32_t uwBufferLenght, uint32_t uwOffset);
+static uint8_t Buffercmp(uint32_t *pBuffer1, uint32_t *pBuffer2, uint16_t BufferLength);
+
+#define BUFFER_SIZE ((uint32_t)0x0100)
+#define WRITE_READ_ADDR ((uint32_t)0x0800)
+#define SDRAM_WRITE_READ_ADDR ((uint32_t)0xC0177000)
+
+uint32_t sdram_aTxBuffer[BUFFER_SIZE];
+uint32_t sdram_aRxBuffer[BUFFER_SIZE];
+
+int main()
+{
+ printf("\n\n SDRAM EXAMPLE FOR DISCO-F769NI START:\n");
+
+ /* Init LCD and display example information */
+ BSP_LCD_Init();
+ BSP_LCD_LayerDefaultInit(0, LCD_FB_START_ADDRESS);
+ BSP_LCD_Clear(LCD_COLOR_WHITE);
+ BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
+ BSP_LCD_FillRect(0, 0, BSP_LCD_GetXSize(), 40);
+ BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
+ BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
+ BSP_LCD_SetFont(&Font24);
+ BSP_LCD_DisplayStringAt(0, 0, (uint8_t *)"SDRAM basic example", CENTER_MODE);
+
+ HAL_Delay(2000);
+
+ /* SDRAM device configuration */
+ if (BSP_SDRAM_Init() != SDRAM_OK) {
+ BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"SDRAM Initialization : FAILED", LEFT_MODE);
+ } else {
+ BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"SDRAM Initialization : OK", LEFT_MODE);
+ }
+ /* Fill the buffer to write */
+ Fill_Buffer(sdram_aTxBuffer, BUFFER_SIZE, 0xA244250F);
+
+ HAL_Delay(2000);
+
+ /* Write data to the SDRAM memory */
+ if (BSP_SDRAM_WriteData(SDRAM_WRITE_READ_ADDR + WRITE_READ_ADDR, sdram_aTxBuffer, BUFFER_SIZE) != SDRAM_OK) {
+ BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"SDRAM WRITE : FAILED", LEFT_MODE);
+ } else {
+ BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"SDRAM WRITE : OK", LEFT_MODE);
+ }
+
+ HAL_Delay(2000);
+
+ /* Read back data from the SDRAM memory */
+ if (BSP_SDRAM_ReadData(SDRAM_WRITE_READ_ADDR + WRITE_READ_ADDR, sdram_aRxBuffer, BUFFER_SIZE) != SDRAM_OK) {
+ BSP_LCD_DisplayStringAt(20, 160, (uint8_t *)"SDRAM READ : FAILED", LEFT_MODE);
+ } else {
+ BSP_LCD_DisplayStringAt(20, 160, (uint8_t *)"SDRAM READ : OK", LEFT_MODE);
+ }
+
+ HAL_Delay(2000);
+
+ if (Buffercmp(sdram_aTxBuffer, sdram_aRxBuffer, BUFFER_SIZE) > 0) {
+ BSP_LCD_DisplayStringAt(20, 190, (uint8_t *)"SDRAM COMPARE : FAILED", LEFT_MODE);
+ } else {
+ BSP_LCD_DisplayStringAt(20, 190, (uint8_t *)"SDRAM Test : OK", LEFT_MODE);
+ }
+
+ while (1) {
+
+ }
+}
+
+
+/**
+ * @brief Fills buffer with user predefined data.
+ * @param pBuffer: pointer on the buffer to fill
+ * @param uwBufferLenght: size of the buffer to fill
+ * @param uwOffset: first value to fill on the buffer
+ * @retval None
+ */
+static void Fill_Buffer(uint32_t *pBuffer, uint32_t uwBufferLenght, uint32_t uwOffset)
+{
+ uint32_t tmpIndex = 0;
+
+ /* Put in global buffer different values */
+ for (tmpIndex = 0; tmpIndex < uwBufferLenght; tmpIndex++) {
+ pBuffer[tmpIndex] = tmpIndex + uwOffset;
+ }
+}
+
+/**
+ * @brief Compares two buffers.
+ * @param pBuffer1, pBuffer2: buffers to be compared.
+ * @param BufferLength: buffer's length
+ * @retval 1: pBuffer identical to pBuffer1
+ * 0: pBuffer differs from pBuffer1
+ */
+static uint8_t Buffercmp(uint32_t *pBuffer1, uint32_t *pBuffer2, uint16_t BufferLength)
+{
+ while (BufferLength--) {
+ if (*pBuffer1 != *pBuffer2) {
+ return 1;
+ }
+
+ pBuffer1++;
+ pBuffer2++;
+ }
+
+ return 0;
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os.lib Fri Jul 10 20:30:30 2020 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/mbed-os/#699372421a3b388fe568e9be85b1a985749a438f