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AN4570 датащи(PDF) 25 Page - STMicroelectronics

номер детали AN4570
подробное описание детали  This application note describes how to use the high-density
PDF  46 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4570 датащи(HTML) 25 Page - STMicroelectronics

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AN4570
Interfacing with a non-multiplexed, asynchronous 16-bit SRAM
45
Figure 8. 16-bit SRAM: IS61WV51216BLL connection to STM32F30xxD/E
A firmware example is available hereafter.
The main goal of this example is to provide the basics of how to use the FMC firmware
library and the associate SRAM driver to perform read/write operations on the
IS61WV51216BLL SRAM memory.
/* Includes ---------------------------------------------------------------
---*/
#include "stm32f3xx_hal.h"
/* Private define ---------------------------------------------------------
---*/
#define SRAM_DEVICE_ADDR
((uint32_t)0x68000000)
#define SRAM_DEVICE_SIZE
((uint32_t)0x200000)
/* SRAM device size in
MBytes */
/* #define SRAM_MEMORY_WIDTH
FMC_NORSRAM_MEM_BUS_WIDTH_8
*/
#define SRAM_MEMORY_WIDTH
FMC_NORSRAM_MEM_BUS_WIDTH_16
#define SRAM_BURSTACCESS
FMC_BURST_ACCESS_MODE_DISABLE
/* #define SRAM_BURSTACCESS
FMC_BURST_ACCESS_MODE_ENABLE*/
#define SRAM_WRITEBURST
FMC_WRITE_BURST_DISABLE
/* #define SRAM_WRITEBURST
FMC_WRITE_BURST_ENABLE */
/* DMA definitions for SRAM DMA transfer */
#define __SRAM_DMAx_CLK_ENABLE
__DMA2_CLK_ENABLE
#define SRAM_DMAx_STREAM
DMA2_Channel1



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