求教STM32+FSMC+CH376问题

daifishing

接口连接：#CS-------FSMC_NE1
              #INT-------FSMC_NWAIT
                 A0--------FSMC_A15
              #RD--------FSMC_NOE
              #WR-------FSMC_NWE
接口配置：

[mw_shl_code=c,true]GPIO_InitTypeDef GPIO_InitStructure; RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE | RCC_APB2Periph_GPIOF | RCC_APB2Periph_GPIOG | RCC_APB2Periph_AFIO, ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOD, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_14 |GPIO_Pin_15; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_Init(GPIOD, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 |GPIO_Pin_10; GPIO_Init(GPIOE, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5; GPIO_Init(GPIOG, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 |GPIO_Pin_5; GPIO_Init(GPIOD, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; GPIO_Init(GPIOD, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; GPIO_Init(GPIOD, &GPIO_InitStructure); [/mw_shl_code]

FSMC配置：

FSMC_NORSRAMInitTypeDef  init;
        FSMC_NORSRAMTimingInitTypeDef  timing;

        /*-- FSMC Configuration ------------------------------------------------------*/
        /*----------------------- SRAM Bank 1 ----------------------------------------*/
        /* FSMC_Bank1_NORSRAM1 configuration */
        timing.FSMC_AddressSetupTime = 0;
        timing.FSMC_AddressHoldTime = 0;
        timing.FSMC_DataSetupTime = 2;
        timing.FSMC_BusTurnAroundDuration = 0;
        timing.FSMC_CLKDivision = 0;
        timing.FSMC_DataLatency = 0;
        timing.FSMC_AccessMode = FSMC_AccessMode_A;

       
        init.FSMC_Bank = FSMC_Bank1_NORSRAM1;
        init.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
        init.FSMC_MemoryType = FSMC_MemoryType_SRAM;
        init.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_8b;
        init.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
        init.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;        /* ×????????????????± */
        init.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
        init.FSMC_WrapMode = FSMC_WrapMode_Disable;
        init.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
        init.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
        init.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
        init.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
        init.FSMC_WriteBurst = FSMC_WriteBurst_Disable;

        init.FSMC_ReadWriteTimingStruct = &timing;
        init.FSMC_WriteTimingStruct = &timing;

        FSMC_NORSRAMInit(&init);

        /* - BANK 1 (of NOR/SRAM Bank 1~4) is enabled */
        FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM1, ENABLE);

地址配置：#define CH376_DAT_PORT        (*( vu32 *)0x60000000) // A15 = 0, CS = 0
        #define CH376_CMD_PORT        (*( vu32 *)0x60008000) // A15 = 1, CS = 0
配置完后测试通信
/* 测试单片机与CH376之间的通讯接口 */
// 发送测试命令
xWriteCH376Cmd(CMD11_CHECK_EXIST);
// 发送测试数据
xWriteCH376Data(0x65);
// 读数据
u8Result = xReadCH376Data();

u8Result 始终返回0x5f   求教有没有人遇到同样问题，怎么解决的啊

CH376并口时序参数：

从上往下1：WR
            2：RD
            3：A0
            4：NE1
            5：D1（其中一位数据）

输出一个数据时 写信号使能出现了4次，这个时序怎么配置，哪位懂这个

八度空间

回复【楼主位】daifishing:
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看着你的FSMC的数据线是用8bit还是16bit？？？

daifishing

FSMC的数据线是用8bit D0-D7--------FSMC_D0-FSMC_D7