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/*********************************************************************************************************
** Function name: FSMC_initial
** Descriptions: ³õʼ»¯
** input parameters: ÎÞ
** output parameters: ÎÞ
** Returned value: ÎÞ
*********************************************************************************************************/
void
FSMC_initial(void)
{
FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
FSMC_NORSRAMTimingInitTypeDef p;
RCC_AHB3PeriphClockCmd(RCC_AHB3Periph_FSMC, ENABLE);
/*
p.FSMC_AddressSetupTime = 5; //µØÖ·½¨Á¢Ê±¼ä
p.FSMC_AddressHoldTime = 0; //µØÖ·±£³Öʱ¼ä
p.FSMC_DataSetupTime = 9; //Êý¾Ý½¨Á¢Ê±¼ä
p.FSMC_BusTurnAroundDuration = 0; //×ÜÏß·µ×ªÊ±¼ä
p.FSMC_CLKDivision = 0; //ʱÖÓ·ÖƵ
p.FSMC_DataLatency = 0; //DATALATÊý¾Ý±£³Öʱ¼ä
*/
/*
p.FSMC_AddressSetupTime = 50;
p.FSMC_AddressHoldTime = 30;
p.FSMC_DataSetupTime = 30;
p.FSMC_BusTurnAroundDuration = 30;
p.FSMC_CLKDivision = 16;
p.FSMC_DataLatency = 30;
*/
//*
//CSƬѡʵ²â208nS£¬ÀíÂÛ¼ÆËã5+30/168=0.20833;
p.FSMC_AddressSetupTime = 5;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 50;
p.FSMC_BusTurnAroundDuration = 0;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
//*/
p.FSMC_AccessMode = FSMC_AccessMode_A; //·ÃÎÊģʽ
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM1; //Êý¾Ý¿é
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable; //ÊÇ·ñÑ¡ÔñµØÖ·Êý¾Ý¸´ÓÃ
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_SRAM; //´æ´¢ÀàÐÍ
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b; //Êý¾Ý×ÜÏß¿í¶È
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable; //¹Ø±Õ´æ´¢Æ÷µÄÍ»·¢·ÃÎÊģʽ
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;//ÉèÖÃWAITÐźŵÄÓÐЧµçƽ
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;//¹Ø±Õ»·»Øģʽ
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState; //É趨WAITÐźÅÓÐЧʱ»ú
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable; //дʹÄÜ
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;//¹Ø±ÕWAITÐźÅ
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable; //¹Ø±ÕÀ©Õ¹Ä£Ê½
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable; //¹Ø±Õ²¢·¢Ð´Ä£Ê½
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p; //É趨¶ÁдʱÐò
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);
FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM1, ENABLE);
}
void FSMC_IO_Config(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE3 <-> FSMC_A19 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE4 <-> FSMC_A20 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE7 <-> FSMC_D4 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE8 <-> FSMC_D5 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE9 <-> FSMC_D6 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE10 <-> FSMC_D7 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE11 <-> FSMC_D8 | PF14 <-> FSMC_A8 |
| PD13 <-> FSMC_A18 | PE12 <-> FSMC_D9 | PF15 <-> FSMC_A9 |
| PD14 <-> FSMC_D0 | PE13 <-> FSMC_D10 |------------------+
| PD15 <-> FSMC_D1 | PE14 <-> FSMC_D11 |
| PD7 <-> FSMC_CS | PE15 <-> FSMC_D12 |
+-------------------+--------------------+
*/
GPIO_InitTypeDef GPIO_InitStructure;
//PD¿Ú£ºÊý¾ÝºÍ¶ÁдÐźÅÉèÖÃ
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD | RCC_AHB1Periph_GPIOE | RCC_AHB1Periph_GPIOF, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_4 | GPIO_Pin_5 |
GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_14 | GPIO_Pin_15;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource0, GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource1, GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource4, GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource5, GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource8, GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource9, GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource10, GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource14, GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource15, GPIO_AF_FSMC);
//PE¿Ú£ºÊý¾ÝÉèÖÃ
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 |
GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;
GPIO_Init(GPIOE, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource7 , GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource8 , GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource9 , GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource10 , GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource11 , GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource12 , GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource13 , GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource14 , GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource15 , GPIO_AF_FSMC);
//PF¿Ú£ºµØÖ·ÉèÖÃ
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4 ;//(A0 A1 A2 A3 A4)
GPIO_Init(GPIOF, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOF, GPIO_PinSource0,GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOF, GPIO_PinSource1,GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOF, GPIO_PinSource2,GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOF, GPIO_PinSource3,GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOF, GPIO_PinSource4,GPIO_AF_FSMC);
//PD¿Ú£ºÆ¬Ñ¡ÉèÖÃ
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;//(CS)
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource7, GPIO_AF_FSMC);
} |
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