How to use FSMC to connect LCD with 100-pin stm32f103v

Regarding the use of FSMC to connect stm32 and LCD, most of the information on the Internet is about the STM32F103Z series, which has 144 pins and FSMC_A is relatively complete. But for the stm32f103v series with only 100 pins, some address lines do not exist, so how can we use the 8080 interface to connect LCD using the FSMC bus? To put it simply, how should the RS, CS, RD, and WR lines be connected?

Integrating network data, it is summarized as follows

After checking the data sheet

 

 

RS can be selected as any one of PD11 PD12 PD13.

The picture above is the ze color screen interface of Beite Technology.

 

WR selects PD5, RD selects PD4, cs selects PD7.

About its use

//Write 16-bit data function
#define Bank1_LCD_D ((uint32_t)0x60020000) //disp Data ADDR
void LCD_WR_Data(unsigned int val)
{   
    *(__IO uint16_t *) (Bank1_LCD_D)= val;     
}
Write the data to the memory at 0x60020000. The data will be sent to the LCD controller by STM32 through the FSMC hardware without intervention. It can be understood that the data entry of the LCD controller is mapped to the memory at 0x60020000. The command will be ((uint32_t)0x60000000). It is
easy to use. How to configure it? Originally, I thought it was troublesome and gave up..................
Okay, here is a method to fix FSMC as the complete configuration of 8080 communication.
/*-- FSMC Configuration ---------------------------------------------------------*/
void FSMC_LCD_Init(void)
{
  FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
  FSMC_NORSRAMTimingInitTypeDef p;

  /* FSMC_Bank1_NORSRAM1 timing configuration */
  p.FSMC_AddressSetupTime = 0x01;/*Address setup time limit*/                                            
  p.FSMC_AddressHoldTime = 0x00;/*Address hold time*/
  p.FSMC_DataSetupTime = 0x05;/*Set data time limit*/
  p.FSMC_BusTurnAroundDuration = 0x00;/*Bus turnaround time*/
  p.FSMC_CLKDivision = 0x00;/*The number of HCLK cycles of the CLK clock output signal represents the time???*/
  p.FSMC_DataLatency = 0x00;/*Specify the clock cycle before getting the first data*/
  p.FSMC_AccessMode = FSMC_AccessMode_B;

  FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM1;/*Specified FSMC bank*/
  FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable; /*Data bus with non-multiplexed address and data values*/                                         
  FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_NOR;/*Type of external memory*/
  FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;/*Data width*/
  FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;/* Disable burst access mode*/
  FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;/*Specify the polarity of the wait signal*/
  FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;/*Enables or disables the Wrapped burst access mode for Flash*/
  FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
  FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;/*Enable the write operation of the specified FSMC block*/
  FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
  FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;/*Extended mode*/
  FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;/*Disable write burst operation*/
  FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
  FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;     

 
  FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);

  /* Enable FSMC Bank1_SRAM Bank */
  FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM1, ENABLE);  
}
Why should it be written like this? ? Can it be written in another way? ? ?
FSMC has several blocks and the memory mapped by each block is different. Of course, it is not the only way to write it like this. If you want to understand the meaning of each function parameter in detail, you have to look up the data sheet yourself. It is not enough to write it here. Just understand that the timing configuration in front is about the trial time limit, and the one behind is about the timing. Changing the parameters in the timing configuration can make the timing complete faster and the communication speed faster.

FSMC配置还后 液晶屏怎么连到单片机上？
/* GPIO Configuration */
void GPIO_Configuration(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;
  
  /* Enable the FSMC AND GPIO Clock */
  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC |
                         RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE , ENABLE); 
                             
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;      //LED1
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOE, &GPIO_InitStructure);                     
  
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;         //LCD 背光控制
  GPIO_Init(GPIOE, &GPIO_InitStructure);
  
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 ;      //LCD-RST
  GPIO_Init(GPIOE, &GPIO_InitStructure);      
  
   /* Set PD.00(D2), PD.01(D3), PD.04(NOE/RD), PD.05(NWE/WR), PD.08(D13), PD.09(D14),
     PD.10(D15), PD.14(D0), PD.15(D1) as alternate function push pull */      
  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_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_Init(GPIOD, &GPIO_InitStructure);

  /* Set PE.07(D4), PE.08(D5), PE.09(D6), PE.10(D7), PE.11(D8), PE.12(D9), PE.13(D10),
     PE.14(D11), PE.15(D12) as alternate function push pull */
  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); 
  
  /* CS 为FSMC_NE1(PD7) */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; 
  GPIO_Init(GPIOD, &GPIO_InitStructure);
  
  /* RS 为FSMC_A16(PD11)*/
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 ; 
  GPIO_Init(GPIOD, &GPIO_InitStructure); 
    
  GPIO_SetBits(GPIOD, GPIO_Pin_7);            //CS=1 
  GPIO_SetBits(GPIOD, GPIO_Pin_11);           //RS=1
  GPIO_SetBits(GPIOD, GPIO_Pin_14| GPIO_Pin_15 |GPIO_Pin_0 | GPIO_Pin_1);       
  GPIO_SetBits(GPIOE, GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10);   
  GPIO_SetBits(GPIOE, GPIO_Pin_0);            //LIGHT关
  GPIO_SetBits(GPIOE, GPIO_Pin_1);            //RESET=1
  GPIO_SetBits(GPIOD, GPIO_Pin_4);            //RD=1
  GPIO_SetBits(GPIOD, GPIO_Pin_5);            //WR=1
          
}

FSMC is hardware WR RD RS CS. These are all designated pins.
RD PD.04
WR PD.05
CS PD.07
RS PD.11.
The data port uses PE and PD 
. This connection is only suitable for the previous FSMC configuration. Other configuration pins will change. You can check the manual. They are all in Chinese.
In this way, the reading and writing of commands and data can be completed at the following addresses.
 #define Bank1_LCD_D ((uint32_t)0x60020000) //disp Data ADDR
#define Bank1_LCD_C ((uint32_t)0x60000000) //disp Reg ADDR

//Write register address function
void LCD_WR_REG(unsigned int index)
{
    *(__IO uint16_t *) (Bank1_LCD_C)= index;
}

//Write register data function
void LCD_WR_CMD(unsigned int index,unsigned int val)
{    
    *(__IO uint16_t *) (Bank1_LCD_C)= index;    
    *(__IO uint16_t *) (Bank1_LCD_D)= val;
}

//Write 16-bit data function
void LCD_WR_Data(unsigned int val)
{   
    *(__IO uint16_t *) (Bank1_LCD_D)= val;     
}