WhyCan Forum(哇酷开发者社区)

//***************************************************************           
		整个调用的流程:
		1) 实现r_dat_bat()等函数, spi的读写操作函数;

ASCII_GetData(*text, ASCII_8X16, FontBuf);

#include "font_library.h"
#include <stdio.h>
#include "at32f413_gpio.h"

void FL_Init(void)
{
	
	
	gpio_init_type boo;
	crm_periph_clock_enable(CRM_GPIOA_PERIPH_CLOCK, TRUE);
	crm_periph_clock_enable(CRM_GPIOB_PERIPH_CLOCK, TRUE);
	boo.gpio_drive_strength=GPIO_DRIVE_STRENGTH_STRONGER;
	boo.gpio_mode=GPIO_MODE_OUTPUT;
	boo.gpio_out_type=GPIO_OUTPUT_PUSH_PULL;
	boo.gpio_pins=GPIO_PINS_5|GPIO_PINS_7|GPIO_PINS_4;
	boo.gpio_pull=GPIO_PULL_UP;
	
	gpio_init(GPIOA,&boo);
	boo.gpio_pins=GPIO_PINS_0|GPIO_PINS_14;
	gpio_init(GPIOB,&boo);
	boo.gpio_mode=GPIO_MODE_INPUT;
	boo.gpio_pins=GPIO_PINS_6;
	gpio_init(GPIOA,&boo);
	
	FL_SCK_H();
	FL_NSS_H();
	FL_MOSI_H();

}

void FL_Deinit(void)
{
#ifdef FL_SPI_SOFT
	FL_MOSI_L();
	FL_SCK_L();
	FL_NSS_H();
#else
	HAL_SPI_DeInit(&hspi4);
	FL_NSS_H();
#endif
}

uint8_t FL_SPI_RW(uint8_t  data)
{
	#ifdef FL_SPI_SOFT
	uint8_t bit_ctr;
	for(bit_ctr=0;bit_ctr<8;bit_ctr++)  // 输出8位
	{		
		if(data&0x80){FL_MOSI_H();}
		else {FL_MOSI_L();}		
		data=(data<<1);		
		FL_SCK_L();
		data|=FL_MISO_IN();	 
		FL_SCK_H();
	}
	return data;
#else
	uint8_t Rxdata;
	HAL_SPI_TransmitReceive(&hspi4,&data,&Rxdata,1, 1000);       
	return Rxdata;          		    //返回收到的数据
#endif
}

void Send_Byte(unsigned char out)
{	
	unsigned char i=0;

	for(i=0;i<8;i++)
	{
	  FL_SCK_L();  //字库芯片时钟置低
	  if(((out<<i)&0x80)==0)
		  FL_MOSI_L();   
	  else
		  FL_MOSI_H();
	  FL_SCK_H();
  }
}
unsigned char Get_Byte(void)         
{
	unsigned char i;
	unsigned char read_dat;

	FL_SCK_H();
	for(i=0;i<8;i++)
	{
		FL_SCK_L();
		read_dat=read_dat<<1;
		if(FL_MISO_IN())				
			read_dat|=0x01;
		else
			read_dat&=0xfe;
		FL_SCK_H();
	}
	return(read_dat);
}

unsigned char r_dat_bat(unsigned long address,unsigned long byte_long,unsigned char *p_arr)
{
	unsigned long i;
	unsigned char addrHigh;
	unsigned char addrMid;
	unsigned char addrLow;
	
	addrHigh=address>>16;
	addrMid=address>>8;
	addrLow=(unsigned char)address;

	FL_NSS_L();           //片选选中字库芯片
	Send_Byte(0x03);	//普通读取首先送0X03,然后发送地址高八位addrHigh，中八位addrMid，低八位addrLow。	
	Send_Byte(addrHigh);
	Send_Byte(addrMid);
	Send_Byte(addrLow);
	for(i=0;i<byte_long;i++)
	*(p_arr+i)=Get_Byte();
	FL_NSS_H();	
	
//	FL_NSS_L();           //片选选中字库芯片
//	FL_SPI_RW(0x03);	//普通读取首先送0X03,然后发送地址高八位addrHigh，中八位addrMid，低八位addrLow。	
//	FL_SPI_RW(addrHigh);
//	FL_SPI_RW(addrMid);
//	FL_SPI_RW(addrLow);
//	for(i=0;i<byte_long;i++)
//	*(p_arr+i)=FL_SPI_RW(0xFF);
//	FL_NSS_H();	
	return 0;
}

static uint8_t  FontBuf[128]={0};
uint8_t *text="A";
int main(void)
{
  system_clock_config();

  at32_board_init();

//  button_exint_init();

	FL_Init();
  while(1)
  {
    at32_led_toggle(LED2);
    delay_ms(g_speed * DELAY);
	  
	  ASCII_GetData(*text, ASCII_8X16, FontBuf);
//    at32_led_toggle(LED3);
//    delay_ms(g_speed * DELAY);
//    at32_led_toggle(LED4);
//    delay_ms(g_speed * DELAY);
  }
}