OpenRcBootloader/aspi.cpp at master · MikeBland/OpenRcBootloader · GitHub

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/**
  ******************************************************************************
  * @file    Project/spi/spi.c
  * @author  X9D Application Team
  * @Hardware version V0.2
  * @date    11-July-2012
  * @brief   This file provides spi Init(Analog spi),read and write.
             driver for LCD.
  * *
  ******************************************************************************
*/

#include "radio.h"
#include "stm32f2xx.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_rcc.h"
#include "hal.h"
#include "aspi.h"

#define __no_operation     __NOP

/**
**********send command to lcd**************
*/
//hardware spi
/*u16 spiCmd(u8 addr)
{
	u8 readValue;

	SPI_RS_LOW();
    SPI_NCS_LOW();

	SPI_WRITE_BYTE(addr);
	SPI_WAIT_DONE();

	readValue=SPI_READ_BYTE();
	SPI_NCS_HIGH();
    return	readValue;
}*/

//Anolog spi
void AspiCmd(uint8_t Command_Byte)
{
    int i=8;
    LCD_A0_LOW();

    LCD_CLK_HIGH();
    LCD_NCS_LOW();

    while (i--)
    {
	    LCD_CLK_LOW();
	    if(Command_Byte&0x80)
	{
        LCD_MOSI_HIGH();
    }
	else LCD_MOSI_LOW();

	Command_Byte=Command_Byte<<1;
	LCD_CLK_HIGH();
    }
    LCD_NCS_HIGH();
    LCD_A0_HIGH();
}

/**

********send data to lcd**************

*/

//hardware spi
/*
u16 spiData(u8 addr)
{
	u16 readValue;
      	OLED_RS_HIGH();
	SPI_NCS_LOW();

	SPI_WRITE_BYTE(addr);
	SPI_WAIT_DONE();

	readValue=SPI_READ_BYTE();
	SPI_NCS_HIGH();
      	return	readValue;
}
*/

//Anolog spi
void AspiData(uint8_t Para_data)
{
    int i=8;
    LCD_CLK_HIGH();
    LCD_A0_HIGH();
    LCD_NCS_LOW();
    while (i--)
    {
        if(Para_data&0x80)
        {
            LCD_MOSI_HIGH();
        }else LCD_MOSI_LOW();
        Para_data<<=1;
        LCD_CLK_LOW();
        __no_operation();
        LCD_CLK_HIGH();
        __no_operation();
    }
    LCD_NCS_HIGH();
    LCD_A0_HIGH();
}

/***
**********read one byte in a register*******
*/

/*
u16 spiRegAccess(u8 addrByte, u8 writeValue)
{
	u8 readValue;

	SPI_NCS_LOW();

	SPI_WRITE_BYTE(addrByte);
	SPI_WAIT_DONE();

	SPI_WRITE_BYTE(writeValue);
	SPI_WAIT_DONE();

	readValue=SPI_READ_BYTE();
	SPI_NCS_HIGH();
	return	readValue;
}

*/