130 lines
2.1 KiB
C++
130 lines
2.1 KiB
C++
/**
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******************************************************************************
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* @file Project/spi/spi.c
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* @author X9D Application Team
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* @Hardware version V0.2
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* @date 11-July-2012
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* @brief This file provides spi Init(Analog spi),read and write.
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driver for LCD.
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* *
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******************************************************************************
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*/
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#include "../open9x.h"
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/**
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**********send command to lcd**************
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*/
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//hardware spi
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/*u16 spiCmd(u8 addr)
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{
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u8 readValue;
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SPI_RS_LOW();
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SPI_NCS_LOW();
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SPI_WRITE_BYTE(addr);
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SPI_WAIT_DONE();
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readValue=SPI_READ_BYTE();
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SPI_NCS_HIGH();
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return readValue;
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}*/
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//Anolog spi
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void AspiCmd(u8 Command_Byte)
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{
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int i=8;
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LCD_A0_LOW();
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LCD_CLK_HIGH();
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LCD_NCS_LOW();
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while (i--)
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{
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LCD_CLK_LOW();
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if(Command_Byte&0x80)
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{
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LCD_MOSI_HIGH();
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}
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else LCD_MOSI_LOW();
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Command_Byte=Command_Byte<<1;
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LCD_CLK_HIGH();
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}
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LCD_NCS_HIGH();
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LCD_A0_HIGH();
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}
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/**
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********send data to lcd**************
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*/
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//hardware spi
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/*
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u16 spiData(u8 addr)
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{
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u16 readValue;
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OLED_RS_HIGH();
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SPI_NCS_LOW();
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SPI_WRITE_BYTE(addr);
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SPI_WAIT_DONE();
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readValue=SPI_READ_BYTE();
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SPI_NCS_HIGH();
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return readValue;
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}
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*/
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//Anolog spi
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void AspiData(u8 Para_data)
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{
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int i=8;
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LCD_CLK_HIGH();
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LCD_A0_HIGH();
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LCD_NCS_LOW();
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while (i--)
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{
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if(Para_data&0x80)
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{
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LCD_MOSI_HIGH();
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}else LCD_MOSI_LOW();
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Para_data<<=1;
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LCD_CLK_LOW();
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__no_operation();
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LCD_CLK_HIGH();
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__no_operation();
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}
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LCD_NCS_HIGH();
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LCD_A0_HIGH();
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}
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/***
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**********read one byte in a register*******
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*/
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/*
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u16 spiRegAccess(u8 addrByte, u8 writeValue)
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{
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u8 readValue;
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SPI_NCS_LOW();
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SPI_WRITE_BYTE(addrByte);
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SPI_WAIT_DONE();
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SPI_WRITE_BYTE(writeValue);
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SPI_WAIT_DONE();
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readValue=SPI_READ_BYTE();
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SPI_NCS_HIGH();
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return readValue;
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}
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*/
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