Description: 5. SPI program design and circuit simulation SPI is a full duplex synchronous serial interface, an SPI bus can connect multiple hosts and multiple slaves, but at the same time allowing only one host operating bus. During data transfer, the master to the slave always sends a byte of data, but also the slave always sends a byte to the host data (host via MISO receives data). Definition 74HC595 chip select port via PINSEL0, PINSEL1 register setting SPI pin interface, driven by setting IO0DIR 74HC595 interface to initialize the SPI interface to send display data, chip select register is cleared, waiting for SPIF bit waiting for data transmission is completed. Use a while loop to send data display data, using delay routine makes the display more stable and easy to use.
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File list (Check if you may need any files):
SPI\CONFIG.H
...\HEAP.S
...\IRQ.S
...\Last Loaded SPI.DBK
...\LPC2138.H
...\main.c
...\main.crf
...\main.d
...\main.i
...\main.o
...\main.txt
...\SPI.axf
...\SPI.DSN
...\SPI.hex
...\SPI.htm
...\SPI.lnp
...\SPI.map
...\SPI.Opt
...\SPI.plg
...\SPI.PWI
...\SPI.sct
...\SPI.tra
...\SPI.Uv2
...\SPI_Opt.Bak
...\SPI_Target 1.dep
...\SPI_Uv2.Bak
...\STACK.S
...\Startup.lst
...\Startup.o
...\Startup.s
...\TARGET.C
...\TARGET.H
SPI
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