In order to find out if DSP chip TMS320F2812 can read-write EEPROM chip 93LC56B through SPI interface,this paper analyzes the key interface timing characteristics of 93LC56B,designs a circuit which connects the SPI pins of TMS320F2812 and 93LC56B to I/O pins of FPGA.By capturing interface data of the two chips with ChipScope,this paper confirms the register parameters of TMS320F2812 SPI interface adapted for 93LC56B and gives the read-write subprogram,with findings that the most significant bit of data is inefficacious in single-step reading.
Key words
EEPROM /
DSP /
SPI /
93LC56B /
TMS320F2812
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References
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