54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
#ifndef INCLUDE_PROM_DEVICE_28C_H
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#define INCLUDE_PROM_DEVICE_28C_H
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#include "Arduino.h"
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#include "PromDevice.h"
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/*****************************************************************************/
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/*****************************************************************************/
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/**
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* PromDevice28C class
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*
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* Provides the device-specific interface to read and write data from a
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* 28C series parallel EEPROM using the Arduino.
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*
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* Block writes are supported on compatible devices by specifying a blockSize
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* in the constructor. Use zero for byte writes.
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*/
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// IO lines for the EEPROM device control
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// Pins D2..D9 are used for the data bus.
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#define WE A0
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#define CE A1
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#define OE A2
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class PromDevice28C : public PromDevice
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{
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public:
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PromDevice28C(unsigned long size, word blockSize, unsigned maxWriteTime, bool polling);
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void begin();
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const char * getName() { return "28C series EEPROM"; }
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void disableSoftwareWriteProtect();
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void enableSoftwareWriteProtect();
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//protected:
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void setAddress(word address);
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byte readByte(word address);
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bool burnByte(byte value, word address);
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bool burnBlock(byte data[], word len, word address);
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bool waitForWriteCycleEnd(byte lastValue);
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void setByte(byte value, word address);
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// Set the status of the device control pins
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void enableChip() { digitalWrite(CE, LOW); }
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void disableChip() { digitalWrite(CE, HIGH);}
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void enableOutput() { digitalWrite(OE, LOW); }
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void disableOutput() { digitalWrite(OE, HIGH);}
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void enableWrite() { digitalWrite(WE, LOW);}
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void disableWrite() { digitalWrite(WE, HIGH);}
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};
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#endif // #define INCLUDE_PROM_DEVICE_28C_H
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