1 files changed, 113 insertions, 0 deletions
diff --git a/firmware/93c46.h b/firmware/93c46.h
new file mode 100644
index 0000000..817eade
--- /dev/null
+++ b/firmware/93c46.h
@@ -0,0 +1,113 @@
+/*
+ * Author: Benedikt Sauter <sauter@ixbat.de>
+ * All rights reserved.
+ *
+ * Short descripton of file:
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions 
+ * are met:
+ *
+ *   * Redistributions of source code must retain the above copyright 
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above 
+ *     copyright notice, this list of conditions and the following 
+ *     disclaimer in the documentation and/or other materials provided 
+ *     with the distribution.
+ *   * Neither the name of the FH Augsburg nor the names of its 
+ *     contributors may be used to endorse or promote products derived 
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef SPI_H
+#define SPI_H
+
+#include <avr/io.h>
+#include <avr/pgmspace.h>
+
+
+#include "io.h"
+
+
+#define CS (B, 0)
+#define SK (B, 1)
+#define DI (B, 2)
+#define DO (B, 3)
+
+
+
+
+
+
+#define DIN0 (B, 4)
+#define DIN1 (B, 5)
+
+#define CMD_READ    0x80   
+#define CMD_EWEN    0x30    
+#define CMD_ERASE   0xc0  
+#define CMD_WRITE   0x40      
+#define CMD_ERAL    0x20     
+#define CMD_WRAL    0x10      
+#define CMD_EWDS    0x00    
+
+
+#define PIN_S	PB0
+#define PIN_C	PB1
+#define PIN_D	PB2
+#define PIN_Q	PB3	
+
+void flash_93c46_parser(char *buf);
+
+int flash_93c46_init(void);
+int flash_93c46_deinit(void);
+
+int flash_93c46_read(unsigned char address, unsigned int length, char * buf);
+int flash_93c46_write(unsigned char address, unsigned int length, char* buf);
+
+void flash_93c46_init_usb(void);
+void flash_93c46_deinit_usb(void);
+
+void flash_93c46_read_usb(unsigned char address, unsigned int length, char* buf);
+void flash_93c46_write_usb(unsigned char address, unsigned int length, char* buf);
+
+
+void start_of_ins(void);
+void send_sb_opcode(uint8_t ins);
+void send_data_byte(uint8_t da);
+uint8_t end_of_erase_write(void);
+void end_of_erase_write_disable(void);
+void erase_write_enable(void);
+void send_address(uint8_t da);
+uint8_t write_word_step(uint8_t add,uint8_t wd);
+uint8_t recv_data_word(void);
+uint8_t erase_word(uint8_t add);
+void erase_write_disable(void);
+
+
+
+uint8_t flash_93c46_read_word(uint8_t add);
+uint8_t flash_93c46_write_word(uint8_t add,uint8_t wd);
+
+
+
+
+
+
+
+
+
+
+
+#endif /* SPI_H */