www.pudn.com > SMSC USB2.0.zip > eeprom.h
/*============================================================================
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SSSS M M CCCC Standard Microsystems Corporation
S MM MM SSSS C Austin Design Center
SSS M M M S C 11000 N. Mopac Expressway
S M M SSS C Stonelake Bldg. 6, Suite 500
SSSS M M S CCCC Austin, Texas 78759
SSSS ______________________________________________
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Copyright(C) 1999, Standard Microsystems Corporation
All Rights Reserved.
This program code listing is proprietary to SMSC and may not be copied,
distributed, or used without a license to do so. Such license may have
Limited or Restricted Rights. Please refer to the license for further
clarification.
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Notice: The program contained in this listing is a proprietary trade
secret of SMSC, Hauppauge, New York, and is copyrighted
under the United States Copyright Act of 1976 as an unpublished work,
pursuant to Section 104 and Section 408 of Title XVII of the United
States code. Unauthorized copying, adaption, distribution, use, or
display is prohibited by this law.
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Use, duplication, or disclosure by the Government is subject to
restrictions as set forth in subparagraph(c)(1)(ii) of the Rights
in Technical Data and Computer Software clause at DFARS 52.227-7013.
Contractor/Manufacturer is Standard Microsystems Corporation,
80 Arkay Drive, Hauppauge, New York, 1178-8847.
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eeprom.h - eeprom interface
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comments tbd
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Revision History
Date Who Comment
________ ___ _____________________________________________________________
06/26/01 rcc initial version
09/25/01 tbh rearranged
01/24/02 rcc changed the serial eeprom code to work with DI/DO on same pin saves a GPIO
and more importantly makes the code the same as the 201
============================================================================*/
//------------------------------------------------------------------------------
// Change the defines below if you ever need to scramble which gpios you need to use
// This code was designed for the 93LV56 or 66 A eeprom devices.
// Just assign the gpio you want to CL, CD, DI, or DO below
// Also put in k_position_of_data_out_gpio the decimal number of the GPio
// you have assigned to DO. These are all the changes you need to make in order to use
#define CLK kbm_gpio7 // This is eeprom CLK signal
#define CS kbm_gpio2 // This is eeprom CS signal
#define DI kbm_gpio4 // This is eeprom DI signal
#define DO kbm_gpio4 // This is eeprom DO signal
#define k_position_of_data_out_gpio 4 //This is the decimal number of the gpio used in DO above
//------------------------------------------------------------------------------
#define k_pin_high 1
#define k_pin_low 0
//------------------------------------------------------------------------------
#define kbm_set_util_reg_as_gpios 0x00 //set gpio 0,1,2,3,4 as gpios disable gpio0 toggle
#define k_data_rotate_right k_position_of_data_out_gpio //(N) number of times to rotate right is using Gpio N for dat in.
#define kbm_MSB_only_mask 0x80 //look at MSB only
//------------------------------------------------------------------------------
// prototypes
void eeprom_write_enable(void) reentrant;
void eeprom_write_disable(void) reentrant;
void eeprom_write(uint8 addr, uint8 dataout) reentrant;
uint8 eeprom_read(uint8 addr) reentrant;
//---eof------------------------------------------------------------------------