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The EEPROM stream read/write functions now use eeprom_update_byte() instead of eeprom_write_byte(), so that only changed bytes are written to EEPROM to preserve its lifespan. 

Changed over the AVRISP-MKII and TemperatureDataLogger projects to use eeprom_update_byte() when writing non-volatile parameters to EEPROM to preserve its lifespan.
This commit is contained in:
Dean Camera 2010-05-26 11:54:55 +00:00
parent bb9fb1051c
commit 670413603f
6 changed files with 23 additions and 10 deletions
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8
LUFA/Drivers/USB/LowLevel/Endpoint.c
View File

@ -266,7 +266,7 @@ uint8_t Endpoint_Discard_Stream(uint16_t Length
#define TEMPLATE_BUFFER_TYPE void*
#define TEMPLATE_CLEAR_ENDPOINT() Endpoint_ClearOUT()
#define TEMPLATE_BUFFER_OFFSET(Length) 0
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_write_byte((uint8_t*)BufferPtr++, Endpoint_Read_Byte())
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_update_byte((uint8_t*)BufferPtr++, Endpoint_Read_Byte())
#include "Template/Template_Endpoint_RW.c"
#define TEMPLATE_FUNC_NAME Endpoint_Read_Stream_BE
@ -280,7 +280,7 @@ uint8_t Endpoint_Discard_Stream(uint16_t Length
#define TEMPLATE_BUFFER_TYPE void*
#define TEMPLATE_CLEAR_ENDPOINT() Endpoint_ClearOUT()
#define TEMPLATE_BUFFER_OFFSET(Length) (Length - 1)
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_write_byte((uint8_t*)BufferPtr--, Endpoint_Read_Byte())
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_update_byte((uint8_t*)BufferPtr--, Endpoint_Read_Byte())
#include "Template/Template_Endpoint_RW.c"
#endif
@ -322,7 +322,7 @@ uint8_t Endpoint_Discard_Stream(uint16_t Length
#define TEMPLATE_FUNC_NAME Endpoint_Read_Control_EStream_LE
#define TEMPLATE_BUFFER_OFFSET(Length) 0
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_write_byte((uint8_t*)BufferPtr++, Endpoint_Read_Byte())
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_update_byte((uint8_t*)BufferPtr++, Endpoint_Read_Byte())
#include "Template/Template_Endpoint_Control_R.c"
#define TEMPLATE_FUNC_NAME Endpoint_Read_Control_Stream_BE
@ -332,7 +332,7 @@ uint8_t Endpoint_Discard_Stream(uint16_t Length
#define TEMPLATE_FUNC_NAME Endpoint_Read_Control_EStream_BE
#define TEMPLATE_BUFFER_OFFSET(Length) (Length - 1)
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_write_byte((uint8_t*)BufferPtr--, Endpoint_Read_Byte())
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_update_byte((uint8_t*)BufferPtr--, Endpoint_Read_Byte())
#include "Template/Template_Endpoint_Control_R.c"
#endif

4
LUFA/Drivers/USB/LowLevel/Pipe.c
View File

@ -270,7 +270,7 @@ uint8_t Pipe_Discard_Stream(uint16_t Length
#define TEMPLATE_TOKEN PIPE_TOKEN_IN
#define TEMPLATE_CLEAR_PIPE() Pipe_ClearIN()
#define TEMPLATE_BUFFER_OFFSET(Length) 0
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_write_byte((uint8_t*)BufferPtr++, Pipe_Read_Byte())
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_update_byte((uint8_t*)BufferPtr++, Pipe_Read_Byte())
#include "Template/Template_Pipe_RW.c"
#define TEMPLATE_FUNC_NAME Pipe_Read_Stream_BE
@ -286,7 +286,7 @@ uint8_t Pipe_Discard_Stream(uint16_t Length
#define TEMPLATE_TOKEN PIPE_TOKEN_IN
#define TEMPLATE_CLEAR_PIPE() Pipe_ClearIN()
#define TEMPLATE_BUFFER_OFFSET(Length) (Length - 1)
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_write_byte((uint8_t*)BufferPtr--, Pipe_Read_Byte())
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_update_byte((uint8_t*)BufferPtr--, Pipe_Read_Byte())
#include "Template/Template_Pipe_RW.c"
#endif

4
LUFA/ManPages/ChangeLog.txt
View File

@ -13,6 +13,10 @@
* <b>Changed:</b>
* - The RingBuff library code has been replaced in the XPLAINBridge project with an ultra lightweight buffer to help
* improve the reliability of the bridge
* - The EEPROM stream read/write functions now use eeprom_update_byte() instead of eeprom_write_byte(), so that only
* changed bytes are written to EEPROM to preserve its lifespan
* - Changed over the AVRISP-MKII and TemperatureDataLogger projects to use eeprom_update_byte() when writing non-volatile
* parameters to EEPROM to preserve its lifespan
*
* <b>Fixed:</b>
* - Fixed AVRISP project sending a LOAD EXTENDED ADDRESS command to 128KB AVRs after programming or reading from

1
LUFA/ManPages/FutureChanges.txt
View File

@ -18,6 +18,7 @@
* -# Add standardized descriptor names to class driver structures
* -# Correct mishandling of error cases in Mass Storage demos
* -# Fix AVRISP-MKII clone project's XMEGA EEPROM section erase command
* -# Fix occasional dropped characters in the XPLAINBridge project
* - Documentation/Support
* -# Remake AVRStudio project files
* -# Add detailed overviews of how each demo works

14
Projects/AVRISP-MKII/Lib/V2ProtocolParams.c
View File

@ -98,7 +98,7 @@ void V2Params_UpdateParamValues(void)
{
#if (defined(ADC) && !defined(NO_VTARGET_DETECT))
/* Update VTARGET parameter with the latest ADC conversion of VTARGET on supported AVR models */
V2Params_GetParamFromTable(PARAM_VTARGET)->ParamValue = ((5 * 10 * ADC_GetResult()) / 1024);
V2Params_SetParameterValue(PARAM_VTARGET, ((5 * 10 * ADC_GetResult()) / 1024));
#endif
}
@ -121,6 +121,10 @@ uint8_t V2Params_GetParameterPrivileges(const uint8_t ParamID)
}
/** Retrieves the current value for a given parameter in the parameter table.
*
* \note This function does not first check for read privileges - if the value is being sent to the host via a
* GET PARAM command, \ref V2Params_GetParameterPrivileges() should be called first to ensure that the
* parameter is host-readable.
*
* \param[in] ParamID Parameter ID whose value is to be retrieved from the table
*
@ -137,6 +141,10 @@ uint8_t V2Params_GetParameterValue(const uint8_t ParamID)
}
/** Sets the value for a given parameter in the parameter table.
*
* \note This function does not first check for write privileges - if the value is being sourced from the host
* via a SET PARAM command, \ref V2Params_GetParameterPrivileges() should be called first to ensure that the
* parameter is host-writable.
*
* \param[in] ParamID Parameter ID whose value is to be set in the table
* \param[in] Value New value to set the parameter to
@ -153,8 +161,8 @@ void V2Params_SetParameterValue(const uint8_t ParamID, const uint8_t Value)
ParamInfo->ParamValue = Value;
/* The target RESET line polarity is a non-volatile parameter, save to EEPROM when changed */
if ((ParamID == PARAM_RESET_POLARITY) && (eeprom_read_byte(&EEPROM_Rest_Polarity) != Value))
eeprom_write_byte(&EEPROM_Rest_Polarity, Value);
if (ParamID == PARAM_RESET_POLARITY)
eeprom_update_byte(&EEPROM_Rest_Polarity, Value);
}
/** Retrieves a parameter entry (including ID, value and privileges) from the parameter table that matches the given

2
Projects/TemperatureDataLogger/TempDataLogger.c
View File

@ -308,6 +308,6 @@ void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDI
if (LoggingInterval500MS_SRAM != ReportParams->LogInterval500MS)
{
LoggingInterval500MS_SRAM = ReportParams->LogInterval500MS;
eeprom_write_byte(&LoggingInterval500MS_EEPROM, LoggingInterval500MS_SRAM);
eeprom_update_byte(&LoggingInterval500MS_EEPROM, LoggingInterval500MS_SRAM);
}
}