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-rw-r--r--Projects/AVRISP/AVRISP.c9
-rw-r--r--Projects/AVRISP/Lib/V2ProtocolParams.c17
-rw-r--r--Projects/AVRISP/Lib/V2ProtocolParams.h7
3 files changed, 24 insertions, 9 deletions
diff --git a/Projects/AVRISP/AVRISP.c b/Projects/AVRISP/AVRISP.c
index ce16aebfa..e4d467f54 100644
--- a/Projects/AVRISP/AVRISP.c
+++ b/Projects/AVRISP/AVRISP.c
@@ -46,7 +46,7 @@ int main(void)
{
SetupHardware();
- V2Params_LoadEEPROMParamValues();
+ V2Params_LoadNonVolatileParamValues();
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
@@ -54,11 +54,8 @@ int main(void)
{
Process_AVRISP_Commands();
- #if defined(ADC)
- /* Update VTARGET parameter with the latest ADC conversion of VTARGET on supported AVR models */
- V2Params_SetParameterValue(PARAM_VTARGET, ((5 * 10 * ADC_GetResult()) / 1024));
- #endif
-
+ V2Params_UpdateParamValues();
+
USB_USBTask();
}
}
diff --git a/Projects/AVRISP/Lib/V2ProtocolParams.c b/Projects/AVRISP/Lib/V2ProtocolParams.c
index 9914c085e..2d646a93c 100644
--- a/Projects/AVRISP/Lib/V2ProtocolParams.c
+++ b/Projects/AVRISP/Lib/V2ProtocolParams.c
@@ -85,12 +85,25 @@ static ParameterItem_t ParameterTable[] =
/** Loads saved non-volatile parameter values from the EEPROM into the parameter table, as needed. */
-void V2Params_LoadEEPROMParamValues(void)
+void V2Params_LoadNonVolatileParamValues(void)
{
- /* Target RESET line polarity is a non-volatile value, retrieve current parameter value from EEPROM */
+ /* Target RESET line polarity is a non-volatile value, retrieve current parameter value from EEPROM -
+ * NB: Cannot call V2Protocol_SetParameterValue() here, as that will cause another EEPROM write!
+ */
V2Params_GetParamFromTable(PARAM_RESET_POLARITY)->ParamValue = eeprom_read_byte(&EEPROM_Rest_Polarity);
}
+/** Updates any parameter values that are sourced from hardware rather than explicitly set by the host, such as
+ * VTARGET levels from the ADC on supported AVR models.
+ */
+void V2Params_UpdateParamValues(void)
+{
+ #if defined(ADC)
+ /* Update VTARGET parameter with the latest ADC conversion of VTARGET on supported AVR models */
+ V2Params_GetParamFromTable(PARAM_VTARGET)->ParamValue = ((5 * 10 * ADC_GetResult()) / 1024);
+ #endif
+}
+
/** Retrieves the host PC read/write privellages for a given parameter in the parameter table. This should
* be called before calls to \ref V2Params_GetParameterValue() or \ref V2Params_SetParameterValue() when
* getting or setting parameter values in response to requests from the host.
diff --git a/Projects/AVRISP/Lib/V2ProtocolParams.h b/Projects/AVRISP/Lib/V2ProtocolParams.h
index 9c0f044c2..9ad84e7a3 100644
--- a/Projects/AVRISP/Lib/V2ProtocolParams.h
+++ b/Projects/AVRISP/Lib/V2ProtocolParams.h
@@ -42,6 +42,10 @@
#include <LUFA/Version.h>
+ #if defined(ADC)
+ #include <LUFA/Drivers/Peripheral/ADC.h>
+ #endif
+
#include "V2Protocol.h"
#include "V2ProtocolConstants.h"
@@ -62,7 +66,8 @@
} ParameterItem_t;
/* Function Prototypes: */
- void V2Params_LoadEEPROMParamValues(void);
+ void V2Params_LoadNonVolatileParamValues(void);
+ void V2Params_UpdateParamValues(void);
uint8_t V2Params_GetParameterPrivellages(uint8_t ParamID);
uint8_t V2Params_GetParameterValue(uint8_t ParamID);