X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/7f9f97c792dee6875fbca9806422bdd7d6c5a657..aca7863350509a1f390eda93ac0150378d8cd16c:/Projects/AVRISP-MKII/Lib/V2Protocol.c

diff --git a/Projects/AVRISP-MKII/Lib/V2Protocol.c b/Projects/AVRISP-MKII/Lib/V2Protocol.c
index 093c07862..3df8045aa 100644
--- a/Projects/AVRISP-MKII/Lib/V2Protocol.c
+++ b/Projects/AVRISP-MKII/Lib/V2Protocol.c
@@ -42,12 +42,22 @@ uint32_t CurrentAddress;
 /** Flag to indicate that the next read/write operation must update the device's current address */
 bool MustSetAddress;
 
-
-/** ISR for the management of the command execution timeout counter */
-ISR(TIMER0_COMPA_vect, ISR_BLOCK)
+/** Initializes the hardware and software associated with the V2 protocol command handling. */
+void V2Protocol_Init(void)
 {
-	if (TimeoutMSRemaining)
-	  TimeoutMSRemaining--;
+	#if defined(ADC)
+	/* Initialize the ADC converter for VTARGET level detection on supported AVR models */
+	ADC_Init(ADC_FREE_RUNNING | ADC_PRESCALE_128);
+	ADC_SetupChannel(VTARGET_ADC_CHANNEL);
+	ADC_StartReading(VTARGET_ADC_CHANNEL_MASK | ADC_RIGHT_ADJUSTED | ADC_REFERENCE_AVCC);
+	#endif
+	
+	/* Millisecond timer initialization for managing the command timeout counter */
+	OCR0A  = ((F_CPU / 64) / 1000);
+	TCCR0A = (1 << WGM01);
+	TCCR0B = ((1 << CS01) | (1 << CS00));
+	
+	V2Params_LoadNonVolatileParamValues();
 }
 
 /** Master V2 Protocol packet handler, for received V2 Protocol packets from a connected host.
@@ -59,8 +69,7 @@ void V2Protocol_ProcessCommand(void)
 	uint8_t V2Command = Endpoint_Read_Byte();
 	
 	TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
-	TIMSK0 |= (1 << OCIE0A);
-
+	
 	switch (V2Command)
 	{
 		case CMD_SIGN_ON:
@@ -120,8 +129,6 @@ void V2Protocol_ProcessCommand(void)
 			V2Protocol_UnknownCommand(V2Command);
 			break;
 	}
-		
-	TIMSK0 &= ~(1 << OCIE0A);
 
 	Endpoint_WaitUntilReady();
 	Endpoint_SetEndpointDirection(ENDPOINT_DIR_OUT);
@@ -158,12 +165,12 @@ static void V2Protocol_SignOn(void)
 	Endpoint_Write_Byte(CMD_SIGN_ON);
 	Endpoint_Write_Byte(STATUS_CMD_OK);
 	Endpoint_Write_Byte(sizeof(PROGRAMMER_ID) - 1);
-	Endpoint_Write_Stream_LE(PROGRAMMER_ID, (sizeof(PROGRAMMER_ID) - 1));
+	Endpoint_Write_Stream_LE(PROGRAMMER_ID, (sizeof(PROGRAMMER_ID) - 1), NO_STREAM_CALLBACK);
 	Endpoint_ClearIN();
 }
 
-/** Handler for the CMD_RESET_PROTECTION command, currently implemented as a dummy ACK function
- *  as no ISP short-circuit protection is currently implemented.
+/** Handler for the CMD_RESET_PROTECTION command, implemented as a dummy ACK function as
+ *  no target short-circuit protection is currently implemented.
  */
 static void V2Protocol_ResetProtection(void)
 {
@@ -220,7 +227,7 @@ static void V2Protocol_GetSetParam(const uint8_t V2Command)
  */
 static void V2Protocol_LoadAddress(void)
 {
-	Endpoint_Read_Stream_BE(&CurrentAddress, sizeof(CurrentAddress));
+	Endpoint_Read_Stream_BE(&CurrentAddress, sizeof(CurrentAddress), NO_STREAM_CALLBACK);
 
 	Endpoint_ClearOUT();
 	Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);