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Change AVRISP project's timeout to be interrupt based again, but make the interrupt itself interruptable and use a seperate assembly file to hand-optimize the ISR code.

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Removed the cast to uint16_t on the set baud rate in the USBtoSerial project, so that the higher >1M baud rates can be selected (thanks to Steffan).
pull/1469/head
Dean Camera 15 years ago
parent 9a1560dc05
commit 3d28d53c3e
11 changed files with 66 additions and 117 deletions
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2
LUFA.pnproj
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File diff suppressed because one or more lines are too long

2
LUFA/ManPages/ChangeLog.txt
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@ -31,6 +31,8 @@
* - The USB_Init() function no longer calls sei() - the user is now responsible for enabling interrupts when they are ready
* for them to be enabled (thanks to Andrei Krainev)
* - The Audio_Device_IsSampleReceived() and Audio_Device_IsReadyForNextSample() functions are now inline, to reduce overhead
* - Removed the cast to uint16_t on the set baud rate in the USBtoSerial project, so that the higher >1M baud rates can be
* selected (thanks to Steffan)
*
* <b>Fixed:</b>
* - Fixed software PDI/TPI programming mode in the AVRISP project not correctly toggling just the clock pin

14
Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c
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@ -124,13 +124,6 @@ uint8_t ISPTarget_WaitForProgComplete(const uint8_t ProgrammingMode, const uint1
case PROG_MODE_PAGED_VALUE_MASK:
do
{
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
SPI_SendByte(ReadMemCommand);
SPI_SendByte(PollAddress >> 8);
SPI_SendByte(PollAddress & 0xFF);
@ -162,13 +155,6 @@ uint8_t ISPTarget_WaitWhileTargetBusy(void)
{
do
{
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
SPI_SendByte(0xF0);
SPI_SendByte(0x00);
SPI_SendByte(0x00);

23
Projects/AVRISP-MKII/Lib/Timeout.S
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@ -0,0 +1,23 @@
#include <avr/io.h>
#include "V2Protocol.h"
.global TIMER0_COMPA_vect
TIMER0_COMPA_vect:
sei
push r24
in r24, 0x3f
push r24
in r24, TimeoutMSRemaining
and r24, r24
breq Epilogue
subi r24, 0x01
out TimeoutMSRemaining, r24
Epilogue:
pop r24
out 0x3f, r24
pop r24
reti

8
Projects/AVRISP-MKII/Lib/V2Protocol.c
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@ -42,6 +42,7 @@ uint32_t CurrentAddress;
/** Flag to indicate that the next read/write operation must update the device's current address */
bool MustSetAddress;
/** Initializes the hardware and software associated with the V2 protocol command handling. */
void V2Protocol_Init(void)
{
@ -55,7 +56,7 @@ void V2Protocol_Init(void)
/* Millisecond timer initialization for managing the command timeout counter */
OCR0A = ((F_CPU / 64) / 1000);
TCCR0A = (1 << WGM01);
TCCR0B = ((1 << CS01) | (1 << CS00));
TIMSK0 = (1 << OCIE0A);
V2Params_LoadNonVolatileParamValues();
}
@ -68,7 +69,9 @@ void V2Protocol_ProcessCommand(void)
{
uint8_t V2Command = Endpoint_Read_Byte();
/* Start the timeout management timer */
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
TCCR0B = ((1 << CS01) | (1 << CS00));
switch (V2Command)
{
@ -129,6 +132,9 @@ void V2Protocol_ProcessCommand(void)
V2Protocol_UnknownCommand(V2Command);
break;
}
/* Disable the timeout management timer */
TCCR0B = 0;
Endpoint_WaitUntilReady();
Endpoint_SelectEndpoint(AVRISP_DATA_OUT_EPNUM);

44
Projects/AVRISP-MKII/Lib/V2Protocol.h
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@ -37,14 +37,16 @@
#define _V2_PROTOCOL_
/* Includes: */
#include <LUFA/Drivers/USB/USB.h>
#include <LUFA/Drivers/Peripheral/SPI.h>
#include "../Descriptors.h"
#include "V2ProtocolConstants.h"
#include "V2ProtocolParams.h"
#include "ISP/ISPProtocol.h"
#include "XPROG/XPROGProtocol.h"
#if !defined(__ASSEMBLER__)
#include <LUFA/Drivers/USB/USB.h>
#include <LUFA/Drivers/Peripheral/SPI.h>
#include "../Descriptors.h"
#include "V2ProtocolConstants.h"
#include "V2ProtocolParams.h"
#include "ISP/ISPProtocol.h"
#include "XPROG/XPROGProtocol.h"
#endif
/* Preprocessor Checks: */
#if ((BOARD == BOARD_XPLAIN) || (BOARD == BOARD_XPLAIN_REV1))
@ -80,19 +82,23 @@
#endif
/* External Variables: */
extern uint32_t CurrentAddress;
extern bool MustSetAddress;
#if !defined(__ASSEMBLER__)
extern uint32_t CurrentAddress;
extern bool MustSetAddress;
#endif
/* Function Prototypes: */
void V2Protocol_Init(void);
void V2Protocol_ProcessCommand(void);
#if defined(INCLUDE_FROM_V2PROTOCOL_C)
static void V2Protocol_UnknownCommand(const uint8_t V2Command);
static void V2Protocol_SignOn(void);
static void V2Protocol_GetSetParam(const uint8_t V2Command);
static void V2Protocol_ResetProtection(void);
static void V2Protocol_LoadAddress(void);
#if !defined(__ASSEMBLER__)
void V2Protocol_Init(void);
void V2Protocol_ProcessCommand(void);
#if defined(INCLUDE_FROM_V2PROTOCOL_C)
static void V2Protocol_UnknownCommand(const uint8_t V2Command);
static void V2Protocol_SignOn(void);
static void V2Protocol_GetSetParam(const uint8_t V2Command);
static void V2Protocol_ResetProtection(void);
static void V2Protocol_LoadAddress(void);
#endif
#endif
#endif

14
Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
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@ -94,13 +94,6 @@ bool TINYNVM_WaitWhileNVMBusBusy(void)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return true;
}
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
return false;
@ -131,13 +124,6 @@ bool TINYNVM_WaitWhileNVMControllerBusy(void)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return true;
}
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
return false;

14
Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
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@ -89,13 +89,6 @@ bool XMEGANVM_WaitWhileNVMBusBusy(void)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return true;
}
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
return false;
@ -127,13 +120,6 @@ bool XMEGANVM_WaitWhileNVMControllerBusy(void)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return true;
}
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
return false;

58
Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.c
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@ -328,15 +328,7 @@ uint8_t XPROGTarget_ReceiveByte(void)
#if defined(XPROG_VIA_HARDWARE_USART)
/* Wait until a byte has been received before reading */
while (!(UCSR1A & (1 << RXC1)) && TimeoutMSRemaining)
{
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
while (!(UCSR1A & (1 << RXC1)) && TimeoutMSRemaining);
if (TimeoutMSRemaining)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
@ -345,15 +337,7 @@ uint8_t XPROGTarget_ReceiveByte(void)
#else
/* Wait until a byte has been received before reading */
SoftUSART_BitCount = BITS_IN_USART_FRAME;
while (SoftUSART_BitCount && TimeoutMSRemaining)
{
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
while (SoftUSART_BitCount && TimeoutMSRemaining);
if (TimeoutMSRemaining)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
@ -402,14 +386,7 @@ static void XPROGTarget_SetTxMode(void)
IsSending = true;
#else
while (SoftUSART_BitCount && TimeoutMSRemaining)
{
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
while (SoftUSART_BitCount && TimeoutMSRemaining);
/* Wait for a full cycle of the clock */
SoftUSART_Data = 0x0001;
@ -443,14 +420,7 @@ static void XPROGTarget_SetRxMode(void)
DDRD &= ~(1 << 3);
PORTD &= ~(1 << 3);
#else
while (SoftUSART_BitCount && TimeoutMSRemaining)
{
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
while (SoftUSART_BitCount && TimeoutMSRemaining);
if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
{
@ -458,15 +428,7 @@ static void XPROGTarget_SetRxMode(void)
BITBANG_PDIDATA_PORT &= ~BITBANG_PDIDATA_MASK;
/* Wait until DATA line has been pulled up to idle by the target */
while (!(BITBANG_PDIDATA_PIN & BITBANG_PDIDATA_MASK) && TimeoutMSRemaining)
{
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
while (!(BITBANG_PDIDATA_PIN & BITBANG_PDIDATA_MASK) && TimeoutMSRemaining);
}
else
{
@ -474,15 +436,7 @@ static void XPROGTarget_SetRxMode(void)
BITBANG_TPIDATA_PORT &= ~BITBANG_TPIDATA_MASK;
/* Wait until DATA line has been pulled up to idle by the target */
while (!(BITBANG_TPIDATA_PIN & BITBANG_TPIDATA_MASK) && TimeoutMSRemaining)
{
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
while (!(BITBANG_TPIDATA_PIN & BITBANG_TPIDATA_MASK) && TimeoutMSRemaining);
}
#endif

2
Projects/AVRISP-MKII/makefile
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@ -157,7 +157,7 @@ CPPSRC =
# Even though the DOS/Win* filesystem matches both .s and .S the same,
# it will preserve the spelling of the filenames, and gcc itself does
# care about how the name is spelled on its command-line.
ASRC =
ASRC = Lib/Timeout.S
# Optimization level, can be [0, 1, 2, 3, s].

2
Projects/USBtoSerial/USBtoSerial.c
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@ -194,5 +194,5 @@ void EVENT_CDC_Device_LineEncodingChanged(USB_ClassInfo_CDC_Device_t* const CDCI
UCSR1A = (1 << U2X1);
UCSR1B = ((1 << RXCIE1) | (1 << TXEN1) | (1 << RXEN1));
UCSR1C = ConfigMask;
UBRR1 = SERIAL_2X_UBBRVAL((uint16_t)CDCInterfaceInfo->State.LineEncoding.BaudRateBPS);
UBRR1 = SERIAL_2X_UBBRVAL(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS);
}

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