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Moved out target-related V2 protocol commands into a seperate file for the AVRISP project.

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Added Load Extended Command functionality to the LOAD ADDRESS V2 Protocol command handler for devices with more than 64KB of memory.
This commit is contained in:
Dean Camera 2009-08-23 10:17:13 +00:00
parent f229502d9a
commit 7e74bd3ea2
7 changed files with 185 additions and 83 deletions
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74
Projects/Incomplete/AVRISP/Lib/V2Protocol.c
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@ -36,77 +36,6 @@
#define INCLUDE_FROM_V2PROTOCOL_C
#include "V2Protocol.h"
uint32_t CurrentAddress;
/* Table of masks for SPI_Init() from a given PARAM_SCK_DURATION value */
static const uint8_t SPIMaskFromSCKDuration[] =
{
#if (F_CPU == 8000000)
SPI_SPEED_FCPU_DIV_2,
#endif
SPI_SPEED_FCPU_DIV_2, SPI_SPEED_FCPU_DIV_4, SPI_SPEED_FCPU_DIV_8,
SPI_SPEED_FCPU_DIV_16, SPI_SPEED_FCPU_DIV_32, SPI_SPEED_FCPU_DIV_64
#if (F_CPU == 16000000)
, SPI_SPEED_FCPU_DIV_128
#endif
};
static uint8_t V2Protocol_GetSPIPrescalerMask(void)
{
uint8_t SCKDuration = V2Params_GetParameterValue(PARAM_SCK_DURATION);
if (SCKDuration >= sizeof(SPIMaskFromSCKDuration))
SCKDuration = (sizeof(SPIMaskFromSCKDuration) - 1);
return SPIMaskFromSCKDuration[SCKDuration];
}
static void V2Protocol_ChangeTargetResetLine(bool ResetTarget)
{
if (ResetTarget)
{
RESET_LINE_DDR |= RESET_LINE_MASK;
if (!(V2Params_GetParameterValue(PARAM_RESET_POLARITY)))
RESET_LINE_PORT |= RESET_LINE_MASK;
}
else
{
RESET_LINE_PORT &= ~RESET_LINE_MASK;
RESET_LINE_DDR &= ~RESET_LINE_MASK;
}
}
static void V2Protocol_DelayMS(uint8_t MS)
{
while (MS--)
_delay_ms(1);
}
static uint8_t V2Protocol_WaitWhileTargetBusy(void)
{
uint8_t TimeoutMS = TARGET_BUST_TIMEOUT_MS;
uint8_t ResponseByte;
do
{
V2Protocol_DelayMS(1);
SPI_SendByte(0xF0);
SPI_SendByte(0x00);
SPI_SendByte(0x00);
ResponseByte = SPI_ReceiveByte();
}
while ((ResponseByte & 0x01) && (TimeoutMS--));
if (!(TimeoutMS))
return STATUS_CMD_TOUT;
else
return STATUS_CMD_OK;
}
void V2Protocol_ProcessCommand(void)
{
uint8_t V2Command = Endpoint_Read_Byte();
@ -223,7 +152,8 @@ static void V2Protocol_Command_LoadAddress(void)
Endpoint_ClearOUT();
Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
// TODO: Check for extended address
if (CurrentAddress & (1UL << 31))
V2Protocol_LoadExtendedAddress();
Endpoint_Write_Byte(CMD_LOAD_ADDRESS);
Endpoint_Write_Byte(STATUS_CMD_OK);