From 12a01ed72d0d6dbf243160302314870e7b29cc07 Mon Sep 17 00:00:00 2001 From: Dean Camera Date: Sun, 21 Feb 2010 05:44:12 +0000 Subject: Increased the speed of both software and hardware TPI/PDI programming modes of the AVRISP project. --- Projects/AVRISP-MKII/Lib/V2Protocol.c | 4 ++++ Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c | 8 ++++---- Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.h | 2 +- 3 files changed, 9 insertions(+), 5 deletions(-) (limited to 'Projects/AVRISP-MKII/Lib') diff --git a/Projects/AVRISP-MKII/Lib/V2Protocol.c b/Projects/AVRISP-MKII/Lib/V2Protocol.c index cea42eae5..f7e5e8102 100644 --- a/Projects/AVRISP-MKII/Lib/V2Protocol.c +++ b/Projects/AVRISP-MKII/Lib/V2Protocol.c @@ -42,6 +42,8 @@ uint32_t CurrentAddress; /** Flag to indicate that the next read/write operation must update the device's current address */ bool MustSetAddress; +bool CommandTimedOut; + /** Initializes the hardware and software associated with the V2 protocol command handling. */ void V2Protocol_Init(void) { @@ -68,6 +70,8 @@ void V2Protocol_ProcessCommand(void) { uint8_t V2Command = Endpoint_Read_Byte(); + CommandTimedOut = false; + switch (V2Command) { case CMD_SIGN_ON: diff --git a/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c b/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c index a6a57670b..805eaa31f 100644 --- a/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c +++ b/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c @@ -124,9 +124,9 @@ static void XPROGProtocol_EnterXPROGMode(void) XPROGTarget_SendByte(PDI_CMD_STCS | PDI_RESET_REG); XPROGTarget_SendByte(PDI_RESET_KEY); - /* Lower direction change guard time to 8 USART bits */ + /* Lower direction change guard time to 0 USART bits */ XPROGTarget_SendByte(PDI_CMD_STCS | PDI_CTRL_REG); - XPROGTarget_SendByte(0x04); + XPROGTarget_SendByte(0x07); /* Enable access to the XPROG NVM bus by sending the documented NVM access key to the device */ XPROGTarget_SendByte(PDI_CMD_KEY); @@ -141,9 +141,9 @@ static void XPROGProtocol_EnterXPROGMode(void) /* Enable TPI programming mode with the attached target */ XPROGTarget_EnableTargetTPI(); - /* Lower direction change guard time to 8 USART bits */ + /* Lower direction change guard time to 0 USART bits */ XPROGTarget_SendByte(TPI_CMD_SSTCS | TPI_CTRL_REG); - XPROGTarget_SendByte(0x04); + XPROGTarget_SendByte(0x07); /* Enable access to the XPROG NVM bus by sending the documented NVM access key to the device */ XPROGTarget_SendByte(TPI_CMD_SKEY); diff --git a/Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.h b/Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.h index d08a8b653..0c54ad4cf 100644 --- a/Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.h +++ b/Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.h @@ -81,7 +81,7 @@ #endif /** Number of cycles between each clock when software USART mode is used */ - #define BITS_BETWEEN_USART_CLOCKS 100 + #define BITS_BETWEEN_USART_CLOCKS 80 /** Total number of bits in a single USART frame */ #define BITS_IN_USART_FRAME 12 -- cgit v1.2.3