Commit 12a01ed7 authored by Dean Camera's avatar Dean Camera
Browse files

Increased the speed of both software and hardware TPI/PDI programming modes of the AVRISP project.

parent 10b9394a
......@@ -14,6 +14,7 @@
* <b>Changed:</b>
* - AVRISP programmer project now has a more robust timeout system, allowing for a doubling of the software USART speed
* for PDI and TPI programming
* - Increased the speed of both software and hardware TPI/PDI programming modes of the AVRISP project
*
* <b>Fixed:</b>
* - (None)
......
......@@ -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:
......
......@@ -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);
......
......@@ -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
......
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment