diff options
Diffstat (limited to 'Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c')
| -rw-r--r-- | Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c b/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c index 5275cca8d..1633fb24d 100644 --- a/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c +++ b/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c @@ -124,6 +124,10 @@ 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 */
+ XPROGTarget_SendByte(PDI_CMD_STCS | PDI_CTRL_REG);
+ XPROGTarget_SendByte(0x04);
+
/* Enable access to the XPROG NVM bus by sending the documented NVM access key to the device */
XPROGTarget_SendByte(PDI_CMD_KEY);
for (uint8_t i = sizeof(PDI_NVMENABLE_KEY); i > 0; i--)
@@ -134,10 +138,13 @@ static void XPROGProtocol_EnterXPROGMode(void) }
else
{
- #if 0
/* Enable TPI programming mode with the attached target */
XPROGTarget_EnableTargetTPI();
+ /* Lower direction change guard time to 8 USART bits */
+ XPROGTarget_SendByte(TPI_CMD_SSTCS | TPI_CTRL_REG);
+ XPROGTarget_SendByte(0x04);
+
/* Enable access to the XPROG NVM bus by sending the documented NVM access key to the device */
XPROGTarget_SendByte(TPI_CMD_SKEY);
for (uint8_t i = sizeof(TPI_NVMENABLE_KEY); i > 0; i--)
@@ -145,8 +152,6 @@ static void XPROGProtocol_EnterXPROGMode(void) /* Wait until the NVM bus becomes active */
NVMBusEnabled = TINYNVM_WaitWhileNVMBusBusy();
- #endif
- NVMBusEnabled = true;
}
Endpoint_Write_Byte(CMD_XPROG);
|