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-rw-r--r--LUFA/DoxygenPages/ChangeLog.txt2
-rw-r--r--Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c4
-rw-r--r--Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c4
3 files changed, 5 insertions, 5 deletions
diff --git a/LUFA/DoxygenPages/ChangeLog.txt b/LUFA/DoxygenPages/ChangeLog.txt
index 3ba0fa486..36954c266 100644
--- a/LUFA/DoxygenPages/ChangeLog.txt
+++ b/LUFA/DoxygenPages/ChangeLog.txt
@@ -17,7 +17,7 @@
* - Core:
* - Android Accessory Host property strings changed from a struct of pointer to an array to prevent unaligned access on greater than 8-bit architectures
* - Library Applications:
- * - None
+ * - Raised the guard bits in the AVRISP-MKII clone project when in PDI and TPI to 32, to prevent communication errors on low quality connections to a target
*
* <b>Fixed:</b>
* - Core:
diff --git a/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c b/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
index 921fe015f..b8832372f 100644
--- a/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
+++ b/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
@@ -128,9 +128,9 @@ bool TINYNVM_EnableTPI(void)
/* Enable TPI programming mode with the attached target */
XPROGTarget_EnableTargetTPI();
- /* Lower direction change guard time to 0 USART bits */
+ /* Lower direction change guard time to 32 USART bits */
XPROGTarget_SendByte(TPI_CMD_SSTCS | TPI_CTRL_REG);
- XPROGTarget_SendByte(0x07);
+ XPROGTarget_SendByte(0x02);
/* 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/XMEGANVM.c b/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
index 567bd5777..e1169d5f1 100644
--- a/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
+++ b/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
@@ -131,9 +131,9 @@ bool XMEGANVM_EnablePDI(void)
XPROGTarget_SendByte(PDI_CMD_STCS | PDI_RESET_REG);
XPROGTarget_SendByte(PDI_RESET_KEY);
- /* Lower direction change guard time to 0 USART bits */
+ /* Lower direction change guard time to 32 USART bits */
XPROGTarget_SendByte(PDI_CMD_STCS | PDI_CTRL_REG);
- XPROGTarget_SendByte(0x07);
+ XPROGTarget_SendByte(0x02);
/* Enable access to the XPROG NVM bus by sending the documented NVM access key to the device */
XPROGTarget_SendByte(PDI_CMD_KEY);