Fixed broken lock byte programming in the AVRISP-MKII clone project for some XMEGA...

diff --git a/LUFA/ManPages/ChangeLog.txt b/LUFA/ManPages/ChangeLog.txt
index 805b3e1..23ef75c 100644 (file)
--- a/LUFA/ManPages/ChangeLog.txt
+++ b/LUFA/ManPages/ChangeLog.txt
@@ -68,6 +68,7 @@
   *  - Fixed incorrect LEDs_ChangeLEDs() function in the Benito board LED driver
   *  - Fixed incorrect USB_DeviceState value when unconfiguring the device without an address set
   *  - Fixed broken FLASH/EEPROM programming in the AVRISP-MKII clone project when writing in non-paged mode and the polling byte cannot be used
+  *  - Fixed broken lock byte programming in the AVRISP-MKII clone project for some XMEGA targets
   *
   *  \section Sec_ChangeLog100807 Version 100807
   *  <b>New:</b>

diff --git a/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c b/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
index 93419d0..537441f 100644 (file)
--- a/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
+++ b/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
@@ -216,10 +216,19 @@ bool XMEGANVM_WriteByteMemory(const uint8_t WriteCommand, const uint32_t WriteAd
        XMEGANVM_SendNVMRegAddress(XMEGA_NVM_REG_CMD);
        XPROGTarget_SendByte(WriteCommand);
        
-       /* Send new memory byte to the memory to the target */
+       /* Send new memory byte to the memory of the target */
        XPROGTarget_SendByte(PDI_CMD_STS | (PDI_DATSIZE_4BYTES << 2));
        XMEGANVM_SendAddress(WriteAddress);
        XPROGTarget_SendByte(Byte);
+
+       /* Lock bytes need a special confirmation sequence for the write to complete */
+       if (WriteCommand == XMEGA_NVM_CMD_WRITELOCK)
+       {
+               /* Set CMDEX bit in NVM CTRLA register to start the Lock Byte write sequence */
+               XPROGTarget_SendByte(PDI_CMD_STS | (PDI_DATSIZE_4BYTES << 2));
+               XMEGANVM_SendNVMRegAddress(XMEGA_NVM_REG_CTRLA);
+               XPROGTarget_SendByte(1 << 0);
+       }
        
        return true;
 }

diff --git a/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c b/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
index 0f5269d..85820fd 100644 (file)
--- a/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
+++ b/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
@@ -324,8 +324,6 @@ static void XPROGProtocol_WriteMemory(void)
                                EraseBuffCommand = XMEGA_NVM_CMD_ERASEEEPROMPAGEBUFF;                   
                                break;
                        case XPRG_MEM_TYPE_USERSIG:
-                               /* User signature is paged, but needs us to manually indicate the mode bits since the host doesn't set them */
-                               WriteMemory_XPROG_Params.PageMode = (XPRG_PAGEMODE_ERASE | XPRG_PAGEMODE_WRITE);
                                WriteCommand     = XMEGA_NVM_CMD_WRITEUSERSIG;
                                break;
                        case XPRG_MEM_TYPE_FUSE: