Clean up and add more comments to the AVRISP-MKII project. Make sure the SPI_MULTI...

[pub/USBasp.git] / Projects / AVRISP-MKII / Lib / XPROG / XPROGProtocol.c

diff --git a/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c b/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
index 5275cca..1be159c 100644 (file)
--- a/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
+++ b/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
@@ -1,13 +1,13 @@
 /*\r
              LUFA Library\r
-     Copyright (C) Dean Camera, 2009.\r
+     Copyright (C) Dean Camera, 2010.\r
               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r
-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
 \r
   Permission to use, copy, modify, distribute, and sell this \r
   software and its documentation for any purpose is hereby granted\r
@@ -38,7 +38,7 @@
 \r
 #if defined(ENABLE_XPROG_PROTOCOL) || defined(__DOXYGEN__)\r
 /** Base absolute address for the target's NVM controller for PDI programming */\r
-uint32_t XPROG_Param_NVMBase    = 0x010001C0;\r
+uint32_t XPROG_Param_NVMBase = 0x010001C0;\r
 \r
 /** Size in bytes of the target's EEPROM page */\r
 uint16_t XPROG_Param_EEPageSize;\r
@@ -124,6 +124,10 @@ static void XPROGProtocol_EnterXPROGMode(void)
                XPROGTarget_SendByte(PDI_CMD_STCS | PDI_RESET_REG);     \r
                XPROGTarget_SendByte(PDI_RESET_KEY);\r
 \r
+               /* Lower direction change guard time to 8 USART bits */\r
+               XPROGTarget_SendByte(PDI_CMD_STCS | PDI_CTRL_REG);      \r
+               XPROGTarget_SendByte(0x04);\r
+\r
                /* Enable access to the XPROG NVM bus by sending the documented NVM access key to the device */\r
                XPROGTarget_SendByte(PDI_CMD_KEY);      \r
                for (uint8_t i = sizeof(PDI_NVMENABLE_KEY); i > 0; i--)\r
@@ -134,10 +138,13 @@ static void XPROGProtocol_EnterXPROGMode(void)
        }\r
        else\r
        {\r
-       #if 0\r
                /* Enable TPI programming mode with the attached target */\r
                XPROGTarget_EnableTargetTPI();\r
                \r
+               /* Lower direction change guard time to 8 USART bits */\r
+               XPROGTarget_SendByte(TPI_CMD_SSTCS | TPI_CTRL_REG);\r
+               XPROGTarget_SendByte(0x04);             \r
+               \r
                /* Enable access to the XPROG NVM bus by sending the documented NVM access key to the device */\r
                XPROGTarget_SendByte(TPI_CMD_SKEY);     \r
                for (uint8_t i = sizeof(TPI_NVMENABLE_KEY); i > 0; i--)\r
@@ -145,8 +152,6 @@ static void XPROGProtocol_EnterXPROGMode(void)
 \r
                /* Wait until the NVM bus becomes active */\r
                NVMBusEnabled = TINYNVM_WaitWhileNVMBusBusy();\r
-       #endif\r
-               NVMBusEnabled = true;\r
        }\r
        \r
        Endpoint_Write_Byte(CMD_XPROG);\r
@@ -450,10 +455,10 @@ static void XPROGProtocol_SetParam(void)
                case XPRG_PARAM_EEPPAGESIZE:\r
                        XPROG_Param_EEPageSize = Endpoint_Read_Word_BE();\r
                        break;\r
-               case XPRG_PARAM_NVMCMD:\r
+               case XPRG_PARAM_NVMCMD_REG:\r
                        XPROG_Param_NVMCMDRegAddr = Endpoint_Read_Byte();\r
                        break;\r
-               case XPRG_PARAM_NVMCSR:\r
+               case XPRG_PARAM_NVMCSR_REG:\r
                        XPROG_Param_NVMCSRRegAddr = Endpoint_Read_Byte();\r
                        break;\r
                default:\r