Reduced guard bit time in the AVRISP project PDI/TPI protocols to reduce the time...

[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 39f82a0..1633fb2 100644 (file)
--- 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);     \r
                XPROGTarget_SendByte(PDI_RESET_KEY);\r
 \r
                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
                /* 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


@@ -137,6 +141,10 @@ static void XPROGProtocol_EnterXPROGMode(void)
                /* Enable TPI programming mode with the attached target */\r
                XPROGTarget_EnableTargetTPI();\r
                \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
                /* 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


@@ -313,9 +321,14 @@ static void XPROGProtocol_WriteMemory(void)
        }\r
        else\r
        {\r
        }\r
        else\r
        {\r

+               Serial_TxByte((uint8_t)WriteMemory_XPROG_Params.Length);\r
+       \r

                /* Send write command to the TPI device, indicate timeout if occurred */\r
                /* Send write command to the TPI device, indicate timeout if occurred */\r

-               if (!(TINYNVM_WriteMemory(WriteMemory_XPROG_Params.Address, WriteMemory_XPROG_Params.ProgData[0])))\r
-                 ReturnStatus = XPRG_ERR_TIMEOUT;\r
+               if (!(TINYNVM_WriteMemory(WriteMemory_XPROG_Params.Address, WriteMemory_XPROG_Params.ProgData,\r
+                     WriteMemory_XPROG_Params.Length)))\r
+               {\r
+                       ReturnStatus = XPRG_ERR_TIMEOUT;\r
+               }\r

        }\r
        \r
        Endpoint_Write_Byte(CMD_XPROG);\r
        }\r
        \r
        Endpoint_Write_Byte(CMD_XPROG);\r


@@ -355,6 +368,8 @@ static void XPROGProtocol_ReadMemory(void)
        }\r
        else\r
        {\r
        }\r
        else\r
        {\r

+               Serial_TxByte((uint8_t)ReadMemory_XPROG_Params.Length);\r
+\r

                /* Read the TPI target's memory, indicate timeout if occurred */\r
                if (!(TINYNVM_ReadMemory(ReadMemory_XPROG_Params.Address, ReadBuffer, ReadMemory_XPROG_Params.Length)))\r
                  ReturnStatus = XPRG_ERR_TIMEOUT;\r
                /* Read the TPI target's memory, indicate timeout if occurred */\r
                if (!(TINYNVM_ReadMemory(ReadMemory_XPROG_Params.Address, ReadBuffer, ReadMemory_XPROG_Params.Length)))\r
                  ReturnStatus = XPRG_ERR_TIMEOUT;\r