More improvements to the incomplete BluetoothHost demo - add Disconnection Event...

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

diff --git a/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c b/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
index 91ed775..c0f04c6 100644 (file)
--- a/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
+++ b/Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
@@ -65,7 +65,7 @@ static void TINYNVM_SendReadNVMRegister(const uint8_t Address)
  */\r
 static void TINYNVM_SendWriteNVMRegister(const uint8_t Address)\r
 {\r
  */\r
 static void TINYNVM_SendWriteNVMRegister(const uint8_t Address)\r
 {\r

-       /* The TPI command for writing to the I/O space uses weird addressing, where the I/O address's upper\r
+       /* The TPI command for reading from the I/O space uses strange addressing, where the I/O address's upper\r

         * two bits of the 6-bit address are shifted left once */\r
        XPROGTarget_SendByte(TPI_CMD_SOUT | ((Address & 0x30) << 1) | (Address & 0x0F));\r
 }\r
         * two bits of the 6-bit address are shifted left once */\r
        XPROGTarget_SendByte(TPI_CMD_SOUT | ((Address & 0x30) << 1) | (Address & 0x0F));\r
 }\r


@@ -82,9 +82,19 @@ bool TINYNVM_WaitWhileNVMBusBusy(void)
                /* Send the SLDCS command to read the TPI STATUS register to see the NVM bus is active */\r
                XPROGTarget_SendByte(TPI_CMD_SLDCS | TPI_STATUS_REG);\r
                if (XPROGTarget_ReceiveByte() & TPI_STATUS_NVM)\r
                /* Send the SLDCS command to read the TPI STATUS register to see the NVM bus is active */\r
                XPROGTarget_SendByte(TPI_CMD_SLDCS | TPI_STATUS_REG);\r
                if (XPROGTarget_ReceiveByte() & TPI_STATUS_NVM)\r

-                 return true;\r
+               {\r
+                       TimeoutMSRemaining = COMMAND_TIMEOUT_MS;\r
+                       return true;\r
+               }\r
+\r
+               /* Manage software timeout */\r
+               if (TIFR0 & (1 << OCF0A))\r
+               {\r
+                       TIFR0 |= (1 << OCF0A);\r
+                       TimeoutMSRemaining--;\r
+               }\r

        }\r
        }\r

-       \r
+\r

        return false;\r
 }\r
 \r
        return false;\r
 }\r
 \r


@@ -103,9 +113,19 @@ bool TINYNVM_WaitWhileNVMControllerBusy(void)
 \r
                /* Check to see if the BUSY flag is still set */\r
                if (!(XPROGTarget_ReceiveByte() & (1 << 7)))\r
 \r
                /* Check to see if the BUSY flag is still set */\r
                if (!(XPROGTarget_ReceiveByte() & (1 << 7)))\r

-                 return true;\r
+               {\r
+                       TimeoutMSRemaining = COMMAND_TIMEOUT_MS;\r
+                       return true;\r
+               }\r
+\r
+               /* Manage software timeout */\r
+               if (TIFR0 & (1 << OCF0A))\r
+               {\r
+                       TIFR0 |= (1 << OCF0A);\r
+                       TimeoutMSRemaining--;\r
+               }\r

        }\r
        }\r

-       \r
+\r

        return false;\r
 }\r
 \r
        return false;\r
 }\r
 \r


@@ -167,6 +187,10 @@ bool TINYNVM_WriteMemory(const uint16_t WriteAddress, uint8_t* WriteBuffer, uint
        \r
        while (WriteLength)\r
        {\r
        \r
        while (WriteLength)\r
        {\r

+               /* Wait until the NVM controller is no longer busy */\r
+               if (!(TINYNVM_WaitWhileNVMControllerBusy()))\r
+                 return false;\r
+\r

                /* Write the low byte of data to the target */\r
                XPROGTarget_SendByte(TPI_CMD_SST | TPI_POINTER_INDIRECT_PI);\r
                XPROGTarget_SendByte(*(WriteBuffer++));\r
                /* Write the low byte of data to the target */\r
                XPROGTarget_SendByte(TPI_CMD_SST | TPI_POINTER_INDIRECT_PI);\r
                XPROGTarget_SendByte(*(WriteBuffer++));\r


@@ -175,10 +199,6 @@ bool TINYNVM_WriteMemory(const uint16_t WriteAddress, uint8_t* WriteBuffer, uint
                XPROGTarget_SendByte(TPI_CMD_SST | TPI_POINTER_INDIRECT_PI);\r
                XPROGTarget_SendByte(*(WriteBuffer++));\r
 \r
                XPROGTarget_SendByte(TPI_CMD_SST | TPI_POINTER_INDIRECT_PI);\r
                XPROGTarget_SendByte(*(WriteBuffer++));\r
 \r

-               /* Wait until the NVM controller is no longer busy */\r
-               if (!(TINYNVM_WaitWhileNVMControllerBusy()))\r
-                 return false;\r
-\r

                /* Need to decrement the write length twice, since we read out a whole word */\r
                WriteLength -= 2;\r
        }\r
                /* Need to decrement the write length twice, since we read out a whole word */\r
                WriteLength -= 2;\r
        }\r