Complete TPI protocol code to enter and exit TPI programming mode for the ATTINY...

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

diff --git a/Projects/AVRISP/Lib/XPROG/TINYNVM.c b/Projects/AVRISP/Lib/XPROG/TINYNVM.c
index 206ea39..f4b90ff 100644 (file)
--- a/Projects/AVRISP/Lib/XPROG/TINYNVM.c
+++ b/Projects/AVRISP/Lib/XPROG/TINYNVM.c
@@ -36,8 +36,79 @@
 #define  INCLUDE_FROM_TINYNVM_C\r
 #include "TINYNVM.h"\r
 \r
-#if defined(ENABLE_TPI_PROTOCOL) || defined(__DOXYGEN__)\r
+#if defined(ENABLE_XPROG_PROTOCOL) || defined(__DOXYGEN__)\r
 \r
-// TODO\r
+/** Busy-waits while the NVM controller is busy performing a NVM operation, such as a FLASH page read.\r
+ *\r
+ *  \return Boolean true if the NVM controller became ready within the timeout period, false otherwise\r
+ */\r
+bool TINYNVM_WaitWhileNVMBusBusy(void)\r
+{\r
+       TCNT0 = 0;\r
+       TIFR0 = (1 << OCF1A);\r
+                       \r
+       uint8_t TimeoutMS = TINY_NVM_BUSY_TIMEOUT_MS;\r
+       \r
+       /* Poll the STATUS register to check to see if NVM access has been enabled */\r
+       while (TimeoutMS)\r
+       {\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
+               if (TIFR0 & (1 << OCF1A))\r
+               {\r
+                       TIFR0 = (1 << OCF1A);\r
+                       TimeoutMS--;\r
+               }\r
+       }\r
+       \r
+       return false;\r
+}\r
+\r
+/** Reads memory from the target's memory spaces.\r
+ *\r
+ *  \param[in]  ReadAddress  Start address to read from within the target's address space\r
+ *  \param[out] ReadBuffer   Buffer to store read data into\r
+ *  \param[in]  ReadSize     Number of bytes to read\r
+ *\r
+ *  \return Boolean true if the command sequence complete successfully\r
+ */\r
+bool TINYNVM_ReadMemory(const uint32_t ReadAddress, uint8_t* ReadBuffer, const uint16_t ReadSize)\r
+{\r
+       // TODO\r
+       \r
+       return true;\r
+}\r
+\r
+/** Writes byte addressed memory to the target's memory spaces.\r
+ *\r
+ *  \param[in]  WriteCommand  Command to send to the device to write each memory byte\r
+ *  \param[in]  WriteAddress  Start address to write to within the target's address space\r
+ *  \param[in]  WriteBuffer   Buffer to source data from\r
+ *\r
+ *  \return Boolean true if the command sequence complete successfully\r
+ */\r
+bool TINYNVM_WriteMemory(const uint8_t WriteCommand, const uint32_t WriteAddress, const uint8_t* WriteBuffer)\r
+{\r
+       // TODO\r
+       \r
+       return true;\r
+}\r
+\r
+/** Erases a specific memory space of the target.\r
+ *\r
+ *  \param[in] EraseCommand  NVM erase command to send to the device\r
+ *  \param[in] Address  Address inside the memory space to erase\r
+ *\r
+ *  \return Boolean true if the command sequence complete successfully\r
+ */\r
+bool TINYNVM_EraseMemory(const uint8_t EraseCommand, const uint32_t Address)\r
+{\r
+       // TODO\r
+       \r
+       return true;\r
+}\r
 \r
 #endif\r