X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/ce044844eaf33ab4dacf199e136abc190125f284..35dac470f243d234d72f34cbaeb1d6c8a15bc435:/Projects/AVRISP/Lib/XPROG/TINYNVM.c

diff --git a/Projects/AVRISP/Lib/XPROG/TINYNVM.c b/Projects/AVRISP/Lib/XPROG/TINYNVM.c
index 206ea39f2..f4b90ffa5 100644
--- a/Projects/AVRISP/Lib/XPROG/TINYNVM.c
+++ b/Projects/AVRISP/Lib/XPROG/TINYNVM.c
@@ -36,8 +36,79 @@
 #define  INCLUDE_FROM_TINYNVM_C
 #include "TINYNVM.h"
 
-#if defined(ENABLE_TPI_PROTOCOL) || defined(__DOXYGEN__)
+#if defined(ENABLE_XPROG_PROTOCOL) || defined(__DOXYGEN__)
 
-// TODO
+/** Busy-waits while the NVM controller is busy performing a NVM operation, such as a FLASH page read.
+ *
+ *  \return Boolean true if the NVM controller became ready within the timeout period, false otherwise
+ */
+bool TINYNVM_WaitWhileNVMBusBusy(void)
+{
+	TCNT0 = 0;
+	TIFR0 = (1 << OCF1A);
+			
+	uint8_t TimeoutMS = TINY_NVM_BUSY_TIMEOUT_MS;
+	
+	/* Poll the STATUS register to check to see if NVM access has been enabled */
+	while (TimeoutMS)
+	{
+		/* Send the SLDCS command to read the TPI STATUS register to see the NVM bus is active */
+		XPROGTarget_SendByte(TPI_CMD_SLDCS | TPI_STATUS_REG);
+		if (XPROGTarget_ReceiveByte() & TPI_STATUS_NVM)
+		  return true;
+
+		if (TIFR0 & (1 << OCF1A))
+		{
+			TIFR0 = (1 << OCF1A);
+			TimeoutMS--;
+		}
+	}
+	
+	return false;
+}
+
+/** Reads memory from the target's memory spaces.
+ *
+ *  \param[in]  ReadAddress  Start address to read from within the target's address space
+ *  \param[out] ReadBuffer   Buffer to store read data into
+ *  \param[in]  ReadSize     Number of bytes to read
+ *
+ *  \return Boolean true if the command sequence complete successfully
+ */
+bool TINYNVM_ReadMemory(const uint32_t ReadAddress, uint8_t* ReadBuffer, const uint16_t ReadSize)
+{
+	// TODO
+	
+	return true;
+}
+
+/** Writes byte addressed memory to the target's memory spaces.
+ *
+ *  \param[in]  WriteCommand  Command to send to the device to write each memory byte
+ *  \param[in]  WriteAddress  Start address to write to within the target's address space
+ *  \param[in]  WriteBuffer   Buffer to source data from
+ *
+ *  \return Boolean true if the command sequence complete successfully
+ */
+bool TINYNVM_WriteMemory(const uint8_t WriteCommand, const uint32_t WriteAddress, const uint8_t* WriteBuffer)
+{
+	// TODO
+	
+	return true;
+}
+
+/** Erases a specific memory space of the target.
+ *
+ *  \param[in] EraseCommand  NVM erase command to send to the device
+ *  \param[in] Address  Address inside the memory space to erase
+ *
+ *  \return Boolean true if the command sequence complete successfully
+ */
+bool TINYNVM_EraseMemory(const uint8_t EraseCommand, const uint32_t Address)
+{
+	// TODO
+	
+	return true;
+}
 
 #endif