Bridgetek FT801 - CMD_GETPTR - Get the End Memory Address of Inflated Data

FT800 Series Programmer Guide
Version 2.1
Document Reference No.: BRT_000030 Clearance No.: BRT#037
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5.42 CMD_GETPTR - get the end memory address of inflated
data
C prototype
void cmd_getptr( uint32_t result
);
Parameters
result
The end address of decompressed data done by CMD_INFLATE.
The starting address of decompressed data as was specified by CMD_INFLATE,
while the end address of decompressed data can be retrieved by this command.
It is one out parameter and can be passed in as any value with CMD_GETPTR to
RAM_CMD.
Command layout
+0
CMD_GETPTR (0xffffff23)
+4
result
Examples
cmd_inflate(1000); //Decompress the data into RAM_G + 1000
...... //Following the zlib compressed data
While(rd16(REG_CMD_WRITE) != rd16(REG_CMD_READ)); //Wait till the
compression was done
uint16_t x = rd16(REG_CMD_WRITE);
uint32_t ending_address = 0;
cmd_getptr(0);
ending_address = rd32(RAM_CMD + x + 4);
Code snippet 13 CMD_GETPTR command example