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What to do if the program won't write properly?

Latest Updated:03/24/2008

Question:

In user program mode, I want to write a program to the internal ROM via external memory (16-bit bus/little endian/byte data), but the program won't write properly. What should I do?

Answer:

When the external memory is 16-bit bus, little endian, or byte data, byte transfer to internal RAM first and then expand to the internal ROM. Follow the same procedure for different external memory conditions as well, but remember to consider the alignment of the data transferred to internal RAM.
Suitable Products
H8SX/1720S (H8SX/1720, H8SX/1720S)
H8SX/1668R, H8SX/1668M
H8SX/1663
H8SX/1658R, H8SX/1658M
H8SX/1657
H8SX/1653
H8SX/1650, H8SX/1651
H8SX/1648A, H8SX/1648L
H8SX/1638, H8SX/1638L
H8SX/1622
H8SX/1580
H8SX/1568
H8SX/1558
H8SX/1544
H8SX/1520R
H8SX/1520