Hello there,

Source code is

max_tu_symbol = TU_SIZE_RECOMMENDED - 1;     tc_write(DP0_MISC, (max_tu_symbol << 23) | TU_SIZE_RECOMMENDED | BPC_8);

and

#define TU_SIZE_RECOMMENDED     (0x3f << 16) /* LSCLK cycles per TU */

So it looks to me like 44 bits are required. Suggest use type long ?

Regards

David Binderman