Hi all: Why the nand_wait() wait for 20ms for nand program. could we expand this time to 40ms? I have a nand chip : Micron MT29F64G08CBABAWP. The chip's BUSY/READY pin may needs more then 20ms to become ready, though its datasheet tells me the tPROG's max value is 2.5ms. thanks Huang Shijie