CMD_CI
u8 buf[] = {CMD_CI, 0x02, 0x40 | addr >> 8, addr & 0xff, 0x00, 1};
u8 buf[] = {CMD_CI, 0x03, 0x40 | addr >> 8, addr & 0xff, 0x00, 1, val};
u8 buf[] = {CMD_CI, 0x04, 0x40, addr, 0x00, 1};
u8 buf[] = {CMD_CI, 0x05, 0x40, addr, 0x00, 1, val};