friq_write_regr
friq_write_regr(pi, 0, 6, 0xa0 + j * 0x10);
friq_write_regr(pi, 0, 2, k ^ 0xaa);
friq_write_regr(pi, 0, 3, k ^ 0x55);
.write_regr = friq_write_regr,