如何动态更改发射功率

uint16_t nv_value_len = 0;
uint8_t nv_value = 0;
uapi_nv_read(0x20A0, sizeof(uint16_t), &nv_value_len, &nv_value);
if (nv_value != 7) {     // 7:btc功率档位
    nv_value = 7;       // 7:btc功率档位
    uapi_nv_write(0x20A0, (uint8_t *)&(nv_value), sizeof(nv_value));
}