代码如下，各位高手指点：
void ini1846(void)
{
PDN_1846 = 1;
delay_ms(500);
write_RDA1846(0x30,0x01);
delay_ms(500);
write_RDA1846(0x30,0x04);
write_RDA1846(0x04,0xfd0); //26M
write_RDA1846(0x31,0x31);
write_RDA1846(0x33,0x44a5);
write_RDA1846(0x34,0x2b87);
write_RDA1846(0x41,0x470f);
write_RDA1846(0x44,0x0dff);
write_RDA1846(0x47,0x7fff);
write_RDA1846(0x4f,0x2c62);
write_RDA1846(0x53,0x94);
write_RDA1846(0x55,0x81);
write_RDA1846(0x56,0x0b22);
write_RDA1846(0x57,0x1c00);
write_RDA1846(0x5a,0x0edb);
write_RDA1846(0x60,0x101e);
write_RDA1846(0x63,0x16ad);
write_RDA1846(0x30,0x40a4); //26M
delay_ms(500);
write_RDA1846(0x30,0x40a6);
delay_ms(1000);
write_RDA1846(0x30,0x4006);
delay_ms(100);
write_RDA1846(0x15,0x1100);
write_RDA1846(0x32,0x4495);
write_RDA1846(0x3a,0x40c3);
write_RDA1846(0x3c,0xf1e);
write_RDA1846(0x3f,0x28d0);
write_RDA1846(0x48,0x20be);
write_RDA1846(0x59,0x0a50);
write_RDA1846(0x62,0x0a10); //without LNA
write_RDA1846(0x65,0x2494);
write_RDA1846(0x66,0xeb2e);
write_RDA1846(0x7f,0x01);
write_RDA1846(0x06,0x14);
write_RDA1846(0x07,0x020c);
write_RDA1846(0x08,0x0214);
write_RDA1846(0x09,0x030c);
write_RDA1846(0x0a,0x0314);
write_RDA1846(0x0b,0x0324);
write_RDA1846(0x0c,0x0344);
write_RDA1846(0x0d,0x1344);
write_RDA1846(0x0e,0x1b44);
write_RDA1846(0x0f,0x3f44);
write_RDA1846(0x12,0xe0eb);
write_RDA1846(0x7f,0x0);
//
write_RDA1846(0x30,0x4006); // shut down TX/RX
delay_ms(100);
write_RDA1846(0x1f,0x18); //int/code out
write_RDA1846(0x29,0x6e);
write_RDA1846(0x2A,0x1090); //450.825M
write_RDA1846(0x41,0x4704); //2.2k@50mV
write_RDA1846(0x44,0x00fe); // rx voice gain
write_RDA1846(0x59,0x0c90);
write_RDA1846(0x58,0x84fd); //filter bypass
write_RDA1846(0x0a,0x403); // tx@-11dbm
// write_RDA1846(0x30,0x4046); // enable TX
write_RDA1846(0x30,0x4026); // enable RX
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