TI中文支持网您好，我们目前遇到的问题如下：
两片BQ76PL455级联无法读取到第二片的地址，第一片可以读到。也曾怀疑是硬件菊花链问题，但是我们广播关断两片BQ76PL455均可关断，说明数据是能够传递到第二片的，所以考虑是不是软件上有问题，麻烦您指点一下，谢谢。如下是参考TI软件参考手册写的代码，
Write_Broadcast(0xF2,0x10,0x10E0,2); //Fully Enable Differential Interfaces and Select Auto-Addressing Mode
Write_Broadcast(0xF1,0x0E,0x10,1); //Configure the bq76PL455A-Q1 device to use auto-addressing to select address
Write_Broadcast(0xF1,0x0C,0x08,1); //Configure the bq76PL455A-Q1 device to enter auto-address mode
Write_Broadcast(0xF1,0x0A,0x00,1);
Write_Broadcast(0xF1,0x0A,0x01,1);
Write_Reg(0x81,0x00,0x0A,0x00,1);
UART_receive_array(4);
Alarm_led1_on();
if(Receive_Buffer[1] == 0x00)
{
Alarm_led2_on();
}
else
{
Alarm_led2_off();
}
Write_Reg(0x81,0x01,0x0A,0x00,1);
UART_receive_array(4);
if(Receive_Buffer[1] == 0x01)
{
Alarm_led3_on();
}
else
{
Alarm_led3_off();
}
Star Xu：
1)Please check SW2 setting. For stack EVM, you should set SW2 to diff mode.
2)You can download sluuba7a_bq76PL455EVM and GUI User Guide, and see section-SW2 for more details.
3)If it still doesn't work, you can take the second board as base board to check the functionality of the board.
