Reset
3B FA 13 00 00 81 31 FE 45 4A 43 4F 50 34 31 56 32 32 31 96
复位应答 ATR
TS( The Initial character ) = 3B
--表示正向约定，高电平为1，低电平为0，传输时先传输LSB，最后传输MSB
T0( The Format character ) = FA
--表示接口字符的个数和历史字节的数量
----低4位有几个bit为1，则表示后续有几个历史字符(Historical bytes)
----高4位 = f( 1 1 1 1 )表示后续字符中存在TA1 TB1 TC1 TD1 --------------------( TA1, TB1, TC1, TA2, TB2 是全局接口字符，TC2是专用接口字符 )
TA1 = 13
--表示有增强的波特率，公式 3571200 / ( Fi / Di )
--------其中Fi由TA1的高4位(F)查表得出，Di由TA1的低4位(D)查表得出
----F = 01 ，查下表，则Fi = 372
+-------------+--------+--------+--------+--------+--------+--------+--------+--------+
| F | 0000 | 0001 | 0010 | 0011 | 0100 | 0101 | 0110 | 0111 |
+-------------+--------+--------+--------+--------+--------+--------+--------+--------+
| Fi | 372 | 372 | 558 | 744 | 1116 | 1488 | 1860 | RFU |
+-------------+--------+--------+--------+--------+--------+--------+--------+--------+
| 最高时钟MHZ | 4 | 5 | 6 | 8 | 12 | 16 | 20 | -- |
+-------------+--------+--------+--------+--------+--------+--------+--------+--------+
| F | 1000 | 1001 | 1010 | 1011 | 1100 | 1101 | 1110 | 1111 |
+-------------+--------+--------+--------+--------+--------+--------+--------+--------+
| Fi | RFU | 512 | 768 | 1024 | 1536 | 2048 | RFU | RFU |
+-------------+--------+--------+--------+--------+--------+--------+--------+--------+
| 最高时钟MHZ | -- | 5 | 7.5 | 10 | 15 | 20 | -- | -- |
+-------------+--------+--------+--------+--------+--------+--------+--------+--------+
----D = 03 ，查下表，则Di = 4
+-------------+--------+--------+--------+--------+--------+--------+--------+--------+
| D | 0000 | 0001 | 0010 | 0011 | 0100 | 0101 | 0110 | 0111 |
+-------------+--------+--------+--------+--------+--------+--------+--------+--------+
| Di | RFU | 1 | 2 | 4 | 8 | 16 | 1860 | RFU |
+-------------+--------+--------+--------+--------+--------+--------+--------+--------+
| D | 1000 | 1001 | 1010 | 1011 | 1100 | 1101 | 1110 | 1111 |
+-------------+--------+--------+--------+--------+--------+--------+--------+--------+
| Di | RFU | 512 | 768 | 1024 | 1536 | 2048 | RFU | RFU |
+-------------+--------+--------+--------+--------+--------+--------+--------+--------+
--------实际波特率为 38400
TB1 = 00
----表示编程电流 I /电压 P，高2位表示电流I，低6位表示电压P
----高2位 = 00 ，则编程电流 I 如下
+-------+--------+--------+--------+--------+
| 高2位 | 00 | 01 | 10 | 11 |
+-------+--------+--------+--------+--------+
| 电流I | 25 | 50 | RFU | RFU |
+-------+--------+--------+--------+--------+
----低6位 = 00 ，则编程 P 电压为0
TC1 = 00
----额外保护时间N = 0
TD1 = 81
----通讯协议 T = 1
--------------------
没有TA2
没有TB2
没有TC2
TD2 = 31
--------------------
TA3 = FE
TB3 = 45
没有TC3
没有TD3
4A 43 4F 50 34 31 56 32 32 31
----是历史字节
TCK ( XOR T0 - TCK ) = 96 校验成功