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```核心板引脚分配:
define_attribute {p:rst_n} {PAP_IO_DIRECTION} {INPUT}define_attribute {p:rst_n} {PAP_IO_LOC} {U12}define_attribute {p:rst_n} {PAP_IO_VCCIO} {3.3}define_attribute {p:rst_n} {PAP_IO_STANDARD} {LVTTL33}
define_attribute {p:sys_clk} {PAP_IO_DIRECTION} {INPUT}define_attribute {p:sys_clk} {PAP_IO_LOC} {B5}define_attribute {p:sys_clk} {PAP_IO_VCCIO} {3.3}define_attribute {p:sys_clk} {PAP_IO_STANDARD} {LVTTL33}
```
```SPI2_CS 48 R2_13_N V14SPI2_MOSI 50 R2_13_P U14SPI2_SCK 54 R2_2_N V13SPI2_MISO 56 R2_2_P U13
```
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