SPI片选
## SPI片选
```language
void xy_SPI_ChipSelect(
SPI_TypeDef SPIx,
SPIChipSel_TypeDef CS_Pin
)
```
## 参数说明
|参数|功能说明|
|-|-|-|
|SPIx|SPI编号|
|CS_Pin|片选引脚|
## SPI编号
|枚举值|
|-|-|-|
|SPI1 |
## 片选引脚
|枚举值|
|-|-|-|
|SPI_NSS_PIN_1 |
|SPI_NSS_PIN_2 |
|SPI_NSS_NONE |