update en/device-dev/driver/driver-platform-spi-des.md.

Signed-off-by: Nking_he <6384784@qq.com>

en/device-dev/driver/driver-platform-spi-des.md

@@ -2,21 +2,21 @@
 
 ## Overview<a name="section193356154511"></a>
 
--   Serial Peripheral Interface \(SPI\) is a serial bus specification used for high-speed, full-duplex, and synchronous communication.
--   SPI is developed by Motorola. It is commonly used for communication with flash memory, real-time clocks, sensors, and analog-to-digital \(A/D\) converters.
--   SPI works in controller/device mode. Generally, there is one SPI controller that controls one or more SPI devices. They are connected via four wires:
-    -   SCLK: clock signals output from the SPI controller
-    -   MOSI: data output from the SPI controller and input into an SPI device
-    -   MISO: data output from an SPI device and input into the SPI controller
-    -   CS: signals enabled by an SPI device and controlled by the SPI controller
+Serial Peripheral Interface \(SPI\) is a serial bus specification used for high-speed, full-duplex, and synchronous communication.
+SPI is developed by Motorola. It is commonly used for communication with flash memory, real-time clocks, sensors, and analog-to-digital \(A/D\) converters.
+SPI works in controller/device mode. Generally, there is one SPI controller that controls one or more SPI devices. They are connected via four wires:
+-   SCLK: clock signals output from the SPI controller
+-   MOSI: data output from the SPI controller and input into an SPI device
+-   MISO: data output from an SPI device and input into the SPI controller
+-   CS: signals enabled by an SPI device and controlled by the SPI controller
 
 
--   [Figure 1](#fig89085710359)  shows the connection between one SPI controller and two SPI devices \(device A and device B\). In this figure, device A and device B share three pins \(SCLK, MISO, and MOSI\) of the controller. CS0 of device A and CS1 of device B are connected to CS0 and CS1 of the controller, respectively.
+[Figure 1](#fig89085710359)  shows the connection between one SPI controller and two SPI devices \(device A and device B\). In this figure, device A and device B share three pins \(SCLK, MISO, and MOSI\) of the controller. CS0 of device A and CS1 of device B are connected to CS0 and CS1 of the controller, respectively.
 
 **Figure  1** SPI controller/device connection<a name="fig89085710359"></a>  
 ![](figures/spi-controller-device-connection.png "spi-controller-device-connection")
 
--   SPI communication is usually initiated by the SPI controller and is operated as follows:
+SPI communication is usually initiated by the SPI controller and is operated as follows:
 
 1.  A single SPI device is selected at a time via the CS to communicate with the SPI controller.
 2.  Clock signals are provided for the selected SPI device via the SCLK.
@@ -36,7 +36,7 @@
     -   Obtaining and setting SPI device configuration parameters.
 
 
->![](../public_sys-resources/icon-note.gif) **NOTE:** 
+>![](../public_sys-resources/icon-note.gif) **NOTE**<br>
 >Currently, these functions are only applicable in the communication initiated by the SPI controller.
 
 ## Available APIs<a name="section1325964832615"></a>
@@ -546,4 +546,3 @@ err:
     SpiClose(spiHandle);
 }
 ```
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-