Update documents (#999)

Fixed the mistake and updated the additional information

IoT.js-DCO-1.0-Signed-off-by: Hosung Kim [email protected]

Author: hs0225

docs/api/IoT.js-API-ADC.md

@@ -4,11 +4,11 @@ The following table shows ADC module APIs available for each platform.
 
 |  | Linux<br/>(Ubuntu) | Raspbian<br/>(Raspberry Pi) | NuttX<br/>(STM32F4-Discovery) |
 | :---: | :---: | :---: | :---: |
-| adc.open | O | O | O |
-| adcpin.read | O | O | O |
-| adcpin.readSync | O | O | O |
-| adcpin.close | O | O | O |
-| adcpin.closeSync | O | O | O |
+| adc.open | O | X | O |
+| adcpin.read | O | X | O |
+| adcpin.readSync | O | X | O |
+| adcpin.close | O | X | O |
+| adcpin.closeSync | O | X | O |
 
 
 ## Class: ADC

docs/build/Build-for-RPi2.md

@@ -115,7 +115,7 @@ This script gives you `build/arm-linux/release/iotjs/iotjs` or `build/arm-linux/
 Copy this binary with your favorite tool or `scp` like below.
 
 ``` bash
-scp build/arm-linux/release/iotjs/iotjs pi@(your RPi2 IP):/home/pi/.
+scp build/arm-linux/release/bin/iotjs pi@(your RPi2 IP):/home/pi/.
 ```
 
 Lastly, open a shell and run with your test program.

docs/targets/nuttx/stm32f4dis/README.md

@@ -130,6 +130,7 @@ Followings are the options to set:
 
 * For `i2c` module
   * Enable `System Type -> STM32 Peripheral Support -> I2C1`
+  * Enable `Device Drivers -> I2C Driver Support`
 
 #### 4. Build IoT.js for NuttX
 
@@ -151,8 +152,16 @@ Connect Mini-USB for power supply and connect Micro-USB for `NSH` console.
 
 To configure `stlink` utility for flashing, follow the instructions [here](https://github.com/texane/stlink#build-from-sources).
 
+To install,
+```bash
+# assuming you are in stlink folder
+$ cd stlink
+$ make
+```
+
 To flash,
 ```bash
 # assuming you are in nuttx folder
-$ sudo ../stlink/build/st-flash write nuttx.bin 0x8000000
+$ cd nuttx
+$ sudo ../stlink/build/Release/st-flash write nuttx.bin 0x8000000
 ```