Hexiwear / Mbed OS Hexi_Pressure_Baro_Temp_Example

Barometric pressure and temperature sensing program example for Hexiwear

Dependencies:   MPL3115A2

Fork of Hexi_barom_alt_temp_app by Mac Lobdell

This project demonstrates the use of the MPL3115A2 pressure and temperature sensor embedded in hexiwear

Open a Hyperterminal tool on your computer and connect it to the "mbed Serial port (COMxx)" with Baud rate "9600bps"

Compile the project and copy the binary "Hexi_Pressure_Baro_Temp_Example_HEXIWEAR.bin" in the DAP-LINK drive from your computer file explorer Press the K64F-RESET button on the docking station to start the program on your board

Message "Begin Data Acquisition from MPL3115A2 sensor..." will appear in the Hyperterminal window
Then every 500ms the value of the pressure and the temperature will be displayed in the Hyperterminal window and the LED will blink Green

README.md@1:4cd4a1bd710b, 2016-08-15 (annotated)

Committer:
GregC
Date:
Mon Aug 15 23:45:15 2016 +0000
Revision:
1:4cd4a1bd710b
Parent:
0:97dd02e37c94 
Barometric pressure and temperature sensing program example for Hexiwear

Who changed what in which revision?

UserRevisionLine numberNew contents of line
maclobdell 0:97dd02e37c94 1 # Getting started with Blinky on mbed OS
maclobdell 0:97dd02e37c94 2
maclobdell 0:97dd02e37c94 3 This is a very simple guide, reviewing the steps required to get Blinky working on an mbed OS platform.
maclobdell 0:97dd02e37c94 4
maclobdell 0:97dd02e37c94 5 Please install [mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
maclobdell 0:97dd02e37c94 6
maclobdell 0:97dd02e37c94 7 ## Get the example application!
maclobdell 0:97dd02e37c94 8
maclobdell 0:97dd02e37c94 9 From the command line, import the example:
maclobdell 0:97dd02e37c94 10
maclobdell 0:97dd02e37c94 11 ```
maclobdell 0:97dd02e37c94 12 mbed import mbed-os-example-blinky
maclobdell 0:97dd02e37c94 13 cd mbed-os-example-blinky
maclobdell 0:97dd02e37c94 14 ```
maclobdell 0:97dd02e37c94 15
maclobdell 0:97dd02e37c94 16 ### Now compile
maclobdell 0:97dd02e37c94 17
maclobdell 0:97dd02e37c94 18 Invoke `mbed compile` specifying the name of your platform and your favorite toolchain (`GCC_ARM`, `ARM`, `IAR`). For example, for the ARM Compiler 5:
maclobdell 0:97dd02e37c94 19
maclobdell 0:97dd02e37c94 20 ```
maclobdell 0:97dd02e37c94 21 mbed compile -m K64F -t ARM
maclobdell 0:97dd02e37c94 22 ```
maclobdell 0:97dd02e37c94 23
maclobdell 0:97dd02e37c94 24 Your PC may take a few minutes to compile your code. At the end you should get the following result:
maclobdell 0:97dd02e37c94 25
maclobdell 0:97dd02e37c94 26 ```
maclobdell 0:97dd02e37c94 27 [snip]
maclobdell 0:97dd02e37c94 28 +----------------------------+-------+-------+------+
maclobdell 0:97dd02e37c94 29 | Module | .text | .data | .bss |
maclobdell 0:97dd02e37c94 30 +----------------------------+-------+-------+------+
maclobdell 0:97dd02e37c94 31 | Misc | 13939 | 24 | 1372 |
maclobdell 0:97dd02e37c94 32 | core/hal | 16993 | 96 | 296 |
maclobdell 0:97dd02e37c94 33 | core/rtos | 7384 | 92 | 4204 |
maclobdell 0:97dd02e37c94 34 | features/FEATURE_IPV4 | 80 | 0 | 176 |
maclobdell 0:97dd02e37c94 35 | frameworks/greentea-client | 1830 | 60 | 44 |
maclobdell 0:97dd02e37c94 36 | frameworks/utest | 2392 | 512 | 292 |
maclobdell 0:97dd02e37c94 37 | Subtotals | 42618 | 784 | 6384 |
maclobdell 0:97dd02e37c94 38 +----------------------------+-------+-------+------+
maclobdell 0:97dd02e37c94 39 Allocated Heap: unknown
maclobdell 0:97dd02e37c94 40 Allocated Stack: unknown
maclobdell 0:97dd02e37c94 41 Total Static RAM memory (data + bss): 7168 bytes
maclobdell 0:97dd02e37c94 42 Total RAM memory (data + bss + heap + stack): 7168 bytes
maclobdell 0:97dd02e37c94 43 Total Flash memory (text + data + misc): 43402 bytes
maclobdell 0:97dd02e37c94 44 Image: .\.build\K64F\ARM\mbed-os-example-blinky.bin
maclobdell 0:97dd02e37c94 45 ```
maclobdell 0:97dd02e37c94 46
maclobdell 0:97dd02e37c94 47 ### Program your board
maclobdell 0:97dd02e37c94 48
maclobdell 0:97dd02e37c94 49 1. Connect your mbed device to the computer over USB.
maclobdell 0:97dd02e37c94 50 1. Copy the binary file to the mbed device .
maclobdell 0:97dd02e37c94 51 1. Press the reset button to start the program.
maclobdell 0:97dd02e37c94 52
maclobdell 0:97dd02e37c94 53 You should see the LED of your platform turning on and off.
maclobdell 0:97dd02e37c94 54
maclobdell 0:97dd02e37c94 55 Congratulations if you managed to complete this test!
maclobdell 0:97dd02e37c94 56
maclobdell 0:97dd02e37c94 57 ## Export the project to Keil MDK and debug your application
maclobdell 0:97dd02e37c94 58
maclobdell 0:97dd02e37c94 59 From the command line, run the following command:
maclobdell 0:97dd02e37c94 60
maclobdell 0:97dd02e37c94 61 ```
maclobdell 0:97dd02e37c94 62 mbed export -m K64F -i uvision
maclobdell 0:97dd02e37c94 63 ```
maclobdell 0:97dd02e37c94 64
maclobdell 0:97dd02e37c94 65 You should see the following output:
maclobdell 0:97dd02e37c94 66
maclobdell 0:97dd02e37c94 67 ```
maclobdell 0:97dd02e37c94 68 Successful exports:
maclobdell 0:97dd02e37c94 69 * K64F::uvision .\projectfiles\uvision_K64F\Unnamed_Project
maclobdell 0:97dd02e37c94 70 ```
maclobdell 0:97dd02e37c94 71
maclobdell 0:97dd02e37c94 72 To debug the application:
maclobdell 0:97dd02e37c94 73
maclobdell 0:97dd02e37c94 74 1. Start uVision.
maclobdell 0:97dd02e37c94 75 1. Import the uVision project generated earlier.
maclobdell 0:97dd02e37c94 76 1. Compile your application and generate an `.axf` file.
maclobdell 0:97dd02e37c94 77 1. Make sure uVision is configured to debug over CMSIS-DAP (From the Project menu > Options for Target '...' > Debug tab > Use CMSIS-DAP Debugger).
maclobdell 0:97dd02e37c94 78 1. Set breakpoints and start a debug session.
maclobdell 0:97dd02e37c94 79
maclobdell 0:97dd02e37c94 80 ![Image of uVision](img/uvision.png)
maclobdell 0:97dd02e37c94 81
maclobdell 0:97dd02e37c94 82 ## Troubleshooting
maclobdell 0:97dd02e37c94 83
maclobdell 0:97dd02e37c94 84 1. Make sure `mbed-cli` is working correctly and its version is greater than `0.8.9`
maclobdell 0:97dd02e37c94 85
maclobdell 0:97dd02e37c94 86 ```
maclobdell 0:97dd02e37c94 87 mbed --version
maclobdell 0:97dd02e37c94 88 ```
maclobdell 0:97dd02e37c94 89
maclobdell 0:97dd02e37c94 90 If not, you can update it easily:
maclobdell 0:97dd02e37c94 91
maclobdell 0:97dd02e37c94 92 ```
maclobdell 0:97dd02e37c94 93 pip install mbed-cli --upgrade
maclobdell 0:97dd02e37c94 94 ```
maclobdell 0:97dd02e37c94 95
maclobdell 0:97dd02e37c94 96 2. If using Keil MDK, make sure you have a license installed. [MDK-Lite](http://www.keil.com/arm/mdk.asp) has a 32KB restriction on code size.