Nuvoton
NuMaker ADC read gas sensor (MQ3)
Diff: README.md
- Revision:
- 4:50241a871e1d
- Parent:
- 3:2921ef74950b
--- a/README.md Mon Dec 12 19:39:11 2016 +0800 +++ b/README.md Thu Dec 15 10:56:27 2016 +0800 @@ -1,100 +1,24 @@ - -# Getting started with NuMaker-mbed-ADC0_MQ3 on mbed OS - -The code works on an mbed OS platform. It uses ADC0 to read sensor - -Please install [mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli). - -## Get the example application! - -Ontain the mbed-OS library from Windows command prompt - -git clone https://github.com/ARMmbed/mbed-os - - -From the command line of Git Bash, for example: - -``` -hg clone https://developer.mbed.org/teams/Nuvoton/code/NuMaker-mbed-ADC0_MQ3/ -cd NuMaker-mbed-ADC0_MQ3 - -``` - -Make shortcut for mbed-os library under the folder NuMaker-mbed-ADC0_MQ3 - -### Now compile - -Invoke `mbed compile` specifying the name of your platform and your favorite toolchain (`GCC_ARM`, `ARM`, `IAR`). For example, for the ARM Compiler 5: - -``` -mbed compile -m NUMAKER_PFM_NUC472 -t ARM -``` - -Your PC may take a few minutes to compile your code. At the end you should get the following result: - -``` -Link: NuMaker-mbed-ADC0_MQ3 -Elf2Bin: NuMaker-mbed-ADC0_MQ3 -+--------------+-------+-------+---------+ -| Module | .text | .data | .bss | -+--------------+-------+-------+---------+ -| Misc | 13333 | 32 | 1061844 | -| features/net | 162 | 16 | 16 | -| hal/common | 2531 | 28 | 148 | -| hal/targets | 6713 | 272 | 104 | -| rtos/rtos | 110 | 4 | 0 | -| rtos/rtx | 6484 | 92 | 8316 | -| Subtotals | 29333 | 444 | 1070428 | -+--------------+-------+-------+---------+ -Allocated Heap: unknown -Allocated Stack: unknown -Total Static RAM memory (data + bss): 1070872 bytes -Total RAM memory (data + bss + heap + stack): 1070872 bytes -Total Flash memory (text + data + misc): 29777 bytes -Image: .\BUILD\NUMAKER_PFM_NUC472\ARM\NuMaker-mbed-ADC0_MQ3.bin - -``` - -### Program your board - -1. Connect your mbed device to the computer over USB. -1. Copy the binary file to the mbed device . -1. Press the reset button to start the program. - -Please refer to the documents at the path https://github.com/OpenNuvoton/NuMaker_NuWicam_Samples/ - -## Export the project to Keil MDK and debug your application - -From the command line, run the following command: - -``` -mbed export -m NUMAKER_PFM_NUC472 -i uvision -``` - -To debug the application: - -1. Start uVision. -1. Import the uVision project generated earlier. -1. Compile your application and generate an `.axf` file. -1. Make sure uVision is configured to debug over CMSIS-DAP (From the Project menu > Options for Target '...' > Debug tab > Use CMSIS-DAP Debugger). -1. Set breakpoints and start a debug session. - - - -## Troubleshooting - -1. Make sure `mbed-cli` is working correctly and its version is greater than `0.8.9` - - ``` - mbed --version - ``` - - If not, you can update it easily: - - ``` - pip install mbed-cli --upgrade - ``` - -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. - - \ No newline at end of file +# Getting started with ADC on mbed OS + + +### Import NuMaker-mbed-ADC0_MQ3 from on-line IDE +1. Please choose Nuvoton NuMaker-PFM-XXX as your target platform. +2. Please press the left-up icon "New", then choose "NuMaker ADC read gas sensor (MQ3)" from the template list. +3. Your NuMaker-mbed-ADC0_MQ3 program is existed. + +#### Now compile +Please press compile icon. + +#### Burn Code & Execute +1. Connect the board NuMaker-PFM-XXX with your PC by USB cable, then there will be one "mbed" disk. +2. Copy the built binary file into "mbed" disk on you PC. +3. Press device's reset button and you could get the below log by uart console. UART baud is 9600 at default. +------------------------------------------------------------------------------- + ADC0 start reading... + ADC0 value= 0x 8f0, percentage= 0.098% + ADC0 value= 0x1711, percentage= 6.152% + : + : + +-------------------------------------------------------------------------- +If the percentage is over than 70.000%, LED will be on. otherwise LED will be off. \ No newline at end of file