30 lines
1.2 KiB
Text
30 lines
1.2 KiB
Text
|
Description of example project
|
||
|
|
==============================
|
||
|
|
This is an example depicting usage of the ADC driver.
|
||
|
|
The ADC driver is used to configure various functional blocks of the
|
||
|
|
peripheral, setting up of a single entry queue and converting the lone
|
||
|
|
entry by means of a software generated queue conversion request periodically
|
||
|
|
in the SysTick handler. The SysTick timer is configured to fire every 10ms.
|
||
|
|
The results are send via UART and can be visualize in a PC using a terminal program
|
||
|
|
|
||
|
|
Hardware Setup
|
||
|
|
===============
|
||
|
|
XMC4700/XMC4800 Relax Kit
|
||
|
|
IO Pin : 14.7
|
||
|
|
|
||
|
|
How to test the application
|
||
|
|
============================
|
||
|
|
a. Import the project
|
||
|
|
b. Compile and flash the application onto the device
|
||
|
|
c. Add g_num_interrupts to the watch window
|
||
|
|
d. Run the application.
|
||
|
|
e. Watch g_num_interrupts steadily increment
|
||
|
|
f. Attach a variable voltage source at P14_1 and observe the voltage in the terminal.
|
||
|
|
|
||
|
|
How to modify the application
|
||
|
|
==============================
|
||
|
|
a. To choose a different pin, identify the corresponding group and Channel. Update the macros
|
||
|
|
CHANNEL_NUMBER, VADC_GROUP_PTR and VADC_GROUP_ID accordingly.
|
||
|
|
|
||
|
|
b. To test on a board which has a different crystal frequency, simply update the macro CRYSTAL_FREQUENCY
|
||
|
|
to the correct value.
|