Two components developed for this purpose greatly simplify the process of calibrating the ILO and IMO with respect to a reference time base.
Introduction
PSoC® 3 and PSoC 5LP (hereafter referred to as PSoC) have a very powerful clocking system. This system offers the flexibility and performance to suit the needs of most embedded applications. It is comprised of clock sources and a clock distribution network. The clock sources available to you are: the internal main oscillator (IMO), external crystal oscillators (ECO) and internal low-speed oscillator (ILO). This application note describes the IMO and ILO as well a method to improve their accuracy through run-time calibration.
The following table indicates the PSoC devices, PSoC Creator versions, compilers, and development kits that will work with this application note project:
|
Project |
Device
|
PSoC Creator
Version |
Development Kit
CY8CKIT-xxx |
Compiler
|
||||||||
|
Architecture
|
Silicon
Revision |
V2.2
or higher |
V2.1
|
001
DVK |
Keil
|
GCC
|
RVDS
|
MDK
|
||||
|
AN80248.zip |
Prod
|
YES
|
NO
|
YES
|
YES
|
NO
|
YES
|
N/A
|
N/A
|
N/A
|
||
|
Prod
|
YES
|
NO
|
YES
|
YES
|
NO
|
N/A
|
YES
|
YES
|
YES
|
|||
|
Prod
|
YES
|
NO
|
YES
|
YES
|
NO
|
N/A
|
YES
|
YES
|
YES
|
|||
Notes:
- Click on AN77835 - PSoC® 3 to PSoC 5LP Migration Guide to learn differences between PSoC 3 and PSoC 5LP.
- For PSoC 5 project and related document, please download file AN80248_Archive.zip.
Projects associated with this application note can be downloaded from the 'Related Files' section below. For your convenience, we have provided projects that are compatible with the two most recent versions of PSoC Creator:
- AN80248.zip is used with PSoC Creator 2.2
- AN80248_Archive.zip is used with PSoC Creator 2.1/2.0
The project’s default settings may not be compatible with your device or kit, and you may need to change your project settings. For more information, see:
