ATEVK527 Atmel, ATEVK527 Datasheet - Page 11

• Manufacturer Part Number: ATEVK527
• Description: KIT EVAL PWM AVR USB 4 SERIES
• Manufacturer: Atmel
• Series: AVR®r

Specifications of ATEVK527

• Main Purpose: Power Management, Battery Charger
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ATmega16U4, ATmega32U4
• Primary Attributes: 1 Cell- Li-Ion
• Secondary Attributes: Graphical User Interface, USB Interface
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4 Battery Charger Software
4.1 Scheduler
4.2 List of files
7801A-AVR-06/08
A scheduler is implemented to call indefinitely defined tasks. Before starting this
infinite loop, init functions are called.
There are three tasks. Each task is called after the end of the previous one (no pre-
emption).
Figure 4-1. Scheduler
The firmware is written in C language using IAR Systems Embedded Workbench®,
version 5.10. Since the firmware has been written entirely in C, it should not be a
difficult task to port it to other AVR C-compilers. Some compiler specific details may,
however, need to be rewritten.
In the table below are listed the files that are relevant to the compiler project.
Table 4-1. Project files for CDC application (see IAR EW workspace file )
File
cdc_task.c
cdc_task.h
main.c
main.h
power_drv.c
power_drv.h
scheduler.c
scheduler.h
start_boot.c
start_boot.h
time.c
time.h
CDC_task_init()
Scheduler task:
Usb_task_init()
Batt_task_init()
Scheduler Init:
CDC_task()
Usb_task()
Batt_task()
Type
C source code
Header file
C source code
Header file
C source code
Header file
C source code
Header file
C source code
Header file
C source code
Header file
Note
CDC task and CDC task init functions
Main program / Program entry point
Power management low level driver
Scheduler routines
Boot functions
Functions for timing
AVR146
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