1 Intro
2
Electrocardiogram (
Ecg
) Signals
The Electrocardiogram (
Ecg
)
•
Ecg
: electrical manifestation of heart activity recorded
from the body surface
•
monitoring of heart rate
The
Ecg
signal can be recorded fairly easily with surface
electrodes placed on the limbs and/or the chest, see pages
6
–
16
below.
Josef Goette
2
2009
4 Peripherals
4.17 Universal Serial Bus (USB)
The STM32F103RB embeds a full speed USB (12 Mbs) device peripheral compatible with the USB.
It has software configurable endpoint setting and suspend/resume support. The dedicated 48
MHz clock source is generated from the internal main PLL.
!
The CAN and USB share same pins PA11/EXT1-1 and PA12/EXT1-3, so you can’t use both CAN
and USB on same time with the standard pin mapping.
The implementation of the USB framework would go beyond the scope of this work and is there-
fore not covered.
48
STM32 Cortex-M3 Tutorial
