Operation
How to connect?
·
How to connect Emulation Adapter (video)
- short link: isystem.com/ea-intro
·
How to connect TASKING Hardware (video)
- short link: isystem.com/connect-hardware
Configuration
J1: Target reset configuration
Jumper J1 connects the Emulation Adapter reset line and the user target board reset line and is
populated by default.
Emulation Adapter features a Reset push button (SW1).
If having problems establishing the initial debug session with the Emulation Adapter, remove J1
and try again.
J2 and J3: Clock source configuration
Jumpers J2 and J3 select clock source for the emulation device.
Position 1-2 (default position) selects the crystal circuit oscillator
on the target.
Position 2-3 selects an external clock source (Q1 socket on the
Emulation Adapter).
The Emulation Adapter may not operate when target board’s crystal circuit is used as
the clock source. TIP: The crystal should be as close as possible to the microcontroller.
The crystal on the target board might not oscillate in conjunction with the Emulation
Adapter when the clock lines (TP21_2, TP21_3) between the crystal and the emulation
device on the Emulation Adapter become too long, thus affecting the impedance of
the crystal circuit.
Separately packed 20 MHz crystal can be used as a 20 MHz external clock (XOSC)
source to the emulation device. If a different clock frequency is required, insert appro-
priate crystal into the Q1 socket and replace C7 (default 10pF populated) and C8 (de-
fault 10pF populated) accordingly. Crystal socket Q1 is by default not populated (NP).