EPSILON5 MKIV - USB Programmer - User Guide V1.05 19/09/12
23
18 Target JTAG
Frequency
The programmer supports a user-defined JTAG frequency:
•
SLOW: 0 – 833 kHz
•
FAST: 1.266 MHz
19 Target UART Speed
•
This is the Communications Speed (BAUD rate) from the
programmer to the Target Device when communicating
via a Boot Loader.
•
The BAUD rate is configurable from 1,200 to 115 kBaud.
•
This setting is completely independent from the BAUD
rate settings for the PC communicating with the
programmer.
20 ISP Headers
The programmer supports all the popular ISP Header as
standard:
•
Atmel 10-way (SPI)
•
Atmel 6-way (SPI)
•
Atmel 10-way (JTAG)
•
Equinox 10-way (SPI+UART)
It is also possible to program ARM microcontrollers with either
the ARM 20-way or 10-way connector using a separate plug-in
cable assembly.
4.0
21 Frequency generator
output (SCK2)
The EPSILON5-MK4 is capable of outputting a continuous
square wave at various frequencies on the programmer SCK2
pin.
The following pre-set frequencies can be selected via the
EQTools Programming Project:
1.8432 MHz, 921.6 kHz, 614.4 kHz, 460.9 kHz, 386.6 kHz, 307.6
kHz, 230.4 kHz,167.6 kHz, 102.4 kHz, 51.2 kHz
This clock frequency could be used for the following purposes:
•
To toggle the STROBE pin on a Watchdog Timer IC to
stop the IC from timing out during the In-System
Programming operation.
•
To provide a clock to an Atmel ATmega microcontroller to
resurrect a device which has an incorrectly configured
Internal Oscillator.
Please refer to the ‘EQTools – Getting Started Guide’ for full
details of setting up the SCK2 oscillator.
22 Target Run
The programmer is capable of automatically running firmware
which has been programmed into a Target Device and waiting
until the SPI MISO pin is asserted by the Target Device.
23 Pre-Programming
State Machine
The programmer has 5-state ‘Pre-programming State Machine’
which allows the I/O lines of the programmer to be sequenced in
order to place the Target Device into Serial Programming Mode.
24 PC Connection
USB Port (mini USB connector)
•
Mini-USB connector
•
Connects to spare PC USB port
1.15
