Equinox 10-Way Header - Generic Pin-Out - Equinox Systems ISP juno User Manual

5.6 Equinox 10-way Header - Generic pin-out

This connection method is suitable for interfacing the programmer to a Target System which features
the following:
•
Equinox 10-way IDC ISP Header
•
An Atmel device which features the 3-wire SPI + RESET Programming Interface
This is the favoured ISP connector as it allows the following additional functions:
•
Application of +12V Vpp for ATtiny High Voltage Serial Programming
•
'SCK2 Oscillator' for clocking devices during programming
•
Spare I/O pin which could be used for 'SPI SLAVE SELECT' or to drive an LED on the Target
System
To implement this connection, simply plug the 10-way ISP cable into the Programmer J6 header and
plug the other end of the cable into the matching header on the Target System.
Pin Programmer
No Pin name
1 TARGET_VCC
2 BUFFER_ENABLE
3 Programmer I/O4
4 Programmer I/O1
5 RELAY ENABLE
6 Programmer I/O2
7 + 9 PROG_GND
40
Figure 4.7.1 – Equinox 10-way IDC Header (J8) viewed from above
Warning!
1. It is possible for +12V to be output on pin 10 of this
connector when programming ATtiny11/12/15 devices.
2. Connecting to the wrong ISP Header may cause
catastrophic damage to the Programmer & Target
System
Connect to pin on
I/O
Target System
P TARGET_VCC
Connect to Clock Buffer
IO5
circuit Buffer Enable pin
•
IO4 JTAG – TMS
•
JTAG – TDI
•
IO1 SPI – MOSI
•
UART - TXD
Controlled output used to
O
switch external relay
•
JTAG – TDO
•
SPI – MISO
IO2
•
UART – RXD
•
PDI_RXD
P Signal GROUND (0V)
ISPJUNO - Portable ISP Programmer - User Guide V0.84 – 17/04/20
Notes
Target VCC
This pin should be connected to the
Target System Vcc.
This pin is used to enable the
output of a remote Clock Buffer.
This pin is used for JTAG Target
Systems only.
This pin can be used for JTAG, SPI
or UART Target Systems.
Direct programmer output with 470
ohm resistor in series. Requires
external transistor to drive relay.
This pin can be used for JTAG,
SPI, UART, XMEGA PDI and
ATtiny TPI Target Systems.
Signal Ground Connection (1)
0V to which the programmer JTAG,