Equinox Systems ISP juno, Руководство пользователя

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ISPJUNO - Portable ISP Programmer - User Guide V0.84 – 17/04/20 55
3.4 Equinox 10-way Header (UART Boot Loader)
This connection method is suitable for interfacing the ISPJUNO programmer to a Target System
which features the following:
•
Equinox 10-way IDC ISP Header
•
An Atmel Wireless T89C51Rx2 / CC01 microcontroller
•
A Philips P89C51Rx2 or P89C66x microcontroller
•
The relevant connections for in-system programming via the Boot Loader.
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.
Please note:
The programmer interfaces to the Target System at TTL voltage levels. If the serial port to your Target
System is RS-232, you will need to convert the TTL levels from the programmer to RS-232 using an
external convertor.
Figure 3.4 – 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
Pin
No Programmer
Pin name Programmer
Input / Output Connect to
pin on
Target Device Description
1 PROG_VCC P TARGET_VCC Target Vcc
This pin should be connected to the Target
System Vcc. This voltage could be used to
power the programmer depending on the
settings of the power switch/jumper on the
programmer.
2 N/C - N/C Not connected
3 PROG_PSEN
O PSEN PSEN pin
This pin is driven LOW by the programmer
to enter ‘Boot Loader’ programming mode.
4 PROG_TXD O RXD Programmer RXD (Transmit) pin
The programmer transmits serial data on
this pin to the Target Device RXD
(Receive) pin.
5 N/C - N/C Not Connected
6 PROG_RXD I TXD Programmer RXD (Transmit) pin