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ISP Header - 10-way ATtiny High Voltage Serial Programming

 
 
 

This ISP Header is used to program the Atmel ATtiny 11/12/15 AVR microcontrollers using the 'High Voltage Serial Programming' algorithm. This algorithm is the equivalent of 'off-board parallel programming' and involves applying a +12V Vpp voltage to the RESET pin of the target ATtiny device in order to enter 'Programming Mode'. 

 
 

Frequently Asked Questions (FAQ):

 
 
Equinox Programmer Compatability
ATtiny ISP Connections
ISP Header Connections
Device Support

Equinox Programmer Compatability
  • Epsilon5
  • PPM3-MK2

ATtiny ISP Connections

  • The ISP Header supports both High and Low Voltage Serial Programming of the ATtiny12 and ATtiny15.
  • The ATtiny11 is only programmable via the High Voltage Serial Programming algorithm.
  • The ATtiny12 supports both High and Low Voltage Serial Programming algorithms using exactly the same connections to the target device.
  • The ATtiny15 supports both High and Low Voltage Serial Programming algorithms but requires the 'SCI' signal to be routed to pin 3 instead of pin to for the High Voltage algorithm.

ISP Header Connections

The table below details the pin-out connections of this header

 

Pin

No

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

PROG_SPARE

-

No Connect

Spare Programmer I/O pin

This pin is currently a I/O spare pin which is not used during SPI programming. In order to use this pin, the pin state must be setup in the EQTools tab

3

PROG_TSCK2

O

XTAL1

SCK2 Clock Output

This output pin is used to supply an external clock signal (SCK2) to the target microcontroller

4

PROG_SDI

O

SDI

Serial Data Input

This is the serial data output pin from the programmer. This pin should be connected to the Serial Data Input (SDI) pin on the Target Microcontroller

5

N/C

-

N/C

Not connected

6

PROG_SII

O

SII

SII (Serial Instruction Input)

This is the serial data input pin to the programmer from the Target Device. This pin should be connected to the SII pin on the Target Microcontroller

7

PROG_GND

P

GROUND

Ground Connection

Common ground connection between PROGRAMMER and Target System

8

PROG_SDO

I

SDO

SDO (Serial Data Output)

This is the serial data output signal from the Target Device to the programmer. It is an INPUT pin to the programmer

9

PROG_GND

P

GROUND

Ground Connection

Common ground connection between PROGRAMMER and Target System

10

PROG_RESET/VPP

O

RESET

Target RESET control pin

This pin controls the Target Device RESET pin. A +12.0V Vpp voltage will be applied to this pin during programming.

 

WARNING!

During ‘High Voltage Serial Programming’ of the Atmel ATtiny11/12/15 microcontrollers, a +12V Vpp voltage is generated by the programmer on this pin

 

Key

O - Output from programmer to Target Device

I - Input to programmer from Target Device

P - Passive eg. GROUND and power rails

N/C - Not connected

 

 
 

Device Support (by family)

 
 
This product supports devices from the families listed below:
 
Atmel Corporation:
  • ATtiny AVR - FLASH Microcontroller Family

 

Device Support (by manufacturer / programming algorithm)

 
 

Atmel Corporation
 
HVISP - High Voltage Serial Programming Algorithm:
ATtiny AVR - FLASH Microcontroller Family:
ATtiny11, ATtiny12, ATtiny15L

For further information about related products, please see the Supported ISP Headers.





 
 
Supported ISP Headers
ISP Header OVERVIEW >>
 
 
Device Support
Device Support List
 
 
Associated Products View All
Cables
Spare 10-way In-System Programming (ISP) Cable for Equinox Programmers (200mm) >>
Spare 6-way In-System Programming (ISP) Cable for Equinox Programmers (200mm) >>

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