presto_en.pdf - 第85页

Page 85 7 PRESTO.DLL Library The presto.dll library h as been designed for working together with the PRESTO programmer. The implemen ted fu nctions allow you to set logical levels at different programmer' s p ins as…

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up_control.dll library

The up_control.dll enables user to control the UP software

using functions contained in the library. It contains basic

programming functions.

From the view of the user the UP software is running

invisibly.

There is more information concerning the library available

in a separate

document.

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PRESTO.DLL Library

The presto.dll library has been designed for working

together with the PRESTO programmer.

The implemented functions allow you to set logical levels

at different programmer's pins as needed or to read their

state. Various communication protocols can be created

thanks to this.

The function QsetPins() is provided for controlling all

pins that can work as an output, while the function

QGetPins() serves for reading pins working as an input.

The function QSendByte() allows you to quickly send an

SPI Byte to data and clock pins. If reading is needed at

the same time, use the QsendByte_OutIn() function.

In addition there are functions for setting the

programmer's characteristics, controlling the voltage or

reading the return values.

This library can be used with all revisions of the PRESTO

programmer regardless of the hardware version.

The functions implemented in the presto.dll library are

described in detail in a separate document devoted to

this library.

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JTAG PLAYER

JTAG PLAYER is a utility designed for programming

devices with the JTAG interface by means of PRESTO or

FORTE programmers.

This utility is not part of the UP software installation pack

but it can be downloaded separately from

https://

www.asix.tech/prg_jtag-svf-player_cz.html

JTAG PLAYER is localized only in English.

8.1

JTAG Device

Programming

Having started JTAG PLAYER, select your programmer in

Options ➙ Select Programmer.

If you cannot see your connected programmer in the

dialog window, check if the green ON-LINE LED on the

programmer is on. If so, make sure thatanother software

is not communicating with the programmer.

Program the device by choosing File ➙ Open&Process.

The file to be programmed must be in SVF/XSVF format.

For more information on the file format see

SVF File or

XSVF File.

If an error occurs during the programming process, check

the connection between the programmer and the

application. In addition, check the presence of a feeding

voltage.

Important warning

A power supply voltage from an external source must be

present during programming that utilizes the JTAG

interface. The programmer does not feed the application

in this case.

8.1.1 SVF File

SVF (Serial Vector Format) is a file used for describing

high-level operations on the IEEE1149.1 bus.

Serial Vector Format (.svf) is the recommended file

format for all the testing and programming except

for Xilinx CPLD XC9500. The Xilinx Serial Vector

Format (.xsvf) is recommended for Xilinx CPLD XC9500.

Examples of How to Create SVF

Files

This chapter presents methods of creating an SVF file for

different types of device.

Atmel AVR (e.g. ATmega128)

Programming

Generate an SVF file using the avrsvf.exe program

available at the ATMEL website in the “Tools & Software

of AVR 8-bit RISC MCUs” section.

Example:

avrsvf -datmega128 -s -e -ifmyfile.hex -pf -vf -

ovmyfile.svf -mp

This example shows how to create an SVF file from the

myfile.hex file. The final SVF file is then used by

jtagplay.exe for erasing, programming and verification.

Run avrsvf -h for more information.

The device must be in the reset state during

programming.