USB Programming Tools

Cypress M8 Series

• Cypress Programming Support (Hi-Lo Programmer)
• Cypress Programming Support (Impulse3 Programmer)
• Third Party Programming Support
• Programming Adapter Cross Reference

EZ-USB Series

• Firmware Download from Host
• Firmware Upload from Serial EEPROM
• External Memory

Programming the Cypress M8 series

Cypress Hi-Lo Programmer

Cypress offers programming support with the easy-to-use Hi-Lo Programming System. Necessary components needed to program a CY7C6xxx M8 Series device are

A detailed cross reference is listed below.

Cypress has obsoleted Impulse3 programming support for the USB microcontroller family. The information below is for reference only:
The Impulse3 programmer supports Cypress's USB products. The required hardware includes an Impulse 3 base unit and a package specific adapter. The latest version of the Impulse3 programmer software is version 5.60-5.6000, released in April 1998. This release replaces all previous DOS and Windows versions of the Impulse3 programmer software.

Impulse3 v5.60-5.6000 [IMP3W_60.EXE, 1.88 Mbytes]

Note: Uncompress the above self-extracting executable file and follow the installation instructions in the text file readme.1st. The requirements for using this software are MS Windows 3.1x or MS Windows 95 and an Impulse3 Programmer.

• Low-Speed FAQ's
• Adapter Cross Reference

We currently have third party support for our One-Time-Programmable (OTP) USB devices. Please contact the programming vendors directly for further information. Many of our distributors also have programming centers that are capable of programming Cypress USB microcontrollers.

Programming the EZ-USB series

Due to the unique RAM architecture of the EZ-USB and EZ-USB FX Series, Cypress offers its customers three different options for downloading firmware into the device, giving developers the ultimate solution in design flexibility.

C-Compiler for EZ-USB series
Cypress includes an evaluation version of the 8051 Keil Software Tools in the EZ-USB Development Kits. The evaluation version of the C-Compiler lets the designer write 8051 microcontroller applications in C and still get the efficiency and speed of assembly language. Advanced features from Keil tools include the ability to single step through code. This makes it easy to detect errors, handle source level debugging, and set breakpoints. With the ability to debug code one line at a time and to quickly compile and one-step download new code, developers have a more efficient means to complete firmware faster than using emulators.

The Keil Software Toolset includes:

• 8051 Demonstration C-Compiler
• 8051 Demonstration Assembler
• 8051 Custom Debugger

The supplied Keil tools are fully functional, but are limited in object size to 4 Kbytes

How to Order: For the full version of the 8051 Keil Software Tools, please contact Keil Software directly.

Firmware Download from Host
ReNumeration can be used to download firmware from the host and still use a class driver. When the peripheral is first plugged in (or the system is powered up) the peripheral containing the Cypress device identifies itself as a custom device. The host loads a custom driver that downloads the class-specific firmware. Upon ReNumeration (a simulated disconnect-reconnect to the USB bus) the device identifies itself as a class device and the host loads the appropriate class driver. Using this approach allows for quick field updates by updating the custom driver that does the download. Cypress supplies this custom driver for Windows-based hosts with the development kit.

Firmware Upload from Serial EEPROM
This option offers the opportunity to avoid writing a custom host driver for firmware download by allowing firmware to be staged in an external EEPROM. The Cypress device can be configured to upload firmware from the external serial EEPROM when it is powered up.

External Memory
Another way to use USB class drivers is to store firmware in external memory. External EPROM, Flash, or other memory can be used. This option is limited to only a few devices in the EZ-USB and EZ-USB FX Series. Up to 64 Kbytes of memory can interface directly to our devices without external logic. Larger memory sizes can be support if programmable I/O pins and paging techniques are used.

Note 1: An SOIC-to-DIP flow-through adapter (p/n AS-28-28-03S-6-GANG) is available from Emulation Technologies.You can contact Emulation Technologies by calling 1-800-ADAPTER.

Note 2: A QSOP-to-DIP flow-through adapter (p/n 130-5304-06) is available from Adapters.com You can contact Adapters.com by calling 1-408-855-8527.

Additional Information

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