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In-System Programming
The increasing use and decreasing cost of programmable devices has caused their popularity to explode during recent years. The wide variety of available devices and programming methods requires acquiring and maintaining different types of in-system programmers.
ScanExpress Programmer was designed to replace the various types of in-system programmers with a single universal programmer with a scalable architecture for future expandability. ScanExpress Programmer is a universal in-circuit programming tool that can program and verify Flash memories, serial EEPROMs, CPLDs, FPGAs and other programmable logic devices. ScanExpress Programmer provides common programming functions including read, erase, blank check, program, verify, device ID check, and others. All of these functions can be performed while the target device is installed in-circuit.
Programming memories in-circuit is performed in development, production, and in the field. For development, software engineers can change code stored in memory devices during the software development. For production, in-circuit programming allows memory devices to remain on the shelf in an unprogrammed or blank state. These blank devices can then be installed at assembly and programmed in-circuit, thus reducing programming and tracking costs. In the field, support engineers and technicians can upgrade the product with new released firmware.
ScanExpress Programmer
ScanExpress Programmer offers several programming methods. Utilizing a high-performance Corelis controller with built-in support for JTAG, I2C, and SPI, and user friendly Windows-based software, ScanExpress Programmer can program components utilizing any of four individually licensed modules:
ScanExpress Programmer Modules
The Serial Peripheral Interface (SPI) Programmer module provides fast programming of any SPI memory device by controlling the SPI bus signals directly through a dedicated high-speed SPI interface available on select Corelis boundary-scan controllers.
The Inter-Integrated Circuit (I2C) Programmer module provides fast programming of I2C memory devices by controlling the I2C bus signals directly through the dedicated I2C interface available on supported Corelis boundary-scan controllers.
The Target Assisted Flash Programmer (TAFP) module utilizes the CPU on the target board to achieve the fastest programming performance of flash memory devices.
The JTAG Programmer module is the most flexible programmer and can program flash memory and serial EEPROM devices which are connected to boundary-scan components. The JTAG programmer can also program CPLDs and other devices that are JTAG in-system programmable, including those that are compliant with IEEE-1532.
ScanExpress Programmer GUI
SPI and I2C Programming
ScanExpress Programmer provides easy-to-use high-speed programming of SPI and I2C compatible serial EEPROMs and Flash memories. Users can program the devices in-system and at maximum programming speed - typically in several seconds (depending on the memory size).
The SPI and I2C GUIs allow Erasing, Programming, Verifying, and Reading the content of the EEPROM and Flash memory and saving it to a file on the computer. Standard Motorola S-Record file, Intel Hex file or a hex-text file formats are supported. The Read button allows immediate display of data from any user specified address block of the serial memory device.
JTAG Programming
The JTAG Programmer module allows in-system programming of flash memory and serial EEPROM devices that are connected to boundary-scan compatible devices. Figure 16 depicts a block diagram of this concept. The JTAG Programmer
module uses a special target flash description board file and a standard hex or binary data file to program the flash device. The Flash Programming Information file (.fpi), commonly called a "board file", provides the JTAG scan chain information and flash device parameters while the data file provides the flash content.
Board files can be generated by either of two Corelis companion products: ScanExpressTPG™ or ScanPlus Flash™ Generator which are sold separately. These companion tools use the netlist of the target board, BSDL files for all boundary-scan components and a special built-in flash library. Compiling these files with a flash model creates the board file which is then used by the JTAG Programmer module to program the flash device.
In addition to its extensive flash related features, the JTAG Programmer module can also program serial EEPROM and DiskOnChip® devices and execute various ISP programming files for CPLDs and FPGAs. The module contains a built-in SVF (Serial Vector Format) file parser which is capable of executing SVF files created by manufacturers’ tools to program their devices. The JTAG Programmer module also contains a JAM and STAPL language interpreter for executing ISP files of the vector-independent JAM and Bytecode formats.
ScanExpress Programmer JTAG In-System Programming
Target Assisted Flash Programming (TAFP)
The Target Assisted Flash Programmer takes advantage of the embedded CPU on the target board to shorten the Flash memory programming time and simplify the operation of Flash programming. With the Target Assisted Flash Programmer,
the user can perform many Flash programming functions such as erase, blank check, program, verify, obtain device ID, etc. All of these functions can be performed while the device is installed in-circuit.
The Target Assisted Flash Programmer has the ability to test the JTAG connection, test the RAM, check the Flash device ID, erase the Flash device, verify the erasure, download Flash data to RAM, program the Flash device, and verify the Flash data in one step.
The Target Assisted Flash Programmer relies on using a supported JTAG compatible CPU device on the target in order to accomplish the Flash programming operation. Please contact Corelis for CPU devices currently supported.
In-System JTAG Programming of CPLDs
ScanExpress allows users to program or reprogram Complex Programmable Devices (CPLDs) devices in-circuit after the devices have been soldered onto the printed circuit board.
Overview
As densities of CPLDs increase and package sizes decrease, it becomes difficult to program these devices out-of-circuit. For designs that include a JTAG IEEE Std 1149.1 interface, it is possible to program CPLDs in-circuit, while soldered in place.
Programming in-circuit is desirable in both development, production, and service environments. For development, engineers can change configuration information stored in the CPLDs during the development process. For production, in-circuit programming allows CPLDs to remain on the shelf in an unprogrammed or blank state. These blank devices can then be installed at assembly and programmed in-circuit, thus reducing programming and tracking costs. Following delivery of a product to a customer, a field-service technician, or even the customer, can download new configuration information without taking the system apart. That reduces the cost of "servicing" the equipment.
Key Features
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Programs multiple devices from various vendors in a single-chain
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Supports JAM, STAPL, J-Drive, SVF languages
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32-bit Windows 95/98/NT/2000/XP application
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Intuitive GUI makes it simple to use – even for those that have little or no experience with boundary-scan technology
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Powerful JTAG chain fault detection and diagnostics help isolate hardware problems quickly
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Based on Corelis’ line of high-performance boundary-scan controllers
Compatible with Corelis ScanExpress boundary-scan test systems. Supports the following devices and many more:
Altera |
All |
Cypress |
All |
Lattice |
All |
Vantis |
All |
Xilinx |
All |
By using ScanExpress for In-System Programming with its simple, but powerful GUI, a person with little or no experience with boundary-scan technology can quickly program CPLDs in-circuit. Based on Corelis’ line of high-performance boundary-scan controllers, CPLDs programming times are reduced.
Because ScanExpress In-System Programmer is based on Corelis’ line of high-performance boundary-scan controllers, it is compatible with the Corelis family of ScanExpress test systems. If the user wishes to add board interconnect test capabilities, he can purchase additional software for boundary-scan interconnect test pattern generation and test execution and then use the same boundary-scan controller both for In-System-Programming and manufacturing defects testing and diagnosis.
Various JTAG controllers are available to suit your needs:
 To
find out more download our online datasheets.
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