The test speed is always related to a pin or a pin group and depends on the intended use in the future application.
The Standard level uses Boundary Scan cells according to IEEE 1149.1 for testing.
The test speed is far below the actual board function.
The classic connection test is one of the main tasks of this level. But also the addressing of components, e.g. for reading out a chip ID or a sensor value, can be realised at this access level.
In programming, only low data rates are usually achieved (ranging from bytes/s to kBytes/s).
- verification of JTAG Infrastructure
- detection of shorts between Boundar Scan Nets
- detection of shorts between IEEE 1149.6 Nets
- detection of open pins
- detection of missing inline resistors
- detection of missing or wrong pull resistors
- testing beyond multipanel PCBs
- use of additional virtual boundary scan I/Os (GPIOs, Flying Probes ...)
The programming speed depends on the amount of data to be transmitted and is dependent on several factors. Without knowledge of the application, precise statements are therefore usually not possible. Information on speed is always subjective and depends on the application.
The standard Boundary Scan method according to IEEE 1149.1 can simply control complex components such as FPGAs, processors, controller and CPLDs. Detailed hardware knowledge is not required.
The ChipVORX technology uses the FPGA logic for the test. With the help of universal FPGA models, you can access standard functions without further adjustments. This allows classic boundary scan tests and programming to be significantly accelerated. Untypical tests such as frequency measurement can also berealised.
A processor-specific model brings the IC into debug mode. After that, internal functions (registers, memory areas, complex controllers) are addressed to perform analogue measurements, at-speed Flash programming or even at-speed RAM tests. Both the JTAG port and other debug interfaces can be used for this purpose.
The basis of all testing and programming is the hardware architecture SCANFLEX II to control the UUT .
The cost-efficient controller SCANBOOSTER II is especially recommended for entry-level users. It is best suited for standard applications with lower performance requirements.