AN1154 STMicroelectronics, AN1154 Datasheet - Page 42

• Manufacturer Part Number: AN1154
• Description: 8031-PSD DESIGN TUTORIAL
• Manufacturer: STMicroelectronics

AN1154 - APPLICATION NOTE
Figure 43. Auto-select and Loop Test
Auto Select means that PSDsoft will automatically detect to which PC parallel port your FlashLink cable
is connected (even if the other end of the FlashLink cable is not connected to the target system). Just click
OK, and the FlashLink cable will be detected. Optionally, you can return to the Hardware Setup menu to
run a Loop Test on the FlashLink cable. This is a hardware integrity test that requires the loop-back cable
(that is provided) to be installed on the FlashLink cable. (Please see the FlashLink installation manual).
3. Now connect the FlashLink cable to your target system, and power-on the system. The target system
4. Set up your JTAG chain (as described in the next section)
5. Once your JTAG chain has been set up, program your device while it is in-system. (Programming is
Setting up a JTAG Chain
This section takes you step-by-step through the creation of a JTAG Chain File. Since this procedure has
not been finalized, please check our web site (www.st.com) for updates to this document.
The following rules apply for setting up a JTAG chain:
Please refer to Application Note AN1153 for information in these areas:
– JTAG Spec Compliance
– Programming Support
– Program/Erase Flow Control
– SVF/BSDL file information
– Enhanced ISP functions
– Multiplexed JTAG pin functions
– Dedicated JTAG pin functions
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needs to be powered up since the FlashLink circuitry draws its power from the target.
accomplished in the “JTAG Chain Setup” window. This is described in the next section.)
A JTAG chain of one to or more devices must be defined.
All JTAG compatible devices that are connected to the JTAG bus, including the M88 FLASH+PSD and
non-PSD devices from other vendors compose a JTAG chain.
Non-PSD devices that are part of the JTAG chain will be placed, automatically, in bypass mode.
The length of the instruction register, along with a name and device ID must be entered for each non-
PSD device. (In future versions of PSDsoft, you will be able to load this information automatically with
a BSDL file.)
Before programming the PSD device(s), the user must have a valid .obj file for each PSD device in the
chain
Additionally, a Serial Vector Format file, filename .svf, can be created for third party JTAG programming
support.
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