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ST92F150 AND ST92F120 PROBLEM RESOLUTION GUIDELINES

2.2 PROBLEM DESCRIPTION

We are using ST92F120 128Kbyte flash devices from several lots.

The application works fine with the oldest ones but is not executed at all with the new ones.

The microcontroller seems to be halted.

2.3 ANALYSIS

Before tracecode V99080027 (mid-2000), the reset vector of the ST92F120 128Kbyte flash

device was located in 0x000000h, which was not suitable for In Application Programming

needs. It has been changed and the reset vector is now located in 0x01E000h.

2.4 RESOLUTION

Add a jump from Sector F3 to Sector F0.