AN1474 Datasheet, PDF (1/10 Pages) STMicroelectronics – ST92F150 AND ST92F120 PROBLEM RESOLUTION GUIDELINES

AN1474
APPLICATION NOTE
ST92F150 AND ST92F120 PROBLEM RESOLUTION
GUIDELINES
by Microcontroller Division Applications
INTRODUCTION
The ST92F120 and ST92F150 are part of the same family of powerful microcontrollers from
STMicroelectronics, featuring single voltage flash memory and an innovative E3prom concept.
This document gives guidelines on resolving several common application problems that have
been reported by ST Application Engineers.
Testflash features
The testflash features are described in the ST92F120 and ST92F150 datasheets.
Located in a reserved flash area, the TestFlash contains the bootcode which performs the
E3prom initialization, provides the possibility to program the flash by In System Programming
(refer to the application note AN1450 ST9 Flash Programming for a detailed description) and
then jumps to the start address application code via the reset vector.
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