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Swim protocol

Question asked by ivano on Aug 8, 2014
Latest reply on Aug 21, 2014 by ivano
I'm trying to program an stm8s105 using  icp method through the swim interface and using an STM32F4 discovery board as host and a firmware written by me.
I can enable the swim interface of the stm8s and i can read and write eeprom memory and registers, i can also read flash program memory but i can not enable write access to this memory in fact the PUL bit in the FLASH_IAPSR register is always set to 0 even after a successfull writing of FLASH_PUKR register.
Has anyone encountered similar issues?
Any advice or useful information is very welcome