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PSoC 5, 3 & 1 MCU

Andy
New Contributor

Hi, is there a way of reading back the code from 27443 device? Supplier who helped us to provide the programming service, was discontinued our business in late of December 2020. We find no way to read back the code from the known good chip as it has the flash security enabled. The only thing I could retrieve the info from the known good chip was the checksum in PSoC programmer. Please assist.

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SampathS_11
Moderator
Moderator

The purpose of flash security is to disable the reading of the flash contents. Hence, PSoC programmer cannot read the contents of the flash, as the chip will report that the flash is locked. This is done at the silicon level, and even Cypress equipment do not have the capability to read the contents of a secured flash, which is really the purpose of flash security.

Best regards,

Sampath Selvaraj

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SampathS_11
Moderator
Moderator

The purpose of flash security is to disable the reading of the flash contents. Hence, PSoC programmer cannot read the contents of the flash, as the chip will report that the flash is locked. This is done at the silicon level, and even Cypress equipment do not have the capability to read the contents of a secured flash, which is really the purpose of flash security.

Best regards,

Sampath Selvaraj

View solution in original post

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