Field-Update of SLG46824/6 used as power sequencer
Forums:
Dear Forum
My intention is to use SLG4682x as power sequencer in our newest Zynq MPSoC design.
Initial NVM programming will be done during production test through testpoints on I2C with the MPSoC unpowered.
In the product, the I2C-bus is controlled by MPSoC as master and available only after the SLG4682x controlled power sequencing. Therefore a field update becomes risky if the NVM programming is interrupted by a power fail: The sequencing will not work due to the now corrupted NVM and the mentionned testpoints are not accessible in the field.