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Readout Protection

I'm using the BlueNRG-LP and want to enable "Readout Protection". From the reference manual RM0479 it can be enabled by writing the UserKey 0xAAAAAAAA to DATA0/1. In the RF-Flasher 4.3.5 Openocd readout_protection.cfg file writes the UserKey 0xFCBCEC...

Resolved! Identify 8pin IC

I have an 8pin IC marked 351 but I do not seem to understand what ST component it is. See the image. I will appreciate any help for identification.

st351.jpeg
eboy by Associate
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  • 3 replies
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M24C02 POR Threshold

What is the lower limit of the POR threshold value for the M24C02-RMN6TPT?The datasheet states "lower than the minimum VCC", but we need to know the specific value.With our hardware, the VCC only goes down to 1.0 V, not 0V.  Therefore, I am inquiring...

yana by Associate
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  • 4 replies
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DAC in MCP2221

Hi to all!I am trying to generate an analog signal using a DAC that is built into the MCP2221 controller. The problem is how do I control the output current? Maybe there are some schemes or built-in capabilities in the MCP2221 controller? Is it enoug...