Introduction Programming Dual SPI memory devices is a common use case for the Promira™ Serial Platform with SPI Active Level 1 and 2 Applications. My question is, is it safe to just do the short-circuit without removing the 1117 linear regulator? I can use the hot air station to remove the 1117 and then short-circuit the input with the output. One simple solution to fix this issue is to simply bypass the 1117-3.3V regulator. There are no limiting series resistors on those signals. ![]() So all I2C and SPI signals are 5V while the external memory is powered at 3.3V. Source: All Vcc connections in the ZIF socket are 3. ![]() Someone already did the schematic of this board (atached). I bought one cheap chinese CH341A serial memory programmer black PCB (see attached picture).
0 Comments
Leave a Reply. |