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designing ISP header for STM32F030F4P6

Question asked by sandy.m on Jun 6, 2014
Latest reply on Jun 6, 2014 by Clive One
Hello,

I am designing a board using STM32F030F4P6. I have to use STM32F0 Discovery board STLINK for ISP. Checking the schematics of Discovery board, I found out that the ISP connector (SWD) is connected as follows:

1.3.3V
2.SWCLK
3.GND
4.SWIO
5.NRST
6.PB3 of the STM32 controller on board.

Now, I have trouble understanding the 6th connection. the signal name is given as T_SWO and it is connected to PB3. what is this signal? In TSSOP 20 package of STM32F030F4P6, this pin(PB3) is not there. so where should I connect 6th pin of ISP header? or can i leave it open?

Referances:
MB1034: Discovery board schema
DM00088500.pdf: STM32F030F4P6 Datasheet
DM00039193.pdf:STM32F051xx Datasheet

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