[SOLVED] designing ISP header for STM32F030F4P6

Status
Not open for further replies.

pcsandhya82

Member level 3
Joined
Jul 31, 2010
Messages
58
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Location
Bangalore
Visit site
Activity points
1,732
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?

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

Attachments

  • MB1034.pdf
    648.2 KB · Views: 101
  • DM00088500.pdf
    1.2 MB · Views: 91
  • DM00039193.pdf
    1.7 MB · Views: 94

Got reply from STMicro forum.

"PB3 SWO is typically used in support of the SWV (Serial Wire Viewer), as far as I'm aware the Cortex-M0 does not support this functionality (Debug/Trace), or JTAG, so the pin can be left unconnected.

If may be connected in the schematic due to the way ST shares a common footprint over several processor families, allowing migration up and down the feature/power/cost line.

I, personally, would opt to use the standard 10-pin 0.05" pitch ARM programming header over the ST ISP one."
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…