F0 discovery can not connect

[lbheibai]

Posted on August 03, 2012 at 04:44

i am using the F0 DISCOVERY, after down load my build, when i want to down load again,the ST-LINK reports 'no target connected ', i reinstalld the driver, but it is not useful, what should i do

[lbheibai]

Posted on August 03, 2012 at 04:54

in another way ,i can use the tool ST-LinkUpgrade.exe(../Keil\ARM\STLink ) to detect ST-LINK, or update the fireware,but the problem still exist

[frankmeyer9]

Posted on August 03, 2012 at 09:02

...the ST-LINK reports 'no target connected ', i reinstalld the driver, but it is not useful, what should i do

''Target'' is not the ST-Link, but the F0 part. The ST-Links seems to work well. Did you try to connect with the ST-Link Utility ? If the board worked before, this might be the application on the F0. If so, I suggest to start the board into system BOOT mode and doing a mass erase, for instance with the ST-Link Utility. There ought to be some similar threads describing this.

[lbheibai]

Posted on August 04, 2012 at 03:12

i try to get the board into BOOT mode,was my steps wrong?1 remove R26, then 10 KOhm pull-up resistor  to solder 

R27

2 fit the SB14  SB15,  then press 'download'button,but the same wrongwhat should i do next(i using keil MDK 453)?

[lbheibai]

Posted on August 04, 2012 at 03:20

i download a F0 DISCOVERY user manual(UM1525),it seem very simple,no describe about how to enter BOOT

[Tesla DeLorean]

Posted on August 04, 2012 at 03:26

For the F0 ST-Link in Keil you should be using ''ST-Link (deprecated)''

[lbheibai]

Posted on August 04, 2012 at 07:41

i had selected it at first,when i got the 

board I've tried some examples and it worked perfectly.

[lbheibai]

Posted on August 08, 2012 at 09:34

now the F0 DISCOVERY can enter the BOOT0 MODE, I download the UART tool ' Flash_Loader_Demonstrator_v2.5.0', it can read the IC  ,but it seem can't support  it

[lbheibai]

Posted on August 08, 2012 at 09:36

the 'flash_loader2.5' is the newest version i can download from the website

[tdowad]

Posted on August 28, 2012 at 02:47What did you do to get it into Boot mode?Remove R26, add R27, add SB15 and SB14...anything else?