MiniProg3 cant program from 5V

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
lock attach
Attachments are accessible only for community members.
Anonymous
Not applicable

Hi all,

   

I buying from Farnell a MiniProg3 REV B and i have a big problem of my programmer.

   

I cant program my devices from 5V. I connect my oscilloscope to SDAT, SCLK and VTARG lines and changing power supply voltage 1.8V to 5V.

   

Not working from externally power and internally both.

   

1.8V to 3.3V its ok. The lines follow the voltage. But 5V only follow VTARG. SCLK and SDAT stay on 3.3V. Why?

   

 

   

Sorry for my bad english.

   

 

   

Best regards:

   

Fejszés Sándor

   

External Solutions

0 Likes
13 Replies
Bob_Marlowe
Level 10
Level 10
First like given 50 questions asked 10 questions asked

Can you post the schematic of your PSoC5 board? Where doe the Vddd come from?

   

 

   

Bob

0 Likes
lock attach
Attachments are accessible only for community members.
Anonymous
Not applicable

The Vddd comes from programmer VTARG pin.

   

 

   

Here is the schematics from my board.

0 Likes
Anonymous
Not applicable

When i measure the voltages not connect any board to MiniProg3. Only PC->USB->MiniProg3->5 pin connector->oscilloscope

0 Likes
ETRO_SSN583
Level 9
Level 9
250 likes received 100 sign-ins 5 likes given

You have met these conditions ? Also I note the cap you have on XRES.....not

   

shown here. I can't tell from schematic, if running at 5V where is your source

   

coming for 3.3V ?

   

 

   

0 Likes
Anonymous
Not applicable

I removed the capacitor from XRES pin, nothing has changed.

   

   

 

   

   

 

   

Yes the connection is ok.

   

This is my PCB plan:

   

0 Likes
ETRO_SSN583
Level 9
Level 9
250 likes received 100 sign-ins 5 likes given

You have met these conditions -

   

 

   

 

   

0 Likes
Anonymous
Not applicable

Yes!

   

 

   

VTARG connected to Vddd,Vdda,Vddio0,Vddio1,Vddio2,Vddio3.

   

GND connected to Vssd, Vssa, Vbat, Vboost, Vssb.

   

USB is direct drive the programmer, nothing any USB HUB.

   

USB voltage is 5V.

   

Yes PSOC programmer is show 5000mV target voltage but, MiniProg3 is drive only 3,3V the SCLK and SDAT pins.

   

So:

   

VTARG five volts but, SCLK and SDAT logic high levels NOT five volts, only 3,3 volts. This is my big problem.

0 Likes
Bob_Marlowe
Level 10
Level 10
First like given 50 questions asked 10 questions asked

I think you did everything right. What convinced me is the measure of the voltages on the miniprog directly without an attached target, this seems to be rather unusual.

   

I would suggest to contact your distributor and request a replacement.

   

Additionally you may create a "MyCase" and get support from a Cypress endgineer directly. To do so: at top of this page "Support & Community -> Technical Support -> Create a MyCase" and attach your scope picture etc.

   

 

   

Bob

0 Likes
Anonymous
Not applicable

Thanks for all the help

0 Likes
Bob_Marlowe
Level 10
Level 10
First like given 50 questions asked 10 questions asked

You are always welcome!

   

 

   

Bob

0 Likes
ETRO_SSN583
Level 9
Level 9
250 likes received 100 sign-ins 5 likes given

You are always welcome!

   

 

   

Dana.

0 Likes
Anonymous
Not applicable

I wrote my case.

   

The red line is VTARG, yellow is SCLK.

   

Here is the pictures:

   

VTARG = 1,8V

   

   

VTARG = 2,5V

   

   

VTARG = 3,3V

   

   

VTARG = 5V

   

   

 

   

The SDAT and SCLK voltage level is all the same.

0 Likes
Anonymous
Not applicable

Fejszés

   

 

   

Did you ever resolve this?

   

 

   

I am experiencing  something similar. I will post more details if this hasn't been  resolved. 

   

 

   

Ed

0 Likes