STEVAL-IDW001V1 Troubleshoot

mvvu · ‎2014-11-20

Posted on November 21, 2014 at 03:44

Hi,

I am working with evaluation board (STEVAL-IDW001V1) equipped with the WiFi module (SPWF01SA.11), and having trouble with updating the firmware (FW) to the board. I followed the instructions to have BOOT0 high during power up and then pressing RESET (SW1), but the board doesn't respond with a ready message on my terminal software.

In addition, I have tried a few troubleshooting options with the factory FW. I currently have a USB to UART bridge (UB232R) to try and send AT commands after the Eval Board gives the follow messages:

+WIND:1:Poweron (140128-caf4b79-SPWF01S)

+WIND:3:Watchdog Running

+WIND:0:Console active

<0>

+WIND:32:WiFi Hardware Started

+WIND:21:WiFi Scanning

+WIND:35:WiFi Scan Complete (0x0)

+WIND:21:WiFi Scanning

+WIND:35:WiFi Scan Complete (0x0)

...

However, the evaluation board does not respond to

any

AT commands. I've exhausted every potential issues with continuity tests on the board, testing signal transmission, and so on to no avail.

Please help,

Michael :]

Gerardo GALLUCCI · ‎2014-11-21

Posted on November 21, 2014 at 20:11

Hi,

it seems like you are not moving RX line of the module, since you are able to see messages (TX is ok!), but you are not able to send AT-cmds.

Please check your external USB2UART device: for example, close TX line over RX line, and check that what you are sending comes back.

Andrei Chichak · ‎2014-11-21

Posted on November 21, 2014 at 23:16

Agreed, it sounds like your AT commands are not being received by the module.

mvvu · ‎2014-11-21

Posted on November 22, 2014 at 02:43

I checked the TX for my bridge with an oscope and the test you suggested, however, no response from the WiFi module. I have double checked connections many times, as well as, others double check my connections. Do you think I have a broke module?

Gerardo GALLUCCI · ‎2014-11-22

Posted on November 22, 2014 at 12:50

Honestly, it's difficult for me to think about a broken module this way. I mean, since TX is working, and IDW is tested before releasing it, an HW issue seems not reasonable. Anyway, if you think about it, please contact your local ST support, and ask for another IDW.

Just to be sure...

you are using 3 wires for communication:

1 - module TX (J5, pin1) to external bridge RX - this should be ok!

2 - module RX (J5, pin2) to external bridge TX - this should be ''broken''

3 - GND (J5, pin4)

confirm?

mvvu · ‎2014-11-22

Posted on November 22, 2014 at 22:21

The connections listed below is exactly how I have the boards configured.

J5 of WiFi modules Pins...

1 Tx

2 Rx

4 GND

UB232R Pins...

1GND

7 Rx

8 Tx

How do I contact my local ST support? By phone?

Gerardo GALLUCCI · ‎2014-11-22

Posted on November 23, 2014 at 03:27

Yes, by phone or by email.

I you have no ST guy reference, I'll try to find him. Where are you from?

I don't know if it's good for you, but youcan use one of the board (USB dongle) in attach. It's directly connected over IDW J5. It's called STEVAL-PCC018V1

j

________________

Attachments :

STEVAL-PCC018V1_.jpg : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I1Ps&d=%2Fa%2F0X0000000bmk%2FWxLNUIg_lyBovbaZKy1ylt0AWKkxzukiHqjtvwIaM8Y&asPdf=false

mvvu · ‎2014-11-23

Posted on November 23, 2014 at 20:28

I tried calling the two sites in California (U.S.), but the only response is infinite loop of dialing. Would you please find me a reference?

In addition, my ticket submitted online does not seem to be getting any response either.

The UB232R is receiving and transmitting data. I have connected these lines about 5 times now, which 3 of these events was under peer-supervision. I am almost certain that the WiFi module is having hardware issues. The BOOT0 function doesn't work properly either.

Gerardo GALLUCCI · ‎2014-11-23

Posted on November 24, 2014 at 04:42

I'll try. Give me your email.

j

mvvu · ‎2014-11-24

Posted on November 25, 2014 at 08:06

mvvu@csupomona.edu

Thank you!