[MinnowBoard] using DLP-USB1232H, verification error. is it due to DP_IO3L in SPI header not connected ?

Mon Apr 18 20:12:26 UTC 2016

Thanks very much, John, for the clarification.
I understood the problem :(
OK. I will check it.

Thanks,
B.Sathish Kumar
________________________________________
From: elinux-MinnowBoard [elinux-minnowboard-bounces at lists.elinux.org] on behalf of John Hawley [john.hawley at intel.com]
Sent: 19 April 2016 01:35:44
To: elinux-minnowboard at lists.elinux.org
Subject: Re: [MinnowBoard] using DLP-USB1232H, verification error. is it due to DP_IO3L in SPI header not connected ?

Correct, that's likely the problem.  There's no level shifters between
the pins and the chip itself, it won't really harm it to run it at 3.3v,
but what you are seeing is indicative that it's not working correctly
(and what I remember seeing when I tried it myself).  You will either
need something like a Dediprog, or a SPI Hook that can run at 1.8v, or
level shift all of the pins from the DLP-USB1232H down to 1.8v for this
to work.

- John

On 04/18/2016 12:57 PM, Sathish Kumar Balasubramaniam -ERS, HCL Tech wrote:
> John,
>
> Though I am giving 1.8v to SPI flash header, the CS, SCLK, MISO and MOSI comes from DLP-USB1232H which may be using 3.3v ??? not sure
> May be this is the problem ?
> If so, how can I turn these 3.3v to 1.8v in DLP-USB1232H ?
>
>
> Regards,
> B.Sathish Kumar
>
> ________________________________________
> From: elinux-MinnowBoard [elinux-minnowboard-bounces at lists.elinux.org] on behalf of John Hawley [john.hawley at intel.com]
> Sent: 19 April 2016 01:25:53
> To: elinux-minnowboard at lists.elinux.org
> Subject: Re: [MinnowBoard] using DLP-USB1232H, verification error. is it due to DP_IO3L in SPI header not connected ?
>
> Are your logic pins running at 1.8V, or just feeding 1.8v into pin 1?
>
> On 04/18/2016 12:39 PM, Sathish Kumar Balasubramaniam -ERS, HCL Tech wrote:
>> John,
>>
>> I have a voltage regulator which has 1.8v (1.78v in digital meter) and it is given to the SPI flash header.
>>
>> Regards,
>> B.Sathish Kumar
>> ________________________________________
>> From: elinux-MinnowBoard [elinux-minnowboard-bounces at lists.elinux.org] on behalf of John Hawley [john.hawley at intel.com]
>> Sent: 19 April 2016 01:05:45
>> To: elinux-minnowboard at lists.elinux.org
>> Subject: Re: [MinnowBoard] using DLP-USB1232H, verification error. is it due to DP_IO3L in SPI header not connected ?
>>
>> Are you doing 1.8v or 3.3v into the MAXes SPI flash header?  The part is
>> setup (on the MAX) for 1.8v operation, so what you might be seeing is it
>> not operating correctly due to over voltage.
>>
>> - John
>>
>> On 04/18/2016 12:27 PM, Sathish Kumar Balasubramaniam -ERS, HCL Tech wrote:
>>> forgot to add env info
>>>
>>> OS: Ubuntu 14.04.4 64bit
>>> flashrom version - 0.9.9
>>>
>>
>>
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