Re: [Usbpicprog-technical] PIC 16F628A

[ShadowCaster <sha...@gm...>]

Thank you Frans i'm not using an external power supply so i'll remove D4
and replace it with a wire and also short the D9.


On Thu, Apr 25, 2013 at 4:22 PM, Frans Schreuder
<fra...@gm...>wrote:

>  I use the MBRL0520 (500mA, 300mV Vf) I don't know any equivalent through
> hole version but you can probably find it yourself.
> If you are not using an external power supply for your target chip, you
> can also just short the diode.
>
> Frans
>
>
> On 25-4-2013 15:13, ShadowCaster wrote:
>
> Do you have any specific model for the VDD diode to propose? Something
> like 1N5822RL or 1N5817 will be acceptable?
>
>
> On Thu, Apr 25, 2013 at 3:44 PM, Frans Schreuder <fra...@gm...
> > wrote:
>
>>  Yes you can just replace D4 with a wire, there are no problems if you
>> do that.
>> Also it is smart to replace the diode which is in series with VDD with a
>> low drop shottky diode.
>>
>> On 25-4-2013 14:40, ShadowCaster wrote:
>>
>>  Hello Frans,
>>
>>  Probably you didn't receive my previous e-mail due to the attached
>> picture,
>>
>>  VDD is almost perfect 5V if i remember correctly.
>>
>>  Can i change the D4 on my current board without any other side effects
>> or there are more changes needed ? I printed a board based on your through
>> hole schematics so if there are more changes involved probably there will
>> be difficult to implement.
>>
>>  Regards,
>> Nick
>>
>>
>> On Wed, Apr 24, 2013 at 9:22 PM, Frans Schreuder <
>> fra...@gm...> wrote:
>>
>>>  Hello Nick,
>>>
>>> The voltage is on the low side. For this reason, in the new schematic,
>>> D4 has been replaced by a 0R resistor (or a wire). Have you also measured
>>> VDD?
>>>
>>> Kind regards,
>>>
>>> Frans Schreuder
>>>
>>>
>>> On 04/24/2013 07:54 PM, Nick wrote:
>>>
>>> Hello Frans,
>>>
>>> I measured the voltage between VPP and GND using a multimeter in the pic
>>> pins, it is 12.21V. I assume that this is not enough for programing the
>>> 628A?
>>>
>>> On 24/4/2013 3:46 μμ, Frans Schreuder wrote:
>>>
>>> The io_test function is good for an indication, but not very accurate in
>>> voltage. Using a multimeter is a better option.
>>>
>>> On 24-4-2013 13:58, ShadowCaster wrote:
>>>
>>> Hello Frans,
>>>
>>>  Thanks for your quick reply i'll double check the voltages but i think
>>> that VPP is 11.4 to 12.3 when i try the I/O test function in the software,
>>> i'll connect the programmer with the pic and check with a multimeter and
>>> the I/O test function.
>>>
>>>
>>> On Wed, Apr 24, 2013 at 2:26 PM, Frans Schreuder <
>>> fra...@gm...> wrote:
>>>
>>>>  Dear Nick,
>>>>
>>>> The 16F628A PIC does work with the current software / firmware,
>>>> although this pic is very selective when it comes to operating voltages.
>>>> Please verify that VDD > 4.5V and VPP >13V with the pic connected.
>>>>
>>>> Regards,
>>>>
>>>> Frans
>>>>
>>>>
>>>> On 24-4-2013 13:22, ShadowCaster wrote:
>>>>
>>>>  Hello,
>>>>
>>>>  I implemented the programmer based on the designs and it
>>>> works flawlessly with a PIC 18F2550 and a 18F1320.
>>>> The thing is that i tried to program a 16F628A that should be
>>>> compatible, although it is properly detected it doesn't write any data to
>>>> it. When i read it i get a repeated pattern : FF 3F FF 3F.
>>>>
>>>>  I tried the same pic with a old serial programmer and it is written
>>>> without a problem so it is not a pic problem
>>>>
>>>>  I tried both the latest stable as well as the latest devel
>>>> firmware/software. Is the functionality for this model broken in the latest
>>>> versions? Can somebody verify?
>>>>
>>>>  Regards
>>>> Nick
>>>>
>>>>
>>>>  ------------------------------------------------------------------------------
>>>> Try New Relic Now & We'll Send You this Cool Shirt
>>>> New Relic is the only SaaS-based application performance monitoring service
>>>> that delivers powerful full stack analytics. Optimize and monitor your
>>>> browser, app, & servers with just a few lines of code. Try New Relic
>>>> and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Usbpicprog-technical mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/usbpicprog-technical
>>>>
>>>>
>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> Try New Relic Now & We'll Send You this Cool Shirt
>>>> New Relic is the only SaaS-based application performance monitoring
>>>> service
>>>> that delivers powerful full stack analytics. Optimize and monitor your
>>>> browser, app, & servers with just a few lines of code. Try New Relic
>>>> and get this awesome Nerd Life shirt!
>>>> http://p.sf.net/sfu/newrelic_d2d_apr
>>>> _______________________________________________
>>>> Usbpicprog-technical mailing list
>>>> Usb...@li...
>>>> https://lists.sourceforge.net/lists/listinfo/usbpicprog-technical
>>>>
>>>>
>>>
>>>
>>>  --
>>> When a man lies, he murders some part of the world..
>>> These are the pale deaths which men miscall their lives..
>>> All these I cannot bear to witness any longer..
>>> Cannot the kingdom of salvation take me home?
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Try New Relic Now & We'll Send You this Cool Shirt
>>> New Relic is the only SaaS-based application performance monitoring service
>>> that delivers powerful full stack analytics. Optimize and monitor your
>>> browser, app, & servers with just a few lines of code. Try New Relic
>>> and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr
>>>
>>>
>>>
>>> _______________________________________________
>>> Usbpicprog-technical mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/usbpicprog-technical
>>>
>>>
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Try New Relic Now & We'll Send You this Cool Shirt
>>> New Relic is the only SaaS-based application performance monitoring service
>>> that delivers powerful full stack analytics. Optimize and monitor your
>>> browser, app, & servers with just a few lines of code. Try New Relic
>>> and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr
>>>
>>>
>>>
>>> _______________________________________________
>>> Usbpicprog-technical mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/usbpicprog-technical
>>>
>>>
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Try New Relic Now & We'll Send You this Cool Shirt
>>> New Relic is the only SaaS-based application performance monitoring service
>>> that delivers powerful full stack analytics. Optimize and monitor your
>>> browser, app, & servers with just a few lines of code. Try New Relic
>>> and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr
>>>
>>>
>>>
>>> _______________________________________________
>>> Usbpicprog-technical mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/usbpicprog-technical
>>>
>>>
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Try New Relic Now & We'll Send You this Cool Shirt
>>> New Relic is the only SaaS-based application performance monitoring
>>> service
>>> that delivers powerful full stack analytics. Optimize and monitor your
>>> browser, app, & servers with just a few lines of code. Try New Relic
>>> and get this awesome Nerd Life shirt!
>>> http://p.sf.net/sfu/newrelic_d2d_apr
>>> _______________________________________________
>>> Usbpicprog-technical mailing list
>>> Usb...@li...
>>> https://lists.sourceforge.net/lists/listinfo/usbpicprog-technical
>>>
>>>
>>
>>
>>  --
>> When a man lies, he murders some part of the world..
>> These are the pale deaths which men miscall their lives..
>> All these I cannot bear to witness any longer..
>> Cannot the kingdom of salvation take me home?
>>
>>
>> ------------------------------------------------------------------------------
>> Try New Relic Now & We'll Send You this Cool Shirt
>> New Relic is the only SaaS-based application performance monitoring service
>> that delivers powerful full stack analytics. Optimize and monitor your
>> browser, app, & servers with just a few lines of code. Try New Relic
>> and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr
>>
>>
>>
>> _______________________________________________
>> Usbpicprog-technical mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/usbpicprog-technical
>>
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Try New Relic Now & We'll Send You this Cool Shirt
>> New Relic is the only SaaS-based application performance monitoring
>> service
>> that delivers powerful full stack analytics. Optimize and monitor your
>> browser, app, & servers with just a few lines of code. Try New Relic
>> and get this awesome Nerd Life shirt!
>> http://p.sf.net/sfu/newrelic_d2d_apr
>> _______________________________________________
>> Usbpicprog-technical mailing list
>> Usb...@li...
>> https://lists.sourceforge.net/lists/listinfo/usbpicprog-technical
>>
>>
>
>
>  --
> When a man lies, he murders some part of the world..
> These are the pale deaths which men miscall their lives..
> All these I cannot bear to witness any longer..
> Cannot the kingdom of salvation take me home?
>
>
> ------------------------------------------------------------------------------
> Try New Relic Now & We'll Send You this Cool Shirt
> New Relic is the only SaaS-based application performance monitoring service
> that delivers powerful full stack analytics. Optimize and monitor your
> browser, app, & servers with just a few lines of code. Try New Relic
> and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr
>
>
>
> _______________________________________________
> Usbpicprog-technical mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/usbpicprog-technical
>
>
>
>
> ------------------------------------------------------------------------------
> Try New Relic Now & We'll Send You this Cool Shirt
> New Relic is the only SaaS-based application performance monitoring service
> that delivers powerful full stack analytics. Optimize and monitor your
> browser, app, & servers with just a few lines of code. Try New Relic
> and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr
> _______________________________________________
> Usbpicprog-technical mailing list
> Usb...@li...
> https://lists.sourceforge.net/lists/listinfo/usbpicprog-technical
>
>


-- 
When a man lies, he murders some part of the world..
These are the pale deaths which men miscall their lives..
All these I cannot bear to witness any longer..
Cannot the kingdom of salvation take me home?