[sdiy] how you got started with your current µC? (was: Re: Most common ICs)

[Vinicius Brazil]

I also ever use my own custom boards.

Vincius

On Sat, Sep 19, 2015 at 7:59 PM, <rburnett at richieburnett.co.uk> wrote:

> I started using dev boards for PICs about 20 years ago for industrial
> projects, but these days I usually just go straight to a first hash of the
> intended hardware...
>
> When you're just starting out it's nice to have a development board that
> guarantees the correct power supply, clock and reset signals are presented
> to the processor and a convenient method of programming, so you don't have
> to worry about these things.  It also often provides a few other built-in
> features too like some switches, some LEDs, pots, an LCD, RS-232 serial
> port, CAN port, USB etc.  However, I quickly realised that for most of the
> things I was developing I didn't use half of the things on the dev boards,
> and/or the quality of the Microchip dev boards was actually quite poor.
>
> For instance Microchip's dsPICDem Dev Board only has a crappy 8-bit 8kHz
> CODEC on board which is fine for telecoms quality speech but completely
> useless for pro-audio applications, and doesn't have proper analogue and
> digital ground-planes either.  It also doesn't have MIDI in/out, uses a
> different LCD to the industry standard Hitachi alphanumeric standard, etc,
> and has really crappy thumbwheel "preset" pots for the analogue inputs that
> only last for about 10 turns before wearing out!  For these reason I
> usually make my own "dev Board" with just the features I want on it to help
> me develop whatever I'm working on at the time.
>
> There's a lot to be said for knocking out the first version of hardware as
> early as you can, then you find out about potential hardware problems and
> deficiencies as early as possible.  Ground loops, unwanted noises, LCD
> glitches, switch bounces, etc...  Leaving more time to thing about and
> implement solutions.
>
> -Richie,
>
>
> On 2015-09-19 22:46, Michael Zacherl wrote:
>
>> I got curious:
>> did you people start with a typical dev-board of PIC/AVR/STM32/... ?
>> m.
>>
>> On 19.Sep 2015, at 21:28 , Richie Burnett <rburnett at richieburnett.co.uk>
>> wrote:
>>
>> No probs here either.
>>>
>>> -Richie,
>>>
>>> ---- Pete Hartman wrote ----
>>>
>>> On Sat, Sep 19, 2015 at 4:43 AM, Gordonjcp <gordonjcp at gjcp.net> wrote:
>>>>
>>>> On Fri, Sep 18, 2015 at 10:40:37PM +0100, Tom Wiltshire wrote:
>>>>
>>>>> I'd probably have to agree. TL07x op-amps would be my most used IC.
>>>>> Not very glamorous, but they're the glue that holds a million audio
>>>>> circuits together.
>>>>>
>>>>> Aside from that, PIC uPs for digital, and SSM2164/V2164 for analog.
>>>>>
>>>>
>>>> I've never liked PICs.  They're slow, expensive and very hard to
>>>> develop for, thanks to the sheer lack of support - and last time I looked
>>>> you had to pay extra for surface-mount!
>>>>
>>>> I used AVR for a bit but I'm moving over to STM32 - ridiculously cheap
>>>> and ridiculously fast.
>>>>
>>>> This must be a personal taste thing, as I have no problems at all
>>>> programming with PICs.  The documentation is very good, and there are lots
>>>> of examples to get over the most difficult part which is how to set the
>>>> various switches (in AVR world the equivalent is the "fuses").  I've
>>>> actually had more frustration figuring out how to set fuses, to be honest.
>>>> I haven't played with the STM32s, I'll certainly have to give that a try.
>>>>
>>>
>> --
>> http://mz.klingt.org
>>
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