Path: news.eternal-september.org!eternal-september.org!feeder3.eternal-september.org!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: Andy Burns <usenet@andyburns.uk>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: RP2040 zero
Date: Tue, 6 May 2025 14:03:16 +0100
Lines: 25
Message-ID: <m7ufkmFb8i3U2@mid.individual.net>
References: <vvcmv8$2lcjh$1@dont-email.me> <m7u6k6F9pksU1@mid.individual.net>
 <n-q*2NNbA@news.chiark.greenend.org.uk>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
X-Trace: individual.net eru8bs8oPp1g1g/SogpgcA4LF54bJrfIlfXH+ztTu2VjsdV9/R
Cancel-Lock: sha1:qBpFFTUHwywBjMwxvhPRFOiM06g= sha256:7ZYvuG24fFh3HqNj9wDOUJ83Bj1tQgUXeG+zLfo+b4k=
User-Agent: Mozilla Thunderbird
Content-Language: en-GB
In-Reply-To: <n-q*2NNbA@news.chiark.greenend.org.uk>

Theo wrote:

> Andy Burns wrote:
>>> When the PICO2 came out, I bought a couple of PiMoroni 2350 boards, both
>> smaller than official PICO2 boards, one with USB-C and fewer pins

<https://shop.pimoroni.com/products/tiny-2350?variant=42092638699603>

>> one with full set of pins but no USB port on-board ...

<https://shop.pimoroni.com/products/pga2350?variant=42092629229651>

>> I remember hearing there's something b0rked with I/O on the 2350s
> 
> https://hackaday.com/2024/09/20/raspberry-pi-rp2350-e9-erratum-redefined-as-input-mode-leakage-current/
> 
> basically if you want a pulldown on an input pin there's chunky leakage
> current.  

Thanks.

> It looks like they haven't done a respin to fix it thus far.
the BusPirate folks had issues with their BP5XL boards and needed to 
junk a batch, I see that redesigned as the BP6 it's now on sale ...