From b4c58d57dc8dfcf839a843f7b7bb880a6238b624 Mon Sep 17 00:00:00 2001 From: Erich <69478071+ErichZimmer@users.noreply.github.com> Date: Tue, 2 Dec 2025 10:17:01 -0600 Subject: [PATCH 1/3] Include newer RP2350 steppings.md --- readme.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/readme.md b/readme.md index 4737c04..57bfca6 100644 --- a/readme.md +++ b/readme.md @@ -7,9 +7,9 @@ The firmware is compatible with both the Pico 2 board (based on the RP2350 chip) The [original Pico](https://www.raspberrypi.com/products/raspberry-pi-pico/) (RP2040 chip) supports half the number of instructions and has a slower maximum clock speed. > [!CAUTION] -> The RP2350 currently has a hardware design bug that impacts the operation of the internal pull-down resistor on GPIO pins configured as inputs. +> The RP2350 A2 stepping currently has a hardware design bug that impacts the operation of the internal pull-down resistor on GPIO pins configured as inputs. > This may impact the operation of the PrawnBlaster trigger inputs when using the RP2350, depending on the specs of your trigger. For full details, see errata E9 in the [RP2350 datasheet](https://datasheets.raspberrypi.com/rp2350/rp2350-datasheet.pdf). -> The issue can usually be fixed by providing a suitably sized external pull-down resistor on the relevant input pins. +> The issue can usually be fixed by providing a suitably sized external pull-down resistor on the relevant input pins or avoiding boards with A2 steppings in favor of A3 and A4 steppings which do not have this problem. > RP2040 based boards do not suffer from this issue (but have reduced timing and storage compared to the RP2350). ## What is a pseudoclock device? From 3e670e78534ea773b5163e5da3c5908e22b39939 Mon Sep 17 00:00:00 2001 From: Erich <69478071+ErichZimmer@users.noreply.github.com> Date: Tue, 2 Dec 2025 10:31:01 -0600 Subject: [PATCH 2/3] Grammatical fix.md --- readme.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/readme.md b/readme.md index 57bfca6..4f72568 100644 --- a/readme.md +++ b/readme.md @@ -9,7 +9,7 @@ The [original Pico](https://www.raspberrypi.com/products/raspberry-pi-pico/) (RP > [!CAUTION] > The RP2350 A2 stepping currently has a hardware design bug that impacts the operation of the internal pull-down resistor on GPIO pins configured as inputs. > This may impact the operation of the PrawnBlaster trigger inputs when using the RP2350, depending on the specs of your trigger. For full details, see errata E9 in the [RP2350 datasheet](https://datasheets.raspberrypi.com/rp2350/rp2350-datasheet.pdf). -> The issue can usually be fixed by providing a suitably sized external pull-down resistor on the relevant input pins or avoiding boards with A2 steppings in favor of A3 and A4 steppings which do not have this problem. +> The issue can usually be fixed by providing a suitably sized external pull-down resistor on the relevant input pins or avoiding boards with A2 steppings in favor of board with A3 and A4 steppings which do not have this problem. > RP2040 based boards do not suffer from this issue (but have reduced timing and storage compared to the RP2350). ## What is a pseudoclock device? From c9970c1c432910422d36e5bab7dc03eedd116bbd Mon Sep 17 00:00:00 2001 From: Erich <69478071+ErichZimmer@users.noreply.github.com> Date: Tue, 2 Dec 2025 10:32:51 -0600 Subject: [PATCH 3/3] Grammatical fix (again) - Forgot an 's' (e.g., board --> boards) --- readme.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/readme.md b/readme.md index 4f72568..af33213 100644 --- a/readme.md +++ b/readme.md @@ -9,7 +9,7 @@ The [original Pico](https://www.raspberrypi.com/products/raspberry-pi-pico/) (RP > [!CAUTION] > The RP2350 A2 stepping currently has a hardware design bug that impacts the operation of the internal pull-down resistor on GPIO pins configured as inputs. > This may impact the operation of the PrawnBlaster trigger inputs when using the RP2350, depending on the specs of your trigger. For full details, see errata E9 in the [RP2350 datasheet](https://datasheets.raspberrypi.com/rp2350/rp2350-datasheet.pdf). -> The issue can usually be fixed by providing a suitably sized external pull-down resistor on the relevant input pins or avoiding boards with A2 steppings in favor of board with A3 and A4 steppings which do not have this problem. +> The issue can usually be fixed by providing a suitably sized external pull-down resistor on the relevant input pins or avoiding boards with A2 steppings in favor of boards with A3 and A4 steppings which do not have this problem. > RP2040 based boards do not suffer from this issue (but have reduced timing and storage compared to the RP2350). ## What is a pseudoclock device?