RobotDyn expands STM32 offerings

Any other microcontroller based boards
Post Reply
User avatar
Rick Kimball
Posts: 71
Joined: Thu Mar 14, 2019 6:27 pm
Location: Eastern NC, US
OS: Linux
IDE: Arduino 1.8.9, vscode+make, eclipse, vi, emacs
Core: libmaple, STM official, fabooh, none
Board: Bluepill, Nucleos, Discovery
Contact:

RobotDyn expands STM32 offerings

Post by Rick Kimball » Tue Jun 11, 2019 6:53 pm

While checking on the status of my stm32f303 mini dev board shipment, I noticed that RobotDyn is now offering 3 different black pills:

https://robotdyn.com/catalog/developmen ... ields.html

You can get the stm32f103CB (128k) or stm32f103C8 (64k) with or without the dfu bootloader preloaded and with or without header pins soldered.
In addition they have the stm32f303CC (256k cortex-m4) with or without headers.

The nice thing about all these boards, is that they have the proper USB pullup resistor and they have the same pin layout as the bluepill and redpill. They are reasonably priced and ship world wide.
-rick

User avatar
Vassilis
Posts: 150
Joined: Wed Feb 27, 2019 5:09 pm
Answers: 2
Location: Thessaloniki, Greece
OS: Linux, Win10, MacOS
IDE: Arduino 1.8.9
Core: Roger, STM official
Board: Bluepill, Maple mini, STM32F4xx
Contact:

Re: RobotDyn expands STM32 offerings

Post by Vassilis » Tue Jun 11, 2019 7:32 pm

A few days ago I bought two F303 pieces from RobotDyn.
The F103CB has almost the same cost as the F303.
I think the F303 is a value-for-money device compared to the F103CB.
-Vassilis Serasidis

User avatar
Rick Kimball
Posts: 71
Joined: Thu Mar 14, 2019 6:27 pm
Location: Eastern NC, US
OS: Linux
IDE: Arduino 1.8.9, vscode+make, eclipse, vi, emacs
Core: libmaple, STM official, fabooh, none
Board: Bluepill, Nucleos, Discovery
Contact:

Re: RobotDyn expands STM32 offerings

Post by Rick Kimball » Tue Jun 11, 2019 7:39 pm

Vassilis wrote:
Tue Jun 11, 2019 7:32 pm
I think the F303 is a value-for-money device compared to the F103CB.
I agree. I'm looking forward to mine arriving today or tomorrow. In the meantime before it has arrived, I've been hacking up a custom core for the F303 using just register access, no HAL, no LL, just the stm32f3xx.h and MODIFY_REG, SET_BIT and CLEAR_BIT.
-rick

ag123
Posts: 168
Joined: Thu Mar 07, 2019 6:15 am
Location: Singapore
OS: linux
IDE: eclipse, arduino 1.8.5
Core: Roger's
Board: Maple mini, Bluepill

Re: RobotDyn expands STM32 offerings

Post by ag123 » Sat Jun 15, 2019 2:32 pm

yup, get the f303 (& hopefully it stays at current prices), 40k sram 256k flash 4x5msps adc, dac, op amp, comparators on timers, cortex-m4 + fpu
and best of all the chip is the same size as a stm32f103 (pin compatible!) and the board is smaller than blue pill
i'm not too sure if f303 is a different nm semiconductor technology vs the f103 (perhaps f103 may be a 110-130nm node while f303 may be 90nm or possibly less)
but otherwise we could envision that f103c{8,B} is a much smaller chip, this one use a cortex m4 and adds and fpu + all that extra sram and flash + extra pheriperials
:)

User avatar
wanders
Posts: 11
Joined: Tue Jun 18, 2019 9:27 pm
Location: Austin TX USA
OS: Windows, Linux
IDE: Arduino
Board: Bluepill, Arduino Mega 2560, LPC14u11, RPi V3a

Re: RobotDyn expands STM32 offerings

Post by wanders » Tue Aug 06, 2019 1:58 am

I'm intrigued by the f303 series (but hey, I used to design floating-point units). Regardless of the pinouts and form factors, how does the (STM core) STM32duino code fit? Can I use the same USB bootloader I use on the f103? I realize that the memory map will be somewhat expanded, and there will be adjustments to some peripheral libraries, but for me not having to do a lot of programming to get a consistent boot-time setup would be useful.

But that FPU, and a real 32-bit timer that doesn't need to be spliced? Nice...

Post Reply