Search found 1749 matches

by stevestrong
Fri Nov 24, 2017 12:35 pm
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: Hello from Brazil
Replies: 5
Views: 32

Re: Hello from Brazil

Check in the device manager the serial COM port number of the blue pill, and select the same port under the Arduino IDE Tools->Port.
by stevestrong
Wed Nov 22, 2017 10:45 am
Forum: STM Nucleo boards
Topic: Use of the timer?
Replies: 13
Views: 126

Re: Use of the timer?

Here is the original leaflabs reference documentation: http://docs.leaflabs.com/static.leaflab ... -mini.html
On the right side you have the modules (including Timers).
by stevestrong
Tue Nov 21, 2017 9:24 am
Forum: STM32F4 Boards
Topic: [libmaple] Black F407VET6
Replies: 116
Views: 4645

Re: [libmaple] Black F407VET6

Eh... I don't have enough I2C to connect various sensors to the Board STM32F4 BLACK.... You are amazing ! I hope that You will eventually make ! Thank YOU ! Thanks to You I have a lot of things connected to this boards: ADC,RTC,display (FCSM LCD-16bit), Ethernet (W5500), SD card (sdio), NRF24L01 , ...
by stevestrong
Mon Nov 20, 2017 10:13 pm
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: 60 years and counting
Replies: 3
Views: 93

Re: 60 years and counting

Hallo Mike, willkommen! ;)

Please post separately each of your topics in an appropriate forum section.
by stevestrong
Mon Nov 20, 2017 10:08 pm
Forum: STM32F4 Boards
Topic: [libmaple] Generic F407VE mini (vcc-gnd version)
Replies: 16
Views: 357

Re: [libmaple] Generic F407VE mini (vcc-gnd version)

I finally managed to bring Wire lib on F4 mini to work, the new files are checked in with this commit: https://github.com/stevstrong/Arduino_STM32/commit/f83f33f97f5823f56baae7762321aa8d427d03f2 (Roger, don't ask me to prepare a PR, because I know now that I am not able to make a clean PR... :( . Ho...
by stevestrong
Sun Nov 19, 2017 11:37 pm
Forum: STM32F4 Boards
Topic: [libmaple] Generic F407VE mini (vcc-gnd version)
Replies: 16
Views: 357

Re: [libmaple] Generic F407VE mini (vcc-gnd version)

OK, so it seems that it was me (as always :? )
I forgot to set the AF mode register correspondingly.
Funny, as soon as I set it right, it started to work... :mrgreen:
by stevestrong
Sun Nov 19, 2017 9:43 am
Forum: STM32F4 Boards
Topic: [libmaple] Generic F407VE mini (vcc-gnd version)
Replies: 16
Views: 357

Re: [libmaple] Generic F407VE mini (vcc-gnd version)

Well, I don't know whether the official ST core has support for this board, this has 25MHz crystal. I only found the Disco 407G the closest target supported. EDIT I checked the I2C part of ST official core , it does exactly the same as I do in the init phase. Hmm. It is really strange that the pins ...
by stevestrong
Sun Nov 19, 2017 8:43 am
Forum: STM32F4 Boards
Topic: [libmaple] Generic F407VE mini (vcc-gnd version)
Replies: 16
Views: 357

Re: [libmaple] Generic F407VE mini (vcc-gnd version)

I have a problem with this board, the I2C 1 interface seems to get locked to BUSY state (SR2 bit 1) right after setting at least one of the PB6/7 pins to GPIO_AF_OUTPUT_OD. I tried the software reset (SWRST), it clear the BUSY bit for the moment, but it gets set again after I release the SWRST bit. ...
by stevestrong
Sun Nov 19, 2017 7:30 am
Forum: General discussion
Topic: SPI with DMA , erratic behavior on ADC1
Replies: 4
Views: 109

Re: SPI with DMA , erratic behavior on ADC1

In my case both ADC0 and ADC1 readings were affected.
by stevestrong
Sat Nov 18, 2017 10:59 pm
Forum: General discussion
Topic: SPI with DMA , erratic behavior on ADC1
Replies: 4
Views: 109

Re: SP2 with DMA , erratic behavior on ADC1

You probably mean SPI, right? I have the same experience, the digital noise influnces the ADC readings a lot. That is why the latest original maple mini boards had separated Vcc and GND for analog and digital. The china clones don't have them. The workaround i did was reading the analog input with o...