Search found 29 matches

by frankz
Tue Jun 25, 2019 4:51 pm
Forum: STLink
Topic: arduino 1.8.9 NUCLEO-64 ST-LINK upload
Replies: 2
Views: 1030

arduino 1.8.9 NUCLEO-64 ST-LINK upload

I updated stm32 core boards to version 1.6.
The ST-LINK upload method for the NUCLEO-64 STM32f103RB card I am using has disappeared, while in version 1.5 it was present.
How should I upload now?
by frankz
Thu Jun 13, 2019 7:53 am
Forum: Libraries & Hardware
Topic: i2-scanner: Unknown error at address
Replies: 10
Views: 2764

Re: i2-scanner: Unknown error at address

indeed I remembered the chip of the QMC5883 module is marked as DB5883 and not DA5883 as I read on the internet that it is a rip-off?
by frankz
Thu Jun 13, 2019 7:49 am
Forum: Libraries & Hardware
Topic: i2-scanner: Unknown error at address
Replies: 10
Views: 2764

Re: i2-scanner: Unknown error at address

I rebuilt the wiring and now everything works except one thing, and I'm curious to understand why. on the NUCLEO-64 board STM32f103RB is the HMC5883 sensor (actually mounts the QMC5883 chip and ID 0x0D) which creates problems. If I replace it with an HMC5983 module with ID 0x1E that also works. Conn...
by frankz
Tue Jun 11, 2019 6:39 am
Forum: Libraries & Hardware
Topic: i2-scanner: Unknown error at address
Replies: 10
Views: 2764

Re: i2-scanner: Unknown error at address

on the NUCLEO-64 STM32F103RB board I did some tests with i2-scanner as follows:
ADXL345 + DS3231 OK
ADXK345 + HMC5883 or BMP180 NO
ADXL345 + dDS3231 + other sensor NO
BMP180 or HMC5883 alone OK
Can it depend on pull-up ( or pull-down?) resistors?
what values ​​should I enter?
by frankz
Wed Jun 05, 2019 2:46 pm
Forum: Libraries & Hardware
Topic: i2-scanner: Unknown error at address
Replies: 10
Views: 2764

Re: i2-scanner: Unknown error at address

I'm sorry.
As board use NUCLEO-64 STM32F103RB, with original bootloader.
eventually I can also try on a blue pill with roger's bootloader o an maple mni con bootloader preloaded
by frankz
Wed Jun 05, 2019 5:51 am
Forum: Libraries & Hardware
Topic: i2-scanner: Unknown error at address
Replies: 10
Views: 2764

Re: i2-scanner: Unknown error at address

the missing photo
by frankz
Wed Jun 05, 2019 5:48 am
Forum: Libraries & Hardware
Topic: i2-scanner: Unknown error at address
Replies: 10
Views: 2764

Re: i2-scanner: Unknown error at address

the sensors I use are: BMP180 ADXL345 HMC5883L DS3231 (on which I have eliminated the resistance in series with the diode used for recharging the battery - use type CR and not LIR). like the attached photos. I did a test by connecting the same sensors and in the same configuration, that is, just mov...
by frankz
Mon Jun 03, 2019 2:59 pm
Forum: Libraries & Hardware
Topic: i2-scanner: Unknown error at address
Replies: 10
Views: 2764

i2-scanner: Unknown error at address

I'm trying us a core f103rb card of the sensors connected to the pins (D14 and D15 for arduino) PB9 and PB8 as STM32. The sensors have different addresses. If I connect one sensor at a time, it is recognized, while I connect them as they should be, ie in parallel the skecth does not recognize any se...
by frankz
Wed May 22, 2019 7:40 am
Forum: General discussion
Topic: [SOLVED] bootloader: bluepill and mini maple
Replies: 30
Views: 4706

Re: bootloader: bluepill and mini maple

I figured out how to do it.
I have to upload in the few seconds (when the LED flashes more slowly) and on the USB port it is seen as 1eaf: 0003.
Should I put "solved" in the title?
I thank everyone for your patience.
By the way, how can I offer you a beer?
by frankz
Tue May 21, 2019 10:33 pm
Forum: General discussion
Topic: [SOLVED] bootloader: bluepill and mini maple
Replies: 30
Views: 4706

Re: bootloader: bluepill and mini maple

a terrible doubt came to me.
The programmer must be set as:

1 AVRISP mkII (default)
2 ArduinoISP
2 Arduino as ISP
or other ?