Search found 518 matches

Go to advanced search

by stevestrong
Thu Jan 19, 2017 7:57 pm
Forum: General discussion
Topic: STM32F103C8T6 - serial.print from setup()
Replies: 4
Views: 92

Re: STM32F103C8T6 - serial.print from setup()

You should use the DFU upload method, then you will have isConnected().
We had already this issue, search the forum!
by stevestrong
Thu Jan 19, 2017 7:53 pm
Forum: Projects
Topic: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA
Replies: 3
Views: 69

Re: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA

Without browsing through the videos, could please describe what kind of TFT do you use? Spi or parallel?
by stevestrong
Thu Jan 19, 2017 7:47 pm
Forum: Generic STM32F103
Topic: Modbus Master and Slave on STM32F103 and UNO
Replies: 3
Views: 53

Re: Modbus Master and Slave on STM32F103 and UNO

I have 2 blue pills communicating with each other over RS485 without any special lib. It is just using the normal serial communication and one control signal for direction. The possible problem you can have is that the oroginal RS485 adapters use chips that are working with 4.5V and above. So it wil...
by stevestrong
Thu Jan 19, 2017 7:28 pm
Forum: Generic STM32F103
Topic: STM32F103CB Dual SPI
Replies: 7
Views: 82

Re: STM32F103CB Dual SPI

Use the new SDFat beta (search it on github abd read the specification), it can wotk with SPI 2. Then you can use SPI 1 for the display.
by stevestrong
Wed Jan 18, 2017 3:18 pm
Forum: Generic STM32F103
Topic: Setup of STM32F103CBT6 (Maple Mini) board
Replies: 31
Views: 388

Re: Setup of STM32F103CBT6 (Maple Mini) board

You should reset the board after you connect the adapter to USB, otherwise the board get reset again when you plug it to PC.

I would just disable write protection, and then try the bootloader upload with stm32flash utility.
by stevestrong
Wed Jan 18, 2017 1:57 pm
Forum: Generic STM32F103
Topic: Setup of STM32F103CBT6 (Maple Mini) board
Replies: 31
Views: 388

Re: Setup of STM32F103CBT6 (Maple Mini) board

i can only give you same advise: exchange RX and TX.
by stevestrong
Wed Jan 18, 2017 1:16 pm
Forum: Generic STM32F103
Topic: STM32F103CB Dual SPI
Replies: 7
Views: 82

Re: STM32F103CB Dual SPI

by stevestrong
Wed Jan 18, 2017 12:51 pm
Forum: Generic STM32F103
Topic: Setup of STM32F103CBT6 (Maple Mini) board
Replies: 31
Views: 388

Re: Setup of STM32F103CBT6 (Maple Mini) board

Connect RX (maple mini) with TX (USB serial adapter), so basically exchange RX and TX . And, btw, there is no BOOT2, (but) is BOOT0. And it is connected to the second button on the board, next to "reset" button. So you could just connect BOOT1 (pin 2, or PB2) to GND and then: - press (but)...
by stevestrong
Wed Jan 18, 2017 12:41 pm
Forum: Generic STM32F103
Topic: Modbus Master and Slave on STM32F103 and UNO
Replies: 3
Views: 53

Re: Modbus Master and Slave on STM32F103 and UNO

Try to connect serial 1 of F103 with the PC over RS485, see if the PC receives data when F103 is master and PC is slave.

You could post here your sketch.
by stevestrong
Wed Jan 18, 2017 12:26 pm
Forum: Generic STM32F103
Topic: Setup of STM32F103CBT6 (Maple Mini) board
Replies: 31
Views: 388

Re: Setup of STM32F103CBT6 (Maple Mini) board

It may happen that the flash is "write-protected". In this case use this utility to unlock the flash. After unlocking, try to upload the bootloader again. For uploading the bootloader, you must manually connect BOOT0 (PB8) to 3.3V and BOOT1 (PB2) to GND, otherwise it won't work. After you ...

Go to advanced search