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NRST pin on STSPIN32F0A

Posted on December 07, 2017 at 10:55NRST � I/O Reset - Device reset input/internal reset output(active low). How can I connect this to a HC-05 bluetooth module?#stspin32f0a #bluetooth #nrst-pin #hc-05

STM32F030 I2C Memory Interface emulation

Posted on December 07, 2017 at 11:33I would like to make my MCU appear as a 256-byte I2C RAM on the I2C bus - then I can have the controlling device simply write to the 'RAM' in  order to communicate.This requires variable length access ( e.g. 'writ...

SPI gets out of sync

Posted on December 07, 2017 at 16:56Hello,I have a problem with the STM32H743.I have a pluggable SPI connection and the STM32H743 works as a Slave in receive mode.When I pull and plug the connection the NSS, CLK and Data connections toggles and I ge...

twagner by • Associate II
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Question about Level1 Cache STM32F7

Posted on November 08, 2017 at 10:11Hello,I have read several documents about the Cache, but the last sentence in AN4839 (Level 1 cache on SRM32F7 Series) confuses me.' However, If the external device is an ASIC and/or a FIFO, the user must disable ...

DMA returns wrong SPI data

Posted on December 08, 2017 at 10:48Hello everyone.I have a strange problem where my SPI data seems to 'shift' and my DMA goes out of control (I do not have a clue why it is acting as it does). I am developing a program using the STM32L433CC togethe...

Why the device serial number in BlueNRG1 is incorrect

Posted on December 08, 2017 at 08:44I found there is an uniq device serial number in BlueNRG1 datasheet, and it's address in 0x100007F4, but when I try to read it, they are all 0xFF, and the memory content in keil memory dialog is all 0xFF. My board...

cgh21 by • Associate II
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Start DFU bootloader.

Posted on December 08, 2017 at 08:32Hello,I'm trying to start the DFU bootloader of an STM32F4 Controller.I have my own bootloader implementation and I try to jump to the DFU bootloader from my bootloader.My Problem is:My Firmware is connected to CA...

Resolved! HAL_UART_RxCpltCallback() is triggered only once

Posted on December 07, 2017 at 10:21 Hello all, I am using STM32F030R8T6 and also using HAL libraries for programming. I am using two UARTs one as a debug UART1 to send various messages to PC and UART2 for communication with Bluetooth module (...

Mrunal A by • Associate III
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