STM32 MCUs Products

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CubeMX after regenerating the project the user code dissipated

Posted on December 06, 2017 at 13:59I add some code to the files generated by CubeMX. When I regenerate the project, my added code will be deleted.In the main.c is /* USER CODE BEGIN */ and /* USER CODE END*/ but in other files, there is no area whe...

An Ha by Associate II
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STM32Nucleo pack for IoT node with Wi-Fi: P-NUCLEO-CLD1

Posted on December 07, 2017 at 14:58I like to start a new project based on the STM32Nucleo pack for IoT node with Wi-Fi(STM32 Nucleo-64 development board with STM32F401RE MCU).I need to show some decimal values through a LCD keypad display. Here is ...

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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