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Forum Posts

STM32F437-How to use 4KB backup SRAM as EEPROM?

Posted on November 16, 2017 at 09:17Hi guys,             I'm using STM32F437IIH6 MCU, it has a 4KB backup SRAM which can be used as EEPROM like memory,In order to achieve this we need to have a battery (3.3V coin battery) connected to the Vbat pin o...

Something wrong with SDIO

Posted on November 14, 2017 at 09:39there is something wrong with my stm32f427VI while i'm trying to operate sdio.i am init the sdio interface in pooling mode.after this ,while i call HAL_SD_WriteBlocks.it's return HAL_ERROR.and Error code is 16 Tra...

Xin Yang by Associate II
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SPI with DMA Problem

Posted on November 12, 2017 at 19:59HII have stm32f407 evaluation boardI use SPI with DMA to read/send the valuesin the evaluation board have accelarometer(spi-connect)this is the data i want to send and i shuold be get acc(x,y,z)TX_Buffer[0] = 0xA9...

STM32F4 ADC Impedance Calculation

Posted on November 05, 2017 at 19:38Hey folks!I�m trying to calculate the impedance and current draw of the ADC in an STM32F4 that�s on the Netduino. The data sheet says that the max External Input Impedance is 50K?, but gives the following equation...

0690X00000608qxQAA.png

STM32F407 - DMA Double Buffer Mode To/From GPIO

Posted on November 15, 2017 at 02:02Hello All,I am trying to use double buffer mode on one of the GPIO ports - using the timer method; and I've enabled circular DMA mode and have enabled M0AR and M1AR; but when the first transfer takes place; I'm ge...

stcom9174 by Associate II
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STM32F303 Nucleo CAN HAL_TIMEOUT Error

Posted on November 13, 2017 at 09:38Hello,I'm trying to set up CAN on my STM32F303 nucleoy board to send a CAN message but I keep getting HAL_TIMEOUT error from the HAL_CAN_Transmit() function. Here's my code:/** ************************************...

[bug] STM32CubeMX 4.23.0 does not copy startup.s

Posted on November 14, 2017 at 09:44I have selected option for 'STM32 Firmware Library package' -> 'copy only the necessery library files'.I'm using just LL libraries and GPDSC project.All files ware generated without error but no startup file was p...

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