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How to re-Mount SD-Card after pulling out SD-Card.

I can't re-mount SD-Card after pulling out and inserting SD-Card again.It shows "FR_DISK_ERR" when error occurs.Please let me know if there is anything I have to follow.I have CubeMX ver 4.22, FreeRTOS and HAL Driver.=================================...

spark.72 by Associate
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trying to understand systick and timer at STM32L1xx

Posted on March 19, 2014 at 08:26Hello,I'm using STM32L152 discovery board.I'm trying to define systick for 100mSec, and tim2 to 1 sec.After measuring the pin togeling with scope, this is what I came up with:I know SystemCoreClock is 32MHz.For systi...

zoharr by Associate II
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Going to DFU mode programmatically STM303RE

Hi,I hav difficulties going to DFU mode programmatically. In the en.DM00070391.pdfpage 19, saysThe embedded boot loader is located in the System memory, programmed by ST duringproductionbut does not specify the start address. I tried en.CD00167594.pd...

Marius CO by Associate III
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Resolved! USART Rx with DMA: IDLE interrupt vs timer?

Posted on August 01, 2017 at 16:03Hi ForumI'm trying to implement USART Rx of variable, unknown length messages at a 1Mbps baud rate through DMA. I would like to minimize the latency from receiving to consuming the data, so I'm trying to do this wit...

Resolved! STM32F303R8T6 Bit-Banding Calculation Out of Range

Hi , I encountered an interesting problem while I was trying to calculate the Bit-Banding Address of GPIO registers .The peripherals working on AHB2 and AHB3 busses are overflowing when trying to calculate their bit-banding map .. For Example ;I wan...

BG1 by Senior
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Resolved! STM32F777BIT6 OTP data reprogramming question?

Hi,It says on page 107 of stm32f777bit6 manual that:"Each OTP data block can be programmed until the value 0x00 is programmed in the corresponding OTP lock byte."I understand that OTP is supposed to be one time programmable but the above statement se...

I2C read/write proper way, to many options

HAL_I2C_Mem_Read(I2C_HandleTypeDef, Address, REGUSTER, rsz, buff, bsz, tout);If the device address is 0x77,what is th proper way. I can find non consistent answers, though i cannot read. I get HAL_ERORis it:Anyway each option returns non consistent d...

Marius CO by Associate III
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