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Forum Posts

Transmitting variable to UART ?

Posted on February 12, 2016 at 06:02Guys, I want to transmit ''res'' into UART buffer :FRESULT f_open (      FIL* fp,            /* Pointer to the blank file object */      const TCHAR* path,    /* Pointer to the file name */      BYTE mode         ...

Cortex M0 TIMER 17 Assembly

Posted on February 11, 2016 at 21:54Anyone who can shed some light on clearing the Status Register flags in Timer 17 by software.I have enable TIM17 and it has begun its pre-loaded count. The SR flags CC1IF & UIF flags get set when enabled. I need t...

STM32F103RC I2C Nightmare - Help!

Posted on February 11, 2016 at 21:40I have been trying for way too long to get this peripheral to behave the way I want it to.  I'm trying to implement a driver that makes use of interrupts and DMA so as not to block.  While much about this device i...

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clark2 by Associate II
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  • 6 replies
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Compiler optimization options

Posted on February 10, 2016 at 17:21I am using Embitz as IDE and a NucleoL152 as development platform.I tried this thing. An array of integers of 1024 elements (from 0 to 1023) was copied to two different arrays, one using CPU memory transfer and th...

STM34F411-Nucleo USART stop TX interrupt advice

Posted on February 10, 2016 at 10:11 Hi, I'm trying to get comms between USART1 and USART6 working. I can send from USART1 to USART6 using interrupts and it works. What I am trying to do now is control the sending interrupt, but I think I...

dman by Associate II
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  • 12 replies
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STM32F429-Discovery, SPI problem

Posted on February 11, 2016 at 10:06 Hi. I need SPI to connect a radiomodule NRF24L I'm using STM32F429-discovery. According to the UM1670 pins PE2 trhough PE6 are free (nothing is connected to them). PE2 can be used as SPI4-SCK, PE5 – SPI4-MI...

baev_al by Associate III
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  • 4 replies
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Flash loader demonstrator not working on stm32429I-Eval

Posted on February 11, 2016 at 20:21Hello,I am trying to flash my stm32429I-Eval via RS-232 using Flash Loader Demonstrator (v2.8). I set SW1 & SW2 high (BOOT0/BOOT1), and reset the board. Run the demo GUI with default settings (baud=115.2k, Parity=...

richards by Associate
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Extra SPI Clock Pulse on Initial Transfer

Posted on February 11, 2016 at 14:24 I am using an STM32L152 with the HAL library. I initialize the spi bus similar to the example code from STM32CubeMx. However, the very first spi transaction always has a wide extra clock pulse (see attachment...

ST-Link/V2-ISOL not connecting

Posted on February 08, 2016 at 22:47Hi, I am using STM32F10x controllers in a number of projects and have been programming these with ST-Link/V2 for a couple of years now with no issues at all. I just received a couple of ST-Link/V2-ISOL. These are ...

elmar by Associate II
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  • 7 replies
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stm32 i2c communication

Posted on February 11, 2016 at 14:54I am new to the CPAL i2c library. Please help me make a code using this library to receive data from another microcontroller. ARM is supposed to run in SLAVE mode at 100kbps.