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Forum Posts

STM32L152 - i2c interupt not firing

Posted on November 30, 2012 at 02:22 Hi there, I am wondering if anyone could help me on a small issue. My I2C1_EV_IRQHandler is not firing when I2C_GenerateSTART(I2C1, ENABLE); is called. Can anyone see anything in the below set...

Having some trouble setting TR in the RTC

Posted on December 05, 2012 at 22:35I'm working with a mix of STM drivers and in in-house drivers, some of which we have written, some of which we inherited.  I am trying to set the date and time in the RTC, starting with TR.  It is not working.Here...

sjenyart by Associate II
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  • 3 replies
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Low-speed quartz resonator load capacitance

Posted on December 07, 2012 at 13:57Hello! In the device datasheet DS6329 v.9 on page 85 I found the following:Caution: To avoid exceeding the maximum value of CL1 and CL2 (15 pF) it is strongly recommended to use a resonator with a load capacitance...

beatle7 by Associate
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  • 1 replies
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STM32F107VC USART Transmit register

Posted on December 07, 2012 at 06:46Hi, I am trying to communicate to STM32F107VC microcontroller via UART5. I am debugging the DR register of UART5 port, but it seems it is always zero (I am using IAR EWARM with ST-LINK V2 via STM32F1Discovery). th...

hakeila9 by Associate
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  • 1 replies
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DMA reads data from DR register even with RXNE cleared. Why?

Posted on November 20, 2012 at 17:15Hi, I have the following Usart interrupt request handler: (simplified version, but has all the necessary information) void USART1_IRQHandler(void) {   if(USART_GetITStatus(COM1_PC, USART_IT_RXNE) != RESET)   {    ...

tecnico23 by Associate II
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  • 12 replies
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STM32f0 I2C

Posted on October 23, 2012 at 09:16I just want to know if anyone tried and make i2c work with STM32f0 ? I am very curious. anyone tried and any know limitations? I will appreciate with any i2c answers. I am very confused. Thanks #cpal-i2c-stm32f0

egenchic by Associate II
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  • 4 replies
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ADC Reading

Posted on December 06, 2012 at 13:55Hello All, I using stm32f2xx. I wanted some help in programing ADC. It might be a silly question. But m a newbei I have to read sensors ouput from ADC123_IN1and ADC123_IN2,ADC12_IN14,ADC12_IN15 of ADC chanells. I ...

Serial Wire Viewer (SWV) on STM32F100

Posted on December 06, 2012 at 16:52Hello,I'm trying to use the serial wire viewer with the STLINK/V2 and the STM32VLdiscovery kit. The embedded debugger is bypassed because it doesn't support SWV.Debug is OK but there is no signal on SWV. The pin 1...

pcu by Associate II
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  • 1 replies
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''undefined reference to _sbrk'' error ( yagarto )

Posted on December 06, 2012 at 17:09hello dear forum,I am trying to compile a C program for STM32F4 microcontroller with yagarto I have run into following error-------------------------------------------- c:/olimexods/yagarto/bin/../lib/gcc/arm-none...