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TIM channels and pin, I need a clarification!

Posted on October 11, 2012 at 13:33 TIM channels and pin, I need a clarification! I'm looking at the example TIM_PWM_Output (STM32F4-Discovery_FW_V1.1.0) /* PWM1 Mode configuration: Channel1 */ TIM_OCInitStructure.TIM_OCMode = TIM_...

orn by Associate II
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CPAL library - Errors on the DualAddress code

Posted on August 12, 2013 at 10:56I have set up a stm3220G dev board as a slave using the uint32_t CPAL_I2C_Listen(CPAL_InitTypeDef* pDevInitStruct) function to deal with any IC2 data being sent to the device.I need to use the Dual address functiona...

dcurran2 by Associate II
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I2S standards - strange values

Posted on August 12, 2013 at 20:14 Hi I am using the I2S bus to transfer audio samples from an audio codec module to the microprocessor. There are several standards for I2S like Phillips, MSB, LSB or PCM. With the Phillips standard, every...

ADC regular channels vs injected channels

Posted on August 12, 2013 at 13:52Hello,Can somebody kindly explain the difference/ different usage scenarios of ADC regular channels and injected channels?As per available documentation, it is mentioned injected channels are intended, when the conv...

SysTick_Handler suspended during other interrupts

Posted on August 13, 2013 at 17:12Hello Allm I am prototyping with the STM32 F3 Discovery board and using the ST standard peripheral library.  I am also using some example code that contains a function - Delay() - which uses the SysTick_Handler to d...

STM32F37x SRAM size

Posted on August 13, 2013 at 14:23Hi, I have a simple question regarding internal SRAM size of STM32F373Rx processor. Datasheet (rev.3, table 2 on page 10) specifies SRAM size of 24kB for 128kB Flash units,but I can read and write up to 32kB of SRAM...

bpacan by Associate II
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Generating a fixed number of pulses on trigger

Posted on August 08, 2013 at 23:31Hi,I have what is essentially a timer question. I am interested in using an STM32 F4 (more RAM, higher clock speeds) for an application. My application requires me to generate a pulse every 2ms, pulse length ~100 us...

srsinha by Associate II
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DMA interrupt handler hit but no IT flags set

Posted on August 13, 2013 at 11:41Hi, I am using DMA1 on an STM32F103 to collect data continuously from ADC1 as it cycles thru a regular conversion group.  Every time the DMA transfer complete interrupt fires I post an event to look at the data and ...