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Accessing SD card via SPI

Posted on January 03, 2013 at 05:55Hi, I have an STM32F4 discovery board and I want to access SD card via SPI. The reason why I want to access Sd card via SPI is that the breakout module that I have has an SPI interface. I have looked on the interne...

osama by • Associate II
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  • 1 replies
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stm32f407, jtag does not respond

Posted on January 02, 2013 at 23:09Hi all,I have a strange behaviour with 4 stm32f407 boards related to the jtag. The jtag of the stm32f4 is connected to a FTDI4232 chip. I have connected only the JTCK (with a 10k pd), the JTDI (with a 10k pu), the ...

romaine by • Associate II
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  • 2 replies
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STM32 F103xx using PB3

Posted on September 20, 2012 at 11:44Hello, We want to use PB3 of the microC. As found in some forums we have to disable JTAG. We do this using following line of code: GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE); Then we want to use P...

gino by • Associate II
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  • 7 replies
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Hard Fault Handler Interrupt Stm32F1?

Posted on January 02, 2013 at 21:55Any help with finding this bug is appreciated. I am truly at a loss.I am using the virtual com port for USB(V.3.1). I had it working great, communication was like a wife and husband once wished. I was sending host ...

STM32F0 ADC DMA, where are results of measurements

Posted on December 28, 2012 at 09:21Board STM32F0 Discovery, measurment on 4 analog inputs: PC0 - ADC_IN10 PC1 - ADC_IN11 PC2 - ADC_IN12 PC3 - ADC_IN13 and Vbat, Vref, Vtemp. Configuration of ADC1 and DMA is shown in attachment. for ''ADC_InitStruct...

STM32F4 ADC_TripleMode_RegSimult

Posted on December 20, 2012 at 17:27Hi, I am trying to use the 3 ADC in simultaneous mode. I receive correctly every data but I am not able to catch any interruption in order to drive data on the good place. When I have my table I want to dispatch a...

yayi by • Associate II
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  • 18 replies
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ADC in STM32F4 Discovery

Posted on January 02, 2013 at 08:06hi:     i found that ADC12 and ADC123 in STM32F4 Discovery.  How Can I use them?    or whats the way to use ADC on STM32F4Discovery? I have library of STM32F4xx.c in that ADC1, ADC2, ADC3 are only defined? which ar...

its by • Associate II
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  • 1 replies
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Problem on using USART with DMA

Posted on January 01, 2013 at 20:52Hello, I am implementing a UART driver using circular queue scheme, and found a minor problem with it. When I put a new character after DMA channel 5 finishes its transfer - i.e. put a new character when DMA_CNDTR5...

how to use Index Track in quadrature encoder mode

Posted on December 26, 2012 at 18:15have 2 timer channels (CH1+CH2) setup in quadrature encoder mode and all things work fine. The encoder (Avago HEDS 5540) has a third index channel with very narrow pulse per revolution. Is ist possible to use this...

jveith by • Associate II
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  • 3 replies
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