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GPIO Interrupt Issue

Posted on February 23, 2013 at 10:32 Hi , I am using the following code to configure my external interrupt on PH10 , PH11, PH However , the interrupt does not occur when a signal is applied to PH10 , bothe PH11 and PH12 is working ...

External I2S Microphone and the STM32f4 Discovery

Posted on February 25, 2013 at 17:46Hi Is it possible to connect an external I2S microphone to the stm32f4discovery? I know that the board already has a MEMS mic but I need to use my own microphone. Can I route the signals (MCLK, SD, WS, SCLK) to th...

STM32F4 EXTI level-sensitive interrupt problem

Posted on February 26, 2013 at 10:53I am using an STM32F4xx MCU and have configured it for external interrupts (EXTI) on PH2 (rising edge). Everything works OK until the odd occassion when the input to PH2 is left high at the end of the ISR. In this...

USB CDC flow contol

Posted on February 22, 2013 at 10:48I’m using a slightly modified version of the USB CDC example on STM32F205. The modification is that I’m terminating the STM32 end with a simple command line rather than tunnelling to and from a UART. This is a...

trevor23 by Associate III
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stm32f051 usart1

Posted on February 25, 2013 at 14:18 Hi, I'm switching from a stm32f100 to the stm32f051, most of the code is working already. but the usart1 does not work. The output doesn't change when I am trying to send something. Here are some snipp...

Confused with USB FIFO Allocation

Posted on February 25, 2013 at 13:01 This is a piece of code from usb_core.c/* set Rx FIFO size */ USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GRXFSIZ, RX_FIFO_FS_SIZE); /* EP0 TX*/ nptxfifosize.b.depth = TX0_FIFO_FS_SIZE; nptxfifosize.b.startaddr = RX_...

dimax by Senior
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STM32F4 slowed down

Posted on February 26, 2013 at 01:13HI ST COMMUNITY, I just wondering why my stm32f4 Discovery board seems to slowed down, I am still using the same program. I've just powered it on as usual and make it do its usual task of capturing data.. Then whe...

xtian by Associate II
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MCO1 output doesn't output anything

Posted on February 21, 2013 at 23:36Hello all,Can someone help me please?I must be doing something wrong because I can't do something so trivial...I'm trying to output HSI over MCO1, it must be something straightforward, but...void cpu_init_mco( voi...

cherobim by Associate
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USB CDC Driver

Posted on February 25, 2013 at 23:52Hello, Can someone inform me whether I can use (or do I need) USB CDC Driver on Windows CE. I am planning to connect STM32F4 Discovery to Cuwin Touch Screen panel which is operated on Windows CE. I checked the 're...

incrementation of a timer : problem

Posted on May 14, 2012 at 17:40hi, i am working on the stm32discovery i am trying to increment a timer (timer2 channel 1) each time the signal on the pin PA.05 is rising but the timer is random incrementing and not at each rising edge of the signa...

claire by Associate III
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