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usb problem

Posted on February 05, 2013 at 14:06The original post was too long to process during our migration. Please click on the attachment to read the original post.

marwa2 by • Associate II
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Unable to send data via UART Serial Link

Posted on February 07, 2013 at 05:12I am trying to send data to a PC COM port but cannot figure it outI configured GPIO, NVIC, and USART per specification and it all checks out. The strange thing is, when I connect the Tx pin and ground to oscillosc...

skillet by • Associate II
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  • 7 replies
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STM32F103ZC LQFP144 Programming Problem !

Posted on February 07, 2013 at 13:22Hi ,I have two development board which is the first have stm32f103vg LQFP100and second have stm32f103zc LQFP144 I can program LQFP100 model microcontroller using default SWD settings , but at the LQFP144  model i ...

From IRQChannel to IRCHandler

Posted on February 06, 2013 at 02:21Hello guys,when I initialize for example this Interrupt:NVIC_InitStructure.NVIC_IRQChannel = OTG_FS_IRQn;  I suppose it will have OTG_FS_IRQHandler as it's handler, but where can i look this up? I already searched...

How to reset virtual COM port driver?

Posted on February 06, 2013 at 18:37Hi, i am using the VCP for communication between a PC software an my STM32F207 device. Works ok so far. But if the device restarts while the PC software maintains the connection (or if somebody pulls out the cable...

zabel by • Associate III
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Fast gpio read with sync

Posted on February 05, 2013 at 09:46Hello, I have 16b parallel bus, 8MHz adc, and I need to read as fast as I can data to memory array which is 128 point long. So far I overclocked stm32f4 to 250MHz so I could do it faster. Original code is :while(i...

linas2 by • Associate II
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  • 4 replies
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6 CH PWM on TIM1 (What is Wrong with my Code)

Posted on February 06, 2013 at 11:09 Hello, I am currently migrating from Microchip MIP to ST ARM Cortex M3 so I am new to Cortex M3.I have been trying for days to configure Advance TIM1 in STM32F103RB to output 6 Channel PWM but it has prove to be ...

STM32L Stop Mode

Posted on February 05, 2013 at 20:46I cannot get stop mode current below 1.1 mA in the IAR STM32L152VB eval board. This is the code to prep and then go to stop mode:lowPowerConfigGPIO();  (this configures all GPIO pins as ADC inputs)PWR_FastWakeUpCm...

Understanding RCC register

Posted on February 05, 2013 at 15:05I'm trying to understand how below function call  from usb_bsp.c source file works:RCC_APB1PeriphResetCmd( RCC_APB1Periph_PWR, ENABLE );This is from Reference Manual:5.3.8 RCC APB1 peripheral reset register (RCC_A...

dimax by • Senior
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STM32F4 USART COMMUNICATION

Posted on February 06, 2013 at 10:06 Hi Guyz, it doesnot want to output, I have checked RCC and all initialization.. what am I still Missing? /** *****************************************************************************...

xtian by • Associate II
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  • 4 replies
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