STM32 MCUs Products

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Forum Posts

Is it possible to disable GPIO?

Posted on October 09, 2013 at 21:15Hi all,Recently I'm trying to implement some power saving code.  In some condition (e.g. a specific digital input pin is ON), I'd like to enable all of my GPIO pins, while in the rest of the time I'd like to disabl...

STM32F37 I2C read data

Posted on October 24, 2013 at 13:38Hello,I'm using the STM32F373 microcontroller and wrote a simple function to read data from a MPU6050 gyro/accel on bus i2c.Problem is that when i try to read data - flag I2C_ISR_TXIS always equal RESET (not set).W...

yarreg by Associate
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  • 1 replies
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USART comm between 2 boards with debug break points

Posted on October 12, 2013 at 18:16I am using two STM32F407x boards.board 1 sends a data packet continuouslyboard 2 parses data continuouslyIn order to see if the data is being parsed correctly, I am adding break points in the code. The problem is t...

dibs by Associate II
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  • 5 replies
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Setting BFB2 from ST-Link Utility

Posted on October 23, 2013 at 20:39Chip : STM32F429/439.I tried to set BFB2 from ST-Link Utility. From the user manual, it should have a check item under Target/Option Bytes.I downloaded both v3.0 and V3.1. both missing the BFB2 check box. Is there ...

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tonyyu by Associate II
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  • 3 replies
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STM32F429I-DISCO USB FW Upgrade code issue

Posted on October 16, 2013 at 18:37STM32F429I-Discovery_FW_V1.0.0\Projects\FW_upgrade\src\usb_bsp.c PE1 (SDRAM NBL1) is NOT the over current pin, OTG_FS_OC is PC4 per the schematic #define HOST_OVRCURR_PORT                  GPIOE #define HOST_OVRCUR...

DAC offset problem

Posted on October 18, 2013 at 09:50HII have a small issue with the DAC in a stm32F103, there Is a small offset between DAC_DHR12R1 and DAC_DOR1 registersThe code is pretty simple:DAC_InitStructure.DAC_Trigger = DAC_Trigger_Software;DAC_InitStructure...

spa23 by Associate III
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STM32F2 GPIO glitch-free startup

Posted on October 23, 2013 at 01:51Are the GPIO of the STM32F2 guaranteed to be high-impedance, glitch-free during power ramp-up? #stm32f2-gpio-start-up-glitch

Endpoint problem.

Posted on October 30, 2011 at 08:01Hello,I have STM3210C-EVAL board. The HID mouse example is working well.But, if I change the endpoint from 0x81 to 0x82, it doesn't work.In addition, for TX2 buffer I changed buffer size to 128 like#define TX2_FIFO...

tonykwon by Associate
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