STM32 MCUs Products

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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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SPI1 + MEMS, interface speed issue

Posted on October 24, 2013 at 10:19HelloI've discovered something quite interesting and annoying at the same time, let me share this in case someone stumbles upon a same issue.I use SPI1 in STM32F103RC and STM32F4Discovery to communicate with ADIS16...

mzielik by Associate
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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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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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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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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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Stack Pointer Alignment ? (printf float problem)

Posted on October 22, 2013 at 17:30Hello,I am observing variables of my application with IAR Terminal I/O while debugging.But when trying to printf() float values, like; printf(''%f '', myFloat); Terminal I/O gives %f as output.After checking over i...