STM32 MCUs products

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Voltage scaling: way to set 1.5V/16MHz

Posted on July 18, 2014 at 15:46I would like to set a Vcore voltage range to 1.5V and then back to default 1.8V on STM32L1xx for some code execution. I did not found anywhere the correct procedure, what everything has to be change, but generally it ...

adam23 by Associate II
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Problem with External Interrupt

Posted on August 23, 2014 at 09:13Hello Sir,I'm facing the problem with external interrupt while using debugger. I'm using PC14 as external input key and PA15 as normal input key. So,when I was using debugger if I pressed the normal key(PA15) it is ...

raja81a by Associate II
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  • 2 replies
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STM32F3 (stm32f303vct6) + i2c + CMSIS

Posted on August 18, 2014 at 17:08 I'm trying to connect this port to i2c standard PCF8574 I/O expander. And I can't get it to work. My GPIO init code: RCC->APB1ENR |= ( RCC_APB1ENR_I2C1EN | RCC_APB1ENR_I2C2EN ); RCC->AHBEN...

kudlata by Associate II
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  • 5 replies
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USB Device Library documentation

Posted on August 24, 2014 at 14:11Hi,Does any documentation or doxygen exists for USB device library (exacly for HID)?I try to deal with that library but I couldn't find any documentation which might explain me what are proper function used for.Than...

STM32 Cube and MDK-ARM, CMSIS-Driver API 2.02, etc

Posted on August 24, 2014 at 11:44According to http://www.keil.com/appnotes/files/apnt_266.pdf ST going on STM32 Cube tighter integration with MDK-ARM, and support CMSIS-API Driver 2.02. You do not know when it will be released version 2 with suppor...

asrock70 by Associate II
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STM32F429 DISCO LSE wont work

Posted on August 22, 2014 at 10:37Hi, I'm compiling Demonstration on STM32F429I-Discovery_FW_V1.0.1 was work fine. Now I fixd RTC_Configuration() on rtc.c for 32.768kHz LSE driven as below:int8_t RTC_Configuration(void) {  RTC_Error = 0;   /* Enable...

yoshi by Associate II
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  • 3 replies
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CAN Baud rate

Posted on February 20, 2012 at 04:11 Im trying to use the CAN interface on the STM32F4 discovery board. I am using the STM code sample which says it configures it to 1Mbit baud rate but this doesnt seem to be the case, with an oscilloscope hooke...

pisaacs9 by Associate II
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  • 12 replies
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Mistake in 32F429IDISCOVERY B-01 silkscreen?

Posted on August 24, 2014 at 00:42Hi ST.I am not quite sure if I have discovered a mistake on the silkscreen of your 32F429IDISCOVERY board - at least I would like to get it clarified myself.I am about to test and use the LCD in RGB mode using the L...

Controller to read wav files from SD CARD

Posted on August 19, 2014 at 15:45I need a little help to choose the right device.I would build a digital audio player with the following characteristics:  - it should read data from SD card only (up to 32GB size)  - SD card will be formatted FAT32 ...