STM32 MCUs Products

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Forum Posts

The solution for a 800×480 LCD based on STM32

Posted on March 07, 2014 at 10:40Hi everyone,    I'd like to choise STM32 for a HMI case, whoes main requirement was a TFT LCD of 800*480. There were 2 idea: 1) STM32F1 + RA7785 2) STM32F429 Which was the better? Everybody could give me some suggest...

albhuang by Associate II
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  • 1 replies
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Stm32 LIN driver

Posted on November 07, 2013 at 16:50 Hello everybody. I need to use LIN communication with stm32 mikrocontroller. I see the std lib have function for lin communication, but the comments in the usart.c file is strange. The lin communi...

totti001 by Associate II
  • 541 Views
  • 1 replies
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STM32F401 USB without HSE

Posted on March 05, 2014 at 12:59I'm looking at making a device with the STM32F401, and I'm wondering if USB on it can function without a HSE crystal?The clock diagrams seem to imply that PLL48 can work off of HSI, but the reference implies that USB...

gw by Associate II
  • 1554 Views
  • 5 replies
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Change the speed of GPIO

Posted on March 06, 2014 at 12:41Hi there, I want to change the speed of GPIO for STM32f4 discovery board. The maximun speed I can get on specified pin is 6 MHz and I want to get 20 Mhz. we know that the discovery board has external clock circuit to...

ali2003a by Associate II
  • 1008 Views
  • 6 replies
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Reset of Timer

Posted on March 07, 2014 at 03:15 Hi , I have a timer programmed to monitor a timeout event using timer interrupt(every 100ms). If the event occurs within the time (100ms) i would like to refresh the timeout. Is the below code a...

stm32f405, help on jtag programming

Posted on March 06, 2014 at 00:08Dear all, i am trying to program a stm32f405 just soldered on a prototype pcb. Seems jtag TAP is accesible, but for some reason i cannot halt the cpu: Open On-Chip Debugger 0.7.0 (2013-08-04-10:13) Licensed under GNU...

Angelo1 by Associate II
  • 740 Views
  • 2 replies
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InitStructure Significantly Changes USART Output

Posted on March 05, 2014 at 23:37Hi all, I'm hoping this is an easy one and just something I am missing. A google didn't return anything obviously relating to my problem. I have some messy code that sets up my USART peripheral correctly. I have used...

i_ by Associate II
  • 1947 Views
  • 11 replies
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Analog watchdog/STM32F4

Posted on March 06, 2014 at 09:37Hi I still could not understand the operation of the analog watchdog. For example I want to protect a short ciruit in the H-bridge ; so I put the shunt resistor and set the limit of the maximum current ; for exampl...