RTC drifting - a lot!
I have bought a STL8L Discovery kit and have installed the example for showing a clock: RTC using LSE - but it drift appx. 5 seconds per minute.Seems like a simple 555 timer - or a cheap old analog clock - is more precise.
Others: hardware and software
Discuss hardware and software design challenges, including NOR flash storage, OTA updates, component ID, and thermal management.
Forum Posts
Resolved! Hi, VN820-E (Pentawatt -5 pin Package from ST ) IC part availability status ,EOL and stock available details
Hi,We are working for obsolesce management project for our existing medical project.In this we are using VN820-E (Pentawatt -5 pin Package from ST ) IC to driver the load.Let us want to know part availability status ,EOL and stock available details
Resolved! External clock does not work when programmed from STVP
Hi, I want to use external clock 16 MHz.So I implemented the following code.CLK_ClockSwitchConfig(CLK_SWITCHMODE_AUTO, CLK_SOURCE_HSE, DISABLE, CLK_CURRENTCLOCKSTATE_ENABLE);It was confirmed that 16MHz oscillated when programmed from STVD.However, wh...
Vlp c4 chn741
I can not find this item in the market. Can anyone help me on equivelent product?
Which Pin is triggering an interrupt How do I count them not multiple time?
Hello everybody,how can I count which pin triggers an interrupt, but not multiple times? I have written the following ISR. INTERRUPT_HANDLER(EXTI_PORTB_IRQHandler, 4) { data = (uint8_t)GPIOB->IDR& 0xF; if((GPIO_PIN_0 & data )== GPIO_PIN_0) { co...
Looking for older versions of STSAFE-A1xx middleware
Hi there! I am looking for older versions of STSAFE-A1xx middleware which apparently is very hard to find as ST does NOT provide download options for older versions for whatever reason. Specifically, I am looking for version 3.0.0 or older; these cam...
The idea of a chip with pins in the form of a plug.
The big problem is the microcontroller pins, which often break and make the chip unusable.My idea is to use the terminals of the microcontroller as a plug, on which you can immediately put the socket on and attach the microcontroller with screws. In ...
