PS: It is hard to believe that this board has an Cortex M3 with USB and RTC clock for this price, but it is true. Here at mbed, Zoltan Hudak has also a great coverage of the STM32F103C8T6 board. I have also a STM32F103C8T6 give away board which I am happy to spend for you. Mouser offers inventory, pricing, & datasheets for Maxim Integrated Real Time Clock. I have documented connecting the F103 with pictures and a wiki article, and I happy to share it when you like to use the F103 board. Maxim Integrated Real Time Clock are available at Mouser Electronics. Again using the compiled mbed online bin files or GCC compiled files. bin file, this works great even the cheap F103 has only 64kB flash.Īnother options is to use openocd which allows to program and debug (gcc) the board as well many other mbed boards. Within mbed, I switched the the F103 Nucleo TARGET and programming via the mbed online.
MAXIM TIME CLOCK PLUS
The F103 board has at the small end the SWD/SWCK/GND/VDD Connectors, I connected this and the F103 Reset line to the Nucleo CN4 plus the RX/TX lines to the Nucleo CN3. Since I don't have it myself I can't do much to help :). You can also of course try fiddling around with it yourself to figure out why it does not work. Since it should work properly you can make a bug report. I don't know why it isn't working properly for you. So it should do the check if it is already enabled. I quickly checked, by default RTC_LSI is not set on the F103. Here was one with same problem before: (I remembered him asking, that is why I didn't know how much of that was implemented). I☬ RTC, W/T CHARGER, 3.3V, MICROSOP 8 Date Format: DD: MM: YYYY Clock Format: HH.
MAXIM TIME CLOCK SOFTWARE
I☬ Real-Time Clock with Trickle Charger Offers Software Clock Calibration. Octopart is the worlds source for DS1340U-33+ availability. You can also make a bugreport/feature request there. Find the best pricing for Maxim Integrated DS1340U-33+ by comparing bulk discounts from 6 distributors. In the online compiler you can import mbed-dev. Since I don't have an F1 myself I cannot try adding it sadly Peter, yes that is possible.
MAXIM TIME CLOCK SERIES
For all devices, the date at the end of the month is automatically adjusted for months with fewer than 31 days, including correction for leap years. The DS12C887 adds a century byte at address 32h.
The DS12887 integrates a quartz crystal and lithium energy source into a 24-pin encapsulated DIP package. The devices provide a real-time clock/calendar, one time-of-day alarm, three maskable interrupts with a common interrupt output, a programmable square wave, and 114 bytes of battery-backed static RAM (113 bytes in the DS12C887 and DS12C887A). The DS12885, DS12887, and DS12C887 real-time clocks (RTCs) are designed to be direct replacements for the DS1285 and DS1287.