Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
boards:vcc-gnd [2015/03/22 14:04] darron [vcc-gnd STM32F103C8T6] |
boards:vcc-gnd [2018/05/27 14:17] darron [Power] |
||
---|---|---|---|
Line 8: | Line 8: | ||
These are cheap development boards with 64KB flash and 20KB ram. | These are cheap development boards with 64KB flash and 20KB ram. | ||
- | The firmware that ships on these devices blinks the LED on PC13 and outputs | + | The firmware that ships on these devices blinks the LED on PC13 and sends a time |
string on the UART at 9600 baud. | string on the UART at 9600 baud. | ||
Line 43: | Line 43: | ||
Power is supplied on the USB socket which feeds a 3V3 LDO regulator. | Power is supplied on the USB socket which feeds a 3V3 LDO regulator. | ||
- | It is possible to power the device with 3V3 on the 3V3 pin or 5V on the 5V pin (to feed to LDO) if USB is disconnected. | + | It is possible to power the device with 3V3 on the 3V3 pin or 5V on the 5V pin (to feed the LDO) if USB is disconnected. |
=== LED demo === | === LED demo === | ||