This is the carrier board for the Waveshare Core407v. It performs breakout functions of all of the standard ports as per the design based on the STM32 Discovery.
The circuit is mostly identical to what was drawn previously. The following parts are different:
This header supplies +5V, 0V, USB data and the ID state. Normally it will be connected to the USB module by a short cable.
The original J16 functionality is preserved, but extra pins are available on an IDC16 header. These include the Reset signal and pins normally controlling LEDs. This header is normally connected to the RES-SD module.
This jumper replaces the “bootloader” functionality of the Discovery board's blue button. It could be wired to an external panel control if needed.
|2||1k 5%||THT||R11, R13|
|2||2k2 5%||THT||R7A, R8A|
|2||2k2 5%||1206||R7B, R8B|
|2||10k||6*5mm vert||P1, P2|
|3||100n||1206||C1A, C1B, C2|
|2||74HCT125||SOIC||IC1A, IC1B||595-SN74HCT125DR||Ensure HCT|
|1||1*5||male||J1||or wire directly|
|2||2*25||female||solder before male headers|
|1||Waveshare Core 407v|
v1.0: first release.
The following build order is suggested:
Currently the design is © 2017 antilog devices with all rights reserved; all documentation is CC BY-NC-SA 3.0.