Flashing Silverware With A MacBook

Silverware is acro firmware for toy quads such as the Eachine H8 mini, BWhoop B03, BWhoop B03 Pro, Eachine E011, and Eachine E011C (note that this is a BWhoop as far as Silverware is concerned). It allows you to adjust your PIDs and fly acro mode just like with Cleanflight and Betaflight.

Unfortunately, it’s mostly been easily available only to Windows users and it requires playing around with a bunch of embedded software development equipment and tools. However, with the release of Simon Ernst’s excellent Silverware Tools for macOS, Mac users are now able to flash Silverware to their toy quads. It still requires some technical and programming knowledge but it’s so much easier.

Parts and Equipment

Eachine E011 Toy Quadcopter
XTW ST-LINK V2 STM8 / STM32Link V2
Molex Picoblade 3-pin socket
Molex Picoblade 3-wire plug
Soldering iron
Soldering wire
Flux

Procedure

  1. Solder a 3-pin Molex Picoblade sockets on the FC. This will allow us to more easily update Silverware whenever we want to. We are intentionally not including V+. We will get power from a battery.

  2. Connect 3-wire Molex Picoblade plug to the socket on FC
  3. Connect wires to the ST-Link. We want to connect SWCLK on the FC to SWCLK on the ST-Link, SWDIO to SWDIO, and GND to GND. Do not connect the 3.3V or 5V pins. We will get power from a battery.

  4. Download Simon Ernst’s Silverware Tools for macOS. Install and follow the instructions on his site.
  5. Adjust Silverware settings. As of now, Silverware doesn’t have a configurator application. You’ll need to modify the code yourself. Start with config.h and pid.c in the src folder. For details see the documentation in NFE’s Silverware fork. Quick Tip: Select your quad and your transmitter in config.h and leave PIDs in pid.c alone.
  6. Once you’re done adjusting and saving settings, compile the Silverware code with Compiler. This will result in a firmware .hex file.
  7. Optionally, unlock your FC with Unlocker. Plug in a battery to your quad and run Unlocker immediately. According to Simon, some boards repurpose the connectors after a while.
  8. Flash Silverware to your FC with Flasher. Simply drop the firmware .hex file onto the Flasher tool. It will be flashed into the FC.
  9. That’s it! You can now go fly acro. Quick Tip: If you chose E011 and stock transmitter, the arm button is the right yaw trim button. 

Big thanks to Simon Ernst for his Silverware Tools for macOS and his help in getting everything to work for this guide. Thanks also to NotFastEnuf for his E011 fork of Silverware and, of course, Silver13 for Silverware.