Differences

This shows you the differences between two versions of the page.

--- busvoodoo [2017/12/22 18:30] – add pictures kingkevin
+++ busvoodoo [2017/12/22 22:35] – [alternatives] add picture kingkevin
@@ Line 87: / Line 87: @@
 The hardware is only designed for signals speeds up to 20 MHz.
 The signals can be driven using 3.3 V push-pull mode, or 1.6 to 5.5 V open-drain mode with 2 kOhm embedded pull-up resistors (can be increased using external resistor).
+{{ :busvoodoo:io_pinout.png?700|I/O pinout}}
 ^ protocol ^ support ^ comment ^
@@ Line 97: / Line 99: @@
 | LIN | hardware | |
 | ISO-7816 | hardware | |
-| RS-232 | hardware | with hardware flow control, only in full version |
-| RS-485 | hardware | no termination resistor, only in full version |
-| RS-422 | hardware | no termination resistor, only in full version |
-| CAN | hardware | no termination resistor, only in full version |
 | 1-Wire | software | |
 | MicroWire | software | |
@@ Line 111: / Line 109: @@
 | cJTAG | software | planned |
-note: the status of each protocol support is not documented yet (WiP)
+No matter which protocol you are using, the hardware has been designed to provide one additional UART port
-no matter which protocol you are using, the hardware has been designed to provide one additional UART port
+{{ :busvoodoo:mini_adapter_ports_rscan_pin.jpg?300|RS/CAN pinout}}
+The full version also supports additional higher voltage and differential protocols.
+^ protocol ^ support ^ comment ^
+| RS-232 | hardware | with hardware flow control, only in full version |
+| RS-485 | hardware | no termination resistor, only in full version |
+| RS-422 | hardware | no termination resistor, only in full version |
+| CAN | hardware | no termination resistor, only in full version |
+note: the status of each protocol support is not documented yet (WiP)
 ===== firmwares =====
@@ Line 133: / Line 140: @@
 ===== flashing =====
 The BusVoodoo is pretty much unbrickable.
@@ Line 143: / Line 151: @@
   - finally you can use the SWD pins on the programming connector to [[stm32f1xx#swj|flash using SWD]], provided you have and SWD adapter. This also allows to properly debug the firmware. :!: For some unknown reason sometimes after power-up the SWD adapter will not be able to find the micro-controller. Briefly reset the micro-controller by shorting RST to ground using tweezers (follow the RST indication on the board). From there on it will always be detected.
   - if none of the above methods work, the device is definitely bricked (or defective). congratulations.
+{{:busvoodoo:board_pinout_bottom.png?0x200|DFU contacts}}
+{{:busvoodoo:board_pinout_top.png?0x200|ICP and RST contacts}}
+{{:busvoodoo:mini_board_prog_pin.jpg?0x200|programing pinout}}
 ===== history =====
@@ Line 161: / Line 175: @@
 Probably every hardware hacker comes to the same point and develops his own solution, using parts he is familiar with, and suited for the tasks his is struggling with.
 And there probably never will be a perfect device capable of everything since the needs are different, but a bit of help is always welcome.
+{{ :busvoodoo:mini_bpv3.jpg?0x200|Bus Pirate v3b}}
 The closest alternative to the BusVoodoo is probably the [[http://dangerousprototypes.com/docs/Bus_Pirate|Bus Pirate]], and this is actually the device I used for a long time before I decided to make my own because the shortcomings piled up.