Differences

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

--- busvoodoo [2017/12/15 08:42] – add firmwares kingkevin
+++ busvoodoo [2017/12/15 11:08] – [firmwares] kingkevin
@@ Line 66: / Line 66: @@
 ===== protocols =====
+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).
+^ protocol ^ support ^ comment ^
+| UART | hardware | 2 UARTs available, 1 with hardware flow control |
+| SPI | hardware | with multiple Chip Select |
+| I²C | hardware | with embedded pull-up resistors |
+| I²S | hardware | with master clock |
+| SD/eMMC | hardware | with 1 or 4 data lines |
+| SMBus | hardware | with embedded pull-up resistors |
+| 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 | |
+| WS2812b | sofware | dedicated LED light protocol |
+| DHT11/DHT22 | software | dedicated humidity/temperature sensor protocol |
+| TM1637 | software | dedicated 7-segment display protocol |
+| IR | software | various InfraRed protocols, planned |
+| JTAG | software | planned |
+| SWD | software | planned |
+| 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
 ===== firmwares =====
+Since the BusVoodoo uses native USB, it can be [[flashing|re-flashed]] to clone other USB device.
+This allows to convert the BusVoodoo into a dedicated/task specific adapter.
+alternative firmwares:
+  * USBtinyISP or AVRISP to program Atmel AVR MCUs
+  * [[https://github.com/blacksphere/blackmagic/wiki|Black Magic Probe]] for JTAG and SWD programming
+  * PICkit2 to program PIC MCUs, using the high voltage output of the full version
+  * AVR Dragon to rescue Atmal AVR MCUs using the [[http://www.atmel.com/webdoc/avrdragon/avrdragon.hvsp_description.html|High Voltage Serial Programming (HSVP)]], using the high voltage output of the full version
+note: the alternative firmware are not implemented yet
 ===== history =====