![]() ![]() In order to flash your Rust application onto your Pico target board, you must first install the GNU Debugger (gdb) and OpenOCD. Also note that in the photo of my breadboard wiring, I use the (+) and (-) columns for convenience, otherwise I literally follow the above wiring summary. Note: See this pin diagram (also shown above) that shows a Pico board pin diagram containing both pin numbers and pin names. Here’s a written summary of how to wire the two Pico boards to each other, referring to the Pico board on the left as Pico A and the one on the right as Pico B :Ĭonnect Pico B GND (Pin 38) to Pico A GND (Pin 38)Ĭonnect Pico B VSYS (Pin 39) to Pico A VSYS (Pin 39)Ĭonnect Pico B UART0_TX (Pin 1) to Pico A UART1_RX (Pin 7)Ĭonnect Pico B UART0_RX (Pin 2) to Pico A UART1_TX (Pin 6)Ĭonnect Pico B SWCLK to Pico A I2C1 SDA (Pin 4)Ĭonnect Pico B SWDIO to Pico A I2C1 SCL (Pin 5) If you’re looking for some jumper wires like what I used you may order them from SparkFun here: ![]() As you can see in Figure 1, having the soldered headers attached to both Pico boards makes it much easier to wire together for flashing and debugging because you can use a breadboard to make all of the pin connections very straightforward. ![]()
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