Table of Contents
Raspberry Pi PICO
Dual core Arm Cortex M0 microcontroller designed to run MicroPython.
There are four varieties of this board produced by RPi. The differences are whether they come pre-installed with header pins and a debug socket and if they have a WiFi adapter on board.
Tools
Read this guide. Within is the setup procedure for development tools is as follows:
wget https://raw.githubusercontent.com/raspberrypi/pico-setup/master/pico_setup.sh sh pico_setup.sh
This will install the ARM compiler, OpenOCD, the SDK, examples, and various other things.
OpenOCD is built from source with the following options:
./configure --enable-ftdi --enable-sysfsgpio --enable-bcm2835gpio --enable-picoprobe
J-Link
Segger J-Link can be use to interact with the PICO via the debug port.
CORE 0
echo "exit" | /opt/JLink/JLinkExe -device RP2040_M0_0 -if swd -speed 4000 -autoconnect 1 -nogui 1 SEGGER J-Link Commander V7.82a (Compiled Oct 31 2022 11:25:49) DLL version V7.82a, compiled Oct 31 2022 11:25:22 Connecting to J-Link via USB...O.K. Firmware: J-Link EDU Mini V1 compiled Oct 21 2022 11:17:52 Hardware version: V1.00 J-Link uptime (since boot): 0d 00h 09m 41s S/N: 801011752 License(s): FlashBP, GDB USB speed mode: Full speed (12 MBit/s) VTref=3.259V Device "RP2040_M0_0" selected. Connecting to target via SWD ConfigTargetSettings() start J-Link script: ConfigTargetSettings() ConfigTargetSettings() end Found SW-DP with ID 0x0BC12477 DPIDR: 0x0BC12477 CoreSight SoC-400 or earlier Scanning AP map to find all available APs AP[1]: Stopped AP scan as end of AP map has been reached AP[0]: AHB-AP (IDR: 0x04770031) Iterating through AP map to find AHB-AP to use AP[0]: Core found AP[0]: AHB-AP ROM base: 0xE00FF000 CPUID register: 0x410CC601. Implementer code: 0x41 (ARM) Found Cortex-M0 r0p1, Little endian. FPUnit: 4 code (BP) slots and 0 literal slots CoreSight components: ROMTbl[0] @ E00FF000 [0][0]: E000E000 CID B105E00D PID 000BB008 SCS [0][1]: E0001000 CID B105E00D PID 000BB00A DWT [0][2]: E0002000 CID B105E00D PID 000BB00B FPB Cortex-M0 identified.
CORE 1
echo "exit" | /opt/JLink/JLinkExe -device RP2040_M0_1 -if swd -speed 4000 -autoconnect 1 -nogui 1 SEGGER J-Link Commander V7.82a (Compiled Oct 31 2022 11:25:49) DLL version V7.82a, compiled Oct 31 2022 11:25:22 Connecting to J-Link via USB...O.K. Firmware: J-Link EDU Mini V1 compiled Oct 21 2022 11:17:52 Hardware version: V1.00 J-Link uptime (since boot): 0d 00h 09m 48s S/N: 801011752 License(s): FlashBP, GDB USB speed mode: Full speed (12 MBit/s) VTref=3.260V Device "RP2040_M0_1" selected. Connecting to target via SWD ConfigTargetSettings() start J-Link script: ConfigTargetSettings() ConfigTargetSettings() end Found SW-DP with ID 0x0BC12477 DPIDR: 0x0BC12477 CoreSight SoC-400 or earlier Scanning AP map to find all available APs AP[1]: Stopped AP scan as end of AP map has been reached AP[0]: AHB-AP (IDR: 0x04770031) Iterating through AP map to find AHB-AP to use AP[0]: Core found AP[0]: AHB-AP ROM base: 0xE00FF000 CPUID register: 0x410CC601. Implementer code: 0x41 (ARM) Found Cortex-M0 r0p1, Little endian. FPUnit: 4 code (BP) slots and 0 literal slots CoreSight components: ROMTbl[0] @ E00FF000 [0][0]: E000E000 CID B105E00D PID 000BB008 SCS [0][1]: E0001000 CID B105E00D PID 000BB00A DWT [0][2]: E0002000 CID B105E00D PID 000BB00B FPB Cortex-M0 identified.
