rp2350

# RP2350 Dev Board

## Setup

1. `brew install zig open-ocd arm-none-eabi-gdb`

2. Test

If open-ocd doesn't work build from source,

`brew remove open-ocd`

`brew install pkg-config autoconf automake texinfo libfdti hidpi jimtcl`

`untar docs/openocd.tar.gz`

`./boostrap`

`./configure --enable-target=rp2350 --enable-interface=jtag`

`make`

`sudo make install`

## Run

1. `zig build`

2. `picotool load -x zig-out/firmware/rp2350.uf2 -f`

# Start OCD Server

`sudo openocd -s tcl -f interface/cmsis-dap.cfg -f target/rp2350.cfg -c "adapter speed 5000"sudo openocd -s tcl -f interface/cmsis-dap.cfg -f target/rp2350.cfg -c "adapter speed 5000"`

# Flash OCD Program

`sudo openocd -f interface/cmsis-dap.cfg -f target/rp2350.cfg -c "adapter speed 5000" -c "program zig-out/firmware/rp2350.elf verify reset exit"`

```c

// Flash allocation map 4MB for pico 2W

//

// |------------------------------------------------|

// |      A         | B |     C     |       D       |

// |----------------|---|-----------|---------------|

// |      1024K     |64K|  1472K    |     1536K     |

// |------------------------------------------------|

//                  |----------- flash.c -----------|

// |------ 1MB -----|------------- 3MB -------------|

// |---------------------- 4MB ---------------------|

//

// - A : binary (firmware)

// - B : storage (key-value database)

// - C : user program (js)

// - D : file system (lfs)

// (Total : 4MB)

// file system on flash (1024K)

// - sector base : 400

// - sector count : 384

// - use block device : new Flash(400, 384)

```