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RPi Pico port (#42)

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based on work of @jgpeiro
https://forum.lvgl.io/t/build-lvgl-for-raspberry-pi-pico/5543 .

* add brief documentation on building the port

Related PR: https://github.com/lvgl/lv_binding_micropython/pull/174
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eudoxos 2021-09-07 01:13:07 +02:00 committed by GitHub
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9
README.md
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@ -58,6 +58,15 @@ For more details please refer to [Micropython ESP32 README](https://github.com/m
Refer to the README of the `lvgl_javascript` branch: https://github.com/lvgl/lv_micropython/tree/lvgl_javascript#for-javascript-port Refer to the README of the `lvgl_javascript` branch: https://github.com/lvgl/lv_micropython/tree/lvgl_javascript#for-javascript-port
### For Raspberry Pi Pico port
This port uses [Micropython infrastructure for C modules](https://docs.micropython.org/en/latest/develop/cmodules.html#compiling-the-cmodule-into-micropython) and `USER_C_MODULES` must be given:
```
cd ports/rp2
make USER_C_MODULES=../../lv_bindings/bindings.cmake
```
## Super Simple Example ## Super Simple Example
First, LVGL needs to be imported and initialized First, LVGL needs to be imported and initialized

35
ports/rp2/mpconfigport.h
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@ -33,6 +33,9 @@
#include "mpconfigboard.h" #include "mpconfigboard.h"
#define MICROPY_PY_LVGL (1)
#define MICROPY_PY_LODEPNG (1)
// Board and hardware specific configuration // Board and hardware specific configuration
#define MICROPY_HW_MCU_NAME "RP2040" #define MICROPY_HW_MCU_NAME "RP2040"
#define MICROPY_HW_ENABLE_UART_REPL (0) // useful if there is no USB #define MICROPY_HW_ENABLE_UART_REPL (0) // useful if there is no USB
@ -162,6 +165,22 @@ extern const struct _mp_obj_module_t mp_module_onewire;
extern const struct _mp_obj_module_t mp_module_rp2; extern const struct _mp_obj_module_t mp_module_rp2;
extern const struct _mp_obj_module_t mp_module_uos; extern const struct _mp_obj_module_t mp_module_uos;
extern const struct _mp_obj_module_t mp_module_utime; extern const struct _mp_obj_module_t mp_module_utime;
extern const struct _mp_obj_module_t mp_module_lvgl;
extern const struct _mp_obj_module_t mp_module_lodepng;
#if MICROPY_PY_LVGL
#define MICROPY_PORT_LVGL_DEF \
{ MP_OBJ_NEW_QSTR(MP_QSTR_lvgl), (mp_obj_t)&mp_module_lvgl },
#else
#define MICROPY_PORT_LVGL_DEF
#endif
#if MICROPY_PY_LODEPNG
#define MICROPY_PORT_LODEPNG_DEF { MP_OBJ_NEW_QSTR(MP_QSTR_lodepng), (mp_obj_t)&mp_module_lodepng },
#else
#define MICROPY_PORT_LODEPNG_DEF
#endif
#define MICROPY_PORT_BUILTIN_MODULES \ #define MICROPY_PORT_BUILTIN_MODULES \
{ MP_OBJ_NEW_QSTR(MP_QSTR_machine), (mp_obj_t)&mp_module_machine }, \ { MP_OBJ_NEW_QSTR(MP_QSTR_machine), (mp_obj_t)&mp_module_machine }, \
@ -169,8 +188,24 @@ extern const struct _mp_obj_module_t mp_module_utime;
{ MP_OBJ_NEW_QSTR(MP_QSTR__rp2), (mp_obj_t)&mp_module_rp2 }, \ { MP_OBJ_NEW_QSTR(MP_QSTR__rp2), (mp_obj_t)&mp_module_rp2 }, \
{ MP_ROM_QSTR(MP_QSTR_uos), MP_ROM_PTR(&mp_module_uos) }, \ { MP_ROM_QSTR(MP_QSTR_uos), MP_ROM_PTR(&mp_module_uos) }, \
{ MP_ROM_QSTR(MP_QSTR_utime), MP_ROM_PTR(&mp_module_utime) }, \ { MP_ROM_QSTR(MP_QSTR_utime), MP_ROM_PTR(&mp_module_utime) }, \
MICROPY_PORT_LVGL_DEF \
MICROPY_PORT_LODEPNG_DEF \
#if MICROPY_PY_LVGL
#ifndef MICROPY_INCLUDED_PY_MPSTATE_H
#define MICROPY_INCLUDED_PY_MPSTATE_H
#include "lib/lv_bindings/lvgl/src/misc/lv_gc.h"
#undef MICROPY_INCLUDED_PY_MPSTATE_H
#else
#include "lib/lv_bindings/lvgl/src/misc/lv_gc.h"
#endif
#else
#define LV_ROOTS
#endif
#define MICROPY_PORT_ROOT_POINTERS \ #define MICROPY_PORT_ROOT_POINTERS \
LV_ROOTS \
void *mp_lv_user_data; \
const char *readline_hist[8]; \ const char *readline_hist[8]; \
void *machine_pin_irq_obj[30]; \ void *machine_pin_irq_obj[30]; \
void *rp2_pio_irq_obj[2]; \ void *rp2_pio_irq_obj[2]; \