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nrf: Add support for DFU bootloader 

From https://github.com/fanoush/ds-d6/blob/c4579ff25166722566c1b9251a20f99027972
588/micropython/micropython/DS-D6-micropython.diff

[daniel@redfelineninja.org.uk: Seperated out from the rest of the DS-D6
support]
pull/1/head
fanoush 2020-01-17 19:18:54 +00:00 committed by Daniel Thompson
parent 1f37194730
commit 5a607e23bd
2 changed files with 32 additions and 0 deletions
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10
ports/nrf/boards/nrf52832_512k_64k_bldr78.ld 100644
View File

@ -0,0 +1,10 @@
/*
GNU linker script for NRF52832
*/
_flash_size = 0x78000; /* bootloader starts at 0x78000 */
_ram_size = 64K;
/* produce a link error if there is not this amount of RAM for these sections */
_stack_size = 8K;
_minimum_heap_size = 32K;

22
ports/nrf/modules/machine/modmachine.c
View File

@ -145,6 +145,24 @@ STATIC mp_obj_t machine_reset(void) {
}
MP_DEFINE_CONST_FUN_OBJ_0(machine_reset_obj, machine_reset);
#if MICROPY_PY_MACHINE_DFU_BOOTLOADER
STATIC mp_obj_t machine_enter_ota_dfu(void) {
const int DFU_MAGIC_OTA_RESET = 0xa8;
NRF_POWER->GPREGRET = DFU_MAGIC_OTA_RESET;
NVIC_SystemReset();
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_0(machine_enter_ota_dfu_obj, machine_enter_ota_dfu);
STATIC mp_obj_t machine_enter_serial_dfu(void) {
const int DFU_MAGIC_SERIAL_ONLY_RESET = 0x4e;
NRF_POWER->GPREGRET = DFU_MAGIC_SERIAL_ONLY_RESET;
NVIC_SystemReset();
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_0(machine_enter_serial_dfu_obj, machine_enter_serial_dfu);
#endif
STATIC mp_obj_t machine_soft_reset(void) {
pyexec_system_exit = PYEXEC_FORCED_EXIT;
nlr_raise(mp_obj_new_exception(&mp_type_SystemExit));
@ -193,6 +211,10 @@ STATIC const mp_rom_map_elem_t machine_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_umachine) },
{ MP_ROM_QSTR(MP_QSTR_info), MP_ROM_PTR(&machine_info_obj) },
{ MP_ROM_QSTR(MP_QSTR_reset), MP_ROM_PTR(&machine_reset_obj) },
#if MICROPY_PY_MACHINE_DFU_BOOTLOADER
{ MP_ROM_QSTR(MP_QSTR_enter_ota_dfu), MP_ROM_PTR(&machine_enter_ota_dfu_obj) },
{ MP_ROM_QSTR(MP_QSTR_enter_serial_dfu), MP_ROM_PTR(&machine_enter_serial_dfu_obj) },
#endif
{ MP_ROM_QSTR(MP_QSTR_soft_reset), MP_ROM_PTR(&machine_soft_reset_obj) },
{ MP_ROM_QSTR(MP_QSTR_enable_irq), MP_ROM_PTR(&machine_enable_irq_obj) },
{ MP_ROM_QSTR(MP_QSTR_disable_irq), MP_ROM_PTR(&machine_disable_irq_obj) },