nrf: add support for nrf52833

This adds preliminary support for the nRF52833, which is a variant of
the nRF52840 with half the RAM, half the flash, and fewer peripherals.

Signed-off-by: Sean Cross <sean@xobs.io>
simmel
Sean Cross 2 years ago
parent 4ad1cbeea3
commit 3289d33068
  1. 5
      ports/nrf/Makefile
  2. 4
      ports/nrf/boards/common.template.ld
  3. 12
      ports/nrf/common-hal/microcontroller/__init__.c
  4. 184
      ports/nrf/device/nrf52/startup_nrf52833.c
  5. 3
      ports/nrf/ld_defines.c
  6. 17
      ports/nrf/mpconfigport.h
  7. 14
      ports/nrf/mpconfigport.mk
  8. 4
      ports/nrf/nrfx_config.h
  9. 72
      ports/nrf/peripherals/nrf/nrf52833/pins.c
  10. 73
      ports/nrf/peripherals/nrf/nrf52833/pins.h
  11. 50
      ports/nrf/peripherals/nrf/nrf52833/power.c
  12. 5
      ports/nrf/peripherals/nrf/pins.h

@ -182,6 +182,11 @@ SRC_C += \
lib/tinyusb/src/portable/nordic/nrf5x/dcd_nrf5x.c
endif
ifeq ($(MCU_SUB_VARIANT),nrf52833)
SRC_C += \
lib/tinyusb/src/portable/nordic/nrf5x/dcd_nrf5x.c
endif
ifeq ($(CIRCUITPY_NETWORK),1)
CFLAGS += -DMICROPY_PY_NETWORK=1

@ -5,7 +5,7 @@
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x100000 /* entire flash, 1 MiB */
FLASH (rx) : ORIGIN = 0x00000000, LENGTH = ${FLASH_SIZE} /* entire flash */
/* nRF SoftDevice */
FLASH_MBR (rx) : ORIGIN = ${MBR_START_ADDR}, LENGTH = ${MBR_SIZE}
FLASH_SD (rx) : ORIGIN = ${SD_FLASH_START_ADDR}, LENGTH = ${SD_FLASH_SIZE}
@ -23,7 +23,7 @@ MEMORY
/* To measure the minimum required amount of memory for given configuration, set this number
high enough to work and then check the mutation of the value done by sd_ble_enable. */
SPIM3_RAM (rw) : ORIGIN = 0x20000000 + ${SOFTDEVICE_RAM_SIZE}, LENGTH = ${SPIM3_BUFFER_SIZE}
RAM (xrw) : ORIGIN = 0x20000000 + ${SOFTDEVICE_RAM_SIZE} + ${SPIM3_BUFFER_SIZE}, LENGTH = 256K - ${SOFTDEVICE_RAM_SIZE} -${SPIM3_BUFFER_SIZE}
RAM (xrw) : ORIGIN = 0x20000000 + ${SOFTDEVICE_RAM_SIZE} + ${SPIM3_BUFFER_SIZE}, LENGTH = ${RAM_SIZE} - ${SOFTDEVICE_RAM_SIZE} -${SPIM3_BUFFER_SIZE}
}

@ -168,5 +168,17 @@ STATIC const mp_rom_map_elem_t mcu_pin_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR_P1_14), MP_ROM_PTR(&pin_P1_14) },
{ MP_ROM_QSTR(MP_QSTR_P1_15), MP_ROM_PTR(&pin_P1_15) },
#endif
#ifdef NRF52833
{ MP_ROM_QSTR(MP_QSTR_P1_00), MP_ROM_PTR(&pin_P1_00) },
{ MP_ROM_QSTR(MP_QSTR_P1_01), MP_ROM_PTR(&pin_P1_01) },
{ MP_ROM_QSTR(MP_QSTR_P1_02), MP_ROM_PTR(&pin_P1_02) },
{ MP_ROM_QSTR(MP_QSTR_P1_03), MP_ROM_PTR(&pin_P1_03) },
{ MP_ROM_QSTR(MP_QSTR_P1_04), MP_ROM_PTR(&pin_P1_04) },
{ MP_ROM_QSTR(MP_QSTR_P1_05), MP_ROM_PTR(&pin_P1_05) },
{ MP_ROM_QSTR(MP_QSTR_P1_06), MP_ROM_PTR(&pin_P1_06) },
{ MP_ROM_QSTR(MP_QSTR_P1_07), MP_ROM_PTR(&pin_P1_07) },
{ MP_ROM_QSTR(MP_QSTR_P1_08), MP_ROM_PTR(&pin_P1_08) },
{ MP_ROM_QSTR(MP_QSTR_P1_09), MP_ROM_PTR(&pin_P1_09) },
#endif
};
MP_DEFINE_CONST_DICT(mcu_pin_globals, mcu_pin_globals_table);

@ -0,0 +1,184 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017 Glenn Ruben Bakke
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdint.h>
extern uint32_t _estack;
extern uint32_t _sidata;
extern uint32_t _sdata;
extern uint32_t _edata;
extern uint32_t _sbss;
extern uint32_t _ebss;
typedef void (*func)(void);
#define _start main
extern void _start(void) __attribute__((noreturn));
extern void SystemInit(void);
void Default_Handler(void) {
while (1);
}
void Reset_Handler(void) {
uint32_t * p_src = &_sidata;
uint32_t * p_dest = &_sdata;
while (p_dest < &_edata) {
*p_dest++ = *p_src++;
}
uint32_t * p_bss = &_sbss;
uint32_t * p_bss_end = &_ebss;
while (p_bss < p_bss_end) {
*p_bss++ = 0ul;
}
SystemInit();
_start();
}
void NMI_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
void HardFault_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
void MemoryManagement_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
void BusFault_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
void UsageFault_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
void SVC_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
void DebugMon_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
void PendSV_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
void SysTick_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
void POWER_CLOCK_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void RADIO_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void UARTE0_UART0_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void NFCT_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void GPIOTE_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void SAADC_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void TIMER0_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void TIMER1_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void TIMER2_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void RTC0_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void TEMP_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void RNG_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void ECB_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void CCM_AAR_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void WDT_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void RTC1_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void QDEC_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void COMP_LPCOMP_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void SWI0_EGU0_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void SWI1_EGU1_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void SWI2_EGU2_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void SWI3_EGU3_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void SWI4_EGU4_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void SWI5_EGU5_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void TIMER3_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void TIMER4_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void PWM0_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void PDM_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void MWU_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void PWM1_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void PWM2_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void SPIM2_SPIS2_SPI2_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void RTC2_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void I2S_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void FPU_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void USBD_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void UARTE1_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void PWM3_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
void SPIM3_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler")));
const func __Vectors[] __attribute__ ((used, section(".isr_vector"))) = {
(func)&_estack,
Reset_Handler,
NMI_Handler,
HardFault_Handler,
MemoryManagement_Handler,
BusFault_Handler,
UsageFault_Handler,
0,
0,
0,
0,
SVC_Handler,
DebugMon_Handler,
0,
PendSV_Handler,
SysTick_Handler,
/* External Interrupts */
POWER_CLOCK_IRQHandler,
RADIO_IRQHandler,
UARTE0_UART0_IRQHandler,
SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQHandler,
SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQHandler,
NFCT_IRQHandler,
GPIOTE_IRQHandler,
SAADC_IRQHandler,
TIMER0_IRQHandler,
TIMER1_IRQHandler,
TIMER2_IRQHandler,
RTC0_IRQHandler,
TEMP_IRQHandler,
RNG_IRQHandler,
ECB_IRQHandler,
CCM_AAR_IRQHandler,
WDT_IRQHandler,
RTC1_IRQHandler,
QDEC_IRQHandler,
COMP_LPCOMP_IRQHandler,
SWI0_EGU0_IRQHandler,
SWI1_EGU1_IRQHandler,
SWI2_EGU2_IRQHandler,
SWI3_EGU3_IRQHandler,
SWI4_EGU4_IRQHandler,
SWI5_EGU5_IRQHandler,
TIMER3_IRQHandler,
TIMER4_IRQHandler,
PWM0_IRQHandler,
PDM_IRQHandler,
0,
0,
MWU_IRQHandler,
PWM1_IRQHandler,
PWM2_IRQHandler,
SPIM2_SPIS2_SPI2_IRQHandler,
RTC2_IRQHandler,
I2S_IRQHandler,
FPU_IRQHandler,
USBD_IRQHandler,
UARTE1_IRQHandler,
0,
0,
0,
0,
PWM3_IRQHandler,
0,
SPIM3_IRQHandler,
};

@ -9,6 +9,9 @@
// The next line is a marker to start looking for definitions. Lines above the next line are ignored.
// START_LD_DEFINES
/*FLASH_SIZE=*/ FLASH_SIZE;
/*RAM_SIZE=*/ RAM_SIZE;
/*MBR_START_ADDR=*/ MBR_START_ADDR;
/*MBR_SIZE=*/ MBR_SIZE;

@ -41,6 +41,16 @@
#ifdef NRF52840
#define MICROPY_PY_SYS_PLATFORM "nRF52840"
#define FLASH_SIZE (0x100000) // 1MiB
#define RAM_SIZE (0x40000) // 256 KiB
// Special RAM area for SPIM3 transmit buffer, to work around hardware bug.
// See common.template.ld.
#define SPIM3_BUFFER_SIZE (8192)
#endif
#ifdef NRF52833
#define MICROPY_PY_SYS_PLATFORM "nRF52833"
#define FLASH_SIZE (0x80000) // 512 KiB
#define RAM_SIZE (0x20000) // 128 KiB
// Special RAM area for SPIM3 transmit buffer, to work around hardware bug.
// See common.template.ld.
#define SPIM3_BUFFER_SIZE (8192)
@ -112,14 +122,15 @@
// Define these regions starting down from the bootloader:
// Bootloader values from https://github.com/adafruit/Adafruit_nRF52_Bootloader/blob/master/src/linker/s140_v6.ld
#define BOOTLOADER_START_ADDR (0x000F4000)
#define BOOTLOADER_START_ADDR (FLASH_SIZE - BOOTLOADER_SIZE - BOOTLOADER_SETTINGS_SIZE - BOOTLOADER_MBR_SIZE)
#define BOOTLOADER_MBR_SIZE (0x1000) // 4kib
#define BOOTLOADER_SIZE (0xA000) // 40kiB
#define BOOTLOADER_SETTINGS_START_ADDR (0x000FF000)
#define BOOTLOADER_SETTINGS_START_ADDR (FLASH_SIZE - BOOTLOADER_SETTINGS_SIZE)
#define BOOTLOADER_SETTINGS_SIZE (0x1000) // 4kiB
#define CIRCUITPY_INTERNAL_FLASH_FILESYSTEM_START_ADDR (BOOTLOADER_START_ADDR - CIRCUITPY_INTERNAL_FLASH_FILESYSTEM_SIZE)
#if CIRCUITPY_INTERNAL_FLASH_FILESYSTEM_SIZE > 0 && CIRCUITPY_INTERNAL_FLASH_FILESYSTEM_START_ADDR != (BOOTLOADER_START_ADDR - 256*1024)
#if CIRCUITPY_INTERNAL_FLASH_FILESYSTEM_SIZE > 0 && CIRCUITPY_INTERNAL_FLASH_FILESYSTEM_START_ADDR != (BOOTLOADER_START_ADDR - CIRCUITPY_INTERNAL_FLASH_FILESYSTEM_SIZE)
#warning Internal flash filesystem location has moved!
#endif

@ -73,4 +73,18 @@ NRF_DEFINES += -DNRF52840_XXAA -DNRF52840
CFLAGS += -DCONFIG_NFCT_PINS_AS_GPIOS
CIRCUITPY_ULAB = 1
else
ifeq ($(MCU_CHIP),nrf52833)
MCU_SERIES = m4
MCU_VARIANT = nrf52
MCU_SUB_VARIANT = nrf52833
SD ?= s140
SOFTDEV_VERSION ?= 6.1.0
BOOT_SETTING_ADDR = 0x7F000
NRF_DEFINES += -DNRF52833_XXAA -DNRF52833
endif
endif

@ -41,7 +41,7 @@
#define NRFX_SPIM1_ENABLED 1
#endif
#define NRFX_SPIM2_ENABLED 1
#ifdef NRF52840_XXAA
#if defined(NRF52840_XXAA) || defined(NRF52833_XXAA)
#define NRFX_SPIM_EXTENDED_ENABLED 1
#define NRFX_SPIM3_ENABLED 1
#elif CIRCUITPY_NRF_NUM_I2C == 2
@ -53,7 +53,9 @@
#define NRFX_SPIM_MISO_PULL_CFG 1
// QSPI
#if defined(NRF52840_XXAA)
#define NRFX_QSPI_ENABLED 1
#endif
// TWI aka. I2C; always enable TWIM0 (no conflict with SPIM1 and SPIM2)
#if CIRCUITPY_NRF_NUM_I2C == 1 || CIRCUITPY_NRF_NUM_I2C == 2

@ -0,0 +1,72 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2018 Dan Halbert for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "py/obj.h"
#include "py/mphal.h"
#include "nrf/pins.h"
const mcu_pin_obj_t pin_P0_00 = PIN(P0_00, 0, 0, 0);
const mcu_pin_obj_t pin_P0_01 = PIN(P0_01, 0, 1, 0);
const mcu_pin_obj_t pin_P0_02 = PIN(P0_02, 0, 2, SAADC_CH_PSELP_PSELP_AnalogInput0);
const mcu_pin_obj_t pin_P0_03 = PIN(P0_03, 0, 3, SAADC_CH_PSELP_PSELP_AnalogInput1);
const mcu_pin_obj_t pin_P0_04 = PIN(P0_04, 0, 4, SAADC_CH_PSELP_PSELP_AnalogInput2);
const mcu_pin_obj_t pin_P0_05 = PIN(P0_05, 0, 5, SAADC_CH_PSELP_PSELP_AnalogInput3);
const mcu_pin_obj_t pin_P0_06 = PIN(P0_06, 0, 6, 0);
const mcu_pin_obj_t pin_P0_07 = PIN(P0_07, 0, 7, 0);
const mcu_pin_obj_t pin_P0_08 = PIN(P0_08, 0, 8, 0);
const mcu_pin_obj_t pin_P0_09 = PIN(P0_09, 0, 9, 0);
const mcu_pin_obj_t pin_P0_10 = PIN(P0_10, 0, 10, 0);
const mcu_pin_obj_t pin_P0_11 = PIN(P0_11, 0, 11, 0);
const mcu_pin_obj_t pin_P0_12 = PIN(P0_12, 0, 12, 0);
const mcu_pin_obj_t pin_P0_13 = PIN(P0_13, 0, 13, 0);
const mcu_pin_obj_t pin_P0_14 = PIN(P0_14, 0, 14, 0);
const mcu_pin_obj_t pin_P0_15 = PIN(P0_15, 0, 15, 0);
const mcu_pin_obj_t pin_P0_16 = PIN(P0_16, 0, 16, 0);
const mcu_pin_obj_t pin_P0_17 = PIN(P0_17, 0, 17, 0);
const mcu_pin_obj_t pin_P0_18 = PIN(P0_18, 0, 18, 0);
const mcu_pin_obj_t pin_P0_19 = PIN(P0_19, 0, 19, 0);
const mcu_pin_obj_t pin_P0_20 = PIN(P0_20, 0, 20, 0);
const mcu_pin_obj_t pin_P0_21 = PIN(P0_21, 0, 21, 0);
const mcu_pin_obj_t pin_P0_22 = PIN(P0_22, 0, 22, 0);
const mcu_pin_obj_t pin_P0_23 = PIN(P0_23, 0, 23, 0);
const mcu_pin_obj_t pin_P0_24 = PIN(P0_24, 0, 24, 0);
const mcu_pin_obj_t pin_P0_25 = PIN(P0_25, 0, 25, 0);
const mcu_pin_obj_t pin_P0_26 = PIN(P0_26, 0, 26, 0);
const mcu_pin_obj_t pin_P0_27 = PIN(P0_27, 0, 27, 0);
const mcu_pin_obj_t pin_P0_28 = PIN(P0_28, 0, 28, SAADC_CH_PSELP_PSELP_AnalogInput4);
const mcu_pin_obj_t pin_P0_29 = PIN(P0_29, 0, 29, SAADC_CH_PSELP_PSELP_AnalogInput5);
const mcu_pin_obj_t pin_P0_30 = PIN(P0_30, 0, 30, SAADC_CH_PSELP_PSELP_AnalogInput6);
const mcu_pin_obj_t pin_P0_31 = PIN(P0_31, 0, 31, SAADC_CH_PSELP_PSELP_AnalogInput7);
const mcu_pin_obj_t pin_P1_00 = PIN(P1_00, 1, 0, 0);
const mcu_pin_obj_t pin_P1_01 = PIN(P1_01, 1, 1, 0);
const mcu_pin_obj_t pin_P1_02 = PIN(P1_02, 1, 2, 0);
const mcu_pin_obj_t pin_P1_03 = PIN(P1_03, 1, 3, 0);
const mcu_pin_obj_t pin_P1_04 = PIN(P1_04, 1, 4, 0);
const mcu_pin_obj_t pin_P1_05 = PIN(P1_05, 1, 5, 0);
const mcu_pin_obj_t pin_P1_06 = PIN(P1_06, 1, 6, 0);
const mcu_pin_obj_t pin_P1_07 = PIN(P1_07, 1, 7, 0);
const mcu_pin_obj_t pin_P1_08 = PIN(P1_08, 1, 8, 0);
const mcu_pin_obj_t pin_P1_09 = PIN(P1_09, 1, 9, 0);

@ -0,0 +1,73 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2018 by Dan Halbert for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef MICROPY_INCLUDED_NRF_PERIPHERALS_NRF52833_PINS_H
#define MICROPY_INCLUDED_NRF_PERIPHERALS_NRF52833_PINS_H
extern const mcu_pin_obj_t pin_P0_00;
extern const mcu_pin_obj_t pin_P0_01;
extern const mcu_pin_obj_t pin_P0_02;
extern const mcu_pin_obj_t pin_P0_03;
extern const mcu_pin_obj_t pin_P0_04;
extern const mcu_pin_obj_t pin_P0_05;
extern const mcu_pin_obj_t pin_P0_06;
extern const mcu_pin_obj_t pin_P0_07;
extern const mcu_pin_obj_t pin_P0_08;
extern const mcu_pin_obj_t pin_P0_09;
extern const mcu_pin_obj_t pin_P0_10;
extern const mcu_pin_obj_t pin_P0_11;
extern const mcu_pin_obj_t pin_P0_12;
extern const mcu_pin_obj_t pin_P0_13;
extern const mcu_pin_obj_t pin_P0_14;
extern const mcu_pin_obj_t pin_P0_15;
extern const mcu_pin_obj_t pin_P0_16;
extern const mcu_pin_obj_t pin_P0_17;
extern const mcu_pin_obj_t pin_P0_18;
extern const mcu_pin_obj_t pin_P0_19;
extern const mcu_pin_obj_t pin_P0_20;
extern const mcu_pin_obj_t pin_P0_21;
extern const mcu_pin_obj_t pin_P0_22;
extern const mcu_pin_obj_t pin_P0_23;
extern const mcu_pin_obj_t pin_P0_24;
extern const mcu_pin_obj_t pin_P0_25;
extern const mcu_pin_obj_t pin_P0_26;
extern const mcu_pin_obj_t pin_P0_27;
extern const mcu_pin_obj_t pin_P0_28;
extern const mcu_pin_obj_t pin_P0_29;
extern const mcu_pin_obj_t pin_P0_30;
extern const mcu_pin_obj_t pin_P0_31;
extern const mcu_pin_obj_t pin_P1_00;
extern const mcu_pin_obj_t pin_P1_01;
extern const mcu_pin_obj_t pin_P1_02;
extern const mcu_pin_obj_t pin_P1_03;
extern const mcu_pin_obj_t pin_P1_04;
extern const mcu_pin_obj_t pin_P1_05;
extern const mcu_pin_obj_t pin_P1_06;
extern const mcu_pin_obj_t pin_P1_07;
extern const mcu_pin_obj_t pin_P1_08;
extern const mcu_pin_obj_t pin_P1_09;
#endif // MICROPY_INCLUDED_NRF_PERIPHERALS_NRF52833_PINS_H

@ -0,0 +1,50 @@
/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2018 Dan Halbert for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "nrfx.h"
#include "hal/nrf_nvmc.h"
void nrf_peripherals_power_init(void) {
// Set GPIO reference voltage to 3.3V if it isn't already. REGOUT0 will get reset to 0xfffffff
// if flash is erased, which sets the default to 1.8V
// This matters only when "high voltage mode" is enabled, which is true on the PCA10059,
// and might be true on other boards.
if (NRF_UICR->REGOUT0 == 0xffffffff && NRF_POWER->MAINREGSTATUS & 1) {
// Expand what nrf_nvmc_word_write() did.
// It's missing from nrfx V2.0.0, and nrfx_nvmc_word_write() does bounds
// checking which prevents writes to UICR.
// Reported: https://devzone.nordicsemi.com/f/nordic-q-a/57243/nrfx_nvmc-h-api-cannot-write-to-uicr
NRF_NVMC->CONFIG = NRF_NVMC_MODE_WRITE;
while (!(NRF_NVMC->READY & NVMC_READY_READY_Msk)) {}
NRF_UICR->REGOUT0 = UICR_REGOUT0_VOUT_3V3 << UICR_REGOUT0_VOUT_Pos;
__DMB();
while (NRF_NVMC->READY == NVMC_READY_READY_Busy) {}
NRF_NVMC->CONFIG = NRF_NVMC_MODE_READONLY;
// Must reset to enable change.
NVIC_SystemReset();
}
}

@ -61,4 +61,9 @@ extern const mp_obj_type_t mcu_pin_type;
#include "nrf52840/pins.h"
#endif
// Choose based on chip, but not specifically revision (e.g., not NRF52840_XXAA)
#ifdef NRF52833
#include "nrf52833/pins.h"
#endif
#endif // __MICROPY_INCLUDED_NRF_PERIPHERALS_PINS_H__

Loading…
Cancel
Save