samd/boards/SAMD21_XPLAINED_PRO: Update for flash and pins.

- mpconfigboard.h: flash and USART config
- mpconfigboard.mk: enable LFS1
- pins.c: define pins and LEDs
- pins.h: define structs and consts
This commit is contained in:
Peter van der Burg 2021-05-22 17:02:04 +10:00 committed by Damien George
parent fb79e58636
commit 771d673e5c
4 changed files with 163 additions and 0 deletions

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@ -1,2 +1,28 @@
#define MICROPY_HW_BOARD_NAME "SAMD21-XPLAINED-PRO"
#define MICROPY_HW_MCU_NAME "SAMD21J18A"
// MicroPython configs
// samd_flash.c flash parameters
// Build a 64k Flash storage at top. 256k-64k=196k
// 256*1024=262144 minus 64*1024=65536 = 196608 = 0x30000
#define MICROPY_HW_FLASH_STORAGE_BASE (0x30000)
#define MICROPY_HW_FLASH_STORAGE_BYTES (0xFFFF)
#define VFS_BLOCK_SIZE_BYTES (1536) // 24x 64B flash pages;
// ASF4 MCU package specific Pin definitions
#include "samd21j18a.h"
// Please consult the SAM_D21 Datasheet, I/O Multiplexing and Considerations.
// USART pin assignments: (This board has 3 USARTS brought out to the pins. See https://docs.zephyrproject.org/1.14.1/boards/arm/atsamd21_xpro/doc/index.html#serial-port )
// Tx=PA10=SERCOM0/PAD[2], Rx=PA11=SERCOM0/PAD[3]
#define CPU_FREQ (48000000) // For selecting Baud from clock.
#define MP_PIN_GRP 1 // A=0, B=1
#define MP_TX_PIN 10 // 'n'
#define MP_RX_PIN 11
#define MP_PERIPHERAL_MUX 5 // 'n'th group of 2 pins
#define USARTx SERCOM0 // SERCOM0: tx/rx
#define MP_PORT_FUNC 0x22 // Sets PMUXE & PMUXO to the Alternative Function.(A-H=0-7)
#define MP_RXPO_PAD 3 // RXPO- Receive Data Pinout
#define MP_TXPO_PAD 2 // TXPO- Tranmit Data Pinout
#define MP_SERCOMx SERCOM0_ // APBCMASK
#define MP_SERCOM_GCLK_ID_x_CORE GCLK_CLKCTRL_ID_SERCOM0_CORE // Generic Clock Control

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@ -2,3 +2,7 @@ MCU_SERIES = SAMD21
CMSIS_MCU = SAMD21J18A
LD_FILES = boards/samd21x18a.ld sections.ld
TEXT0 = 0x2000
# The ?='s allow overriding in mpconfigboard.mk.
# MicroPython settings
MICROPY_VFS_LFS1 ?= 1

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@ -0,0 +1,91 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2021 Peter van der Burg
*
* 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.
*
* Used by machine_pin.c. Holds Board/MCU specific Pin allocations.
*/
#include "modmachine.h"
#include "pins.h"
// Ensure Declaration in 'pins.h' reflects # of Pins defined here.
const machine_pin_obj_t machine_pin_obj[] = {
// EXT1
{{&machine_pin_type}, PIN_PB00}, // PIN3_ADC(+)
{{&machine_pin_type}, PIN_PB01}, // PIN4_ADC(-)
{{&machine_pin_type}, PIN_PB06}, // PIN5_GPIO
{{&machine_pin_type}, PIN_PB07}, // PIN6_GPIO
{{&machine_pin_type}, PIN_PB02}, // PIN7_PWM(+)
{{&machine_pin_type}, PIN_PB03}, // PIN8_PWM(-)
{{&machine_pin_type}, PIN_PB04}, // PIN9_IRQ/GPIO
{{&machine_pin_type}, PIN_PB05}, // PIN10_SPI_SS_B/GPIO
{{&machine_pin_type}, PIN_PA08}, // PIN11_TWI_SDA
{{&machine_pin_type}, PIN_PA09}, // PIN12_TWI_SCL
{{&machine_pin_type}, PIN_PB09}, // PIN13_UART_RX
{{&machine_pin_type}, PIN_PB08}, // PIN14_UART_TX
{{&machine_pin_type}, PIN_PA05}, // PIN15_SPI_SS_A
{{&machine_pin_type}, PIN_PA06}, // PIN16_SPI_MOSI
{{&machine_pin_type}, PIN_PA04}, // PIN17_SPI_MISO
{{&machine_pin_type}, PIN_PA07}, // PIN18_SPI_SCK
// EXT2
{{&machine_pin_type}, PIN_PA10}, // PIN3_ADC(+)
{{&machine_pin_type}, PIN_PA11}, // PIN4_ADC(-)
{{&machine_pin_type}, PIN_PA20}, // PIN5_GPIO
{{&machine_pin_type}, PIN_PA21}, // PIN6_GPIO
{{&machine_pin_type}, PIN_PB12}, // PIN7_PWM(+)
{{&machine_pin_type}, PIN_PB13}, // PIN8_PWM(-)
{{&machine_pin_type}, PIN_PB14}, // PIN9_IRQ/GPIO
{{&machine_pin_type}, PIN_PB15}, // PIN10_SPI_SS_B/GPIO
{{NULL}, -1}, // PIN_PA08/ PIN11_TWI_SDA already defined
{{NULL}, -1}, // PIN_PA09/ PIN12_TWI_SCL already defined
{{&machine_pin_type}, PIN_PB11}, // PIN13_UART_RX
{{&machine_pin_type}, PIN_PB10}, // PIN14_UART_TX
{{&machine_pin_type}, PIN_PA17}, // PIN15_SPI_SS_A
{{&machine_pin_type}, PIN_PA18}, // PIN16_SPI_MOSI
{{&machine_pin_type}, PIN_PA16}, // PIN17_SPI_MISO
{{&machine_pin_type}, PIN_PA19}, // PIN18_SPI_SCK
// EXT3
{{&machine_pin_type}, PIN_PA02}, // PIN3_ADC(+)
{{&machine_pin_type}, PIN_PA03}, // PIN4_ADC(-)
{{NULL}, -1}, // PIN_PB30/ PIN5_GPIO already defined
{{&machine_pin_type}, PIN_PA15}, // PIN6_GPIO; USER_BUTTON
{{&machine_pin_type}, PIN_PA12}, // PIN7_PWM(+)
{{&machine_pin_type}, PIN_PA13}, // PIN8_PWM(-)
{{&machine_pin_type}, PIN_PA28}, // PIN9_IRQ/GPIO
{{&machine_pin_type}, PIN_PA27}, // PIN10_SPI_SS_B/GPIO
{{NULL}, -1}, // PIN_PA08/ PIN11_TWI_SDA already defined
{{NULL}, -1}, // PIN_PA09/ PIN12_TWI_SCL already defined
{{NULL}, -1}, // PIN_PB11/ PIN13_UART_RX already defined
{{NULL}, -1}, // PIN_PB10/ PIN14_UART_TX already defined
{{&machine_pin_type}, PIN_PB17}, // PIN15_SPI_SS_A
{{&machine_pin_type}, PIN_PB22}, // PIN16_SPI_MOSI
{{&machine_pin_type}, PIN_PB16}, // PIN17_SPI_MISO
{{&machine_pin_type}, PIN_PB23}, // PIN18_SPI_SCK
};
const machine_led_obj_t machine_led_obj[] = {
{{&machine_led_type}, PIN_PB30}, // USER_LED
};

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@ -0,0 +1,42 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2021 Peter van der Burg
*
* 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.
*
* Used by machine_pin.c & board specific pins.c. Holds Board/MCU specific Pin
* allocations.
*/
typedef struct _machine_pin_obj_t {
mp_obj_base_t base;
uint32_t id;
} machine_pin_obj_t;
typedef struct _machine_led_obj_t {
mp_obj_base_t base;
uint32_t id;
} machine_led_obj_t;
// MUST explicitly hold array # of rows, else machine_pin.c wont compile.
extern const machine_pin_obj_t machine_pin_obj[48];
extern const machine_led_obj_t machine_led_obj[1];