add boards.c , remove msc_uf2.h lots of clean up and refactor

This commit is contained in:
hathach 2018-08-14 15:56:24 +07:00
parent e4716816c2
commit 85ad6e6b65
13 changed files with 233 additions and 216 deletions

View File

@ -120,6 +120,7 @@ endif
# src
C_SOURCE_FILES += $(SRC_PATH)/main.c
C_SOURCE_FILES += $(SRC_PATH)/boards.c
C_SOURCE_FILES += $(SRC_PATH)/flash.c
C_SOURCE_FILES += $(SRC_PATH)/dfu_ble_svc.c
C_SOURCE_FILES += $(SRC_PATH)/dfu_init.c

View File

@ -10,6 +10,7 @@
*
*/
#include <stdio.h>
#include "dfu_transport.h"
#include "dfu.h"
#include <dfu_types.h>
@ -45,9 +46,8 @@ enum { BLE_CONN_CFG_HIGH_BANDWIDTH = 1 };
#define DFU_SERVICE_HANDLE 0x000C /**< Handle of DFU service when DFU service is first service initialized. */
#define BLE_HANDLE_MAX 0xFFFF /**< Max handle value is BLE. */
#define DEVICE_NAME "AdaDFU" // limit of 8 chars /**< Name of device. Will be included in the advertising data. */
#define DIS_MANUFACTURER "Adafruit Industries"
// DIS_MODEL is defined in boards.h, DIS_FIRMWARE is defined by makefile
// limit of 8 chars
#define DEVICE_NAME "AdaDFU" /**< Name of device. Will be included in the advertising data. */
#define MIN_CONN_INTERVAL (uint16_t)(MSEC_TO_UNITS(10, UNIT_1_25_MS)) /**< Minimum acceptable connection interval (11.25 milliseconds). */
#define MAX_CONN_INTERVAL (uint16_t)(MSEC_TO_UNITS(30, UNIT_1_25_MS)) /**< Maximum acceptable connection interval (15 milliseconds). */
@ -983,7 +983,18 @@ static void services_init(void)
ascii_to_utf8(&dis_init.manufact_name_str, DIS_MANUFACTURER);
ascii_to_utf8(&dis_init.model_num_str, DIS_MODEL);
ascii_to_utf8(&dis_init.fw_rev_str, MK_DIS_FIRMWARE);
uint32_t const sd_id = SD_ID_GET(MBR_SIZE);
uint32_t const sd_version = SD_VERSION_GET(MBR_SIZE);
uint32_t const ver1 = sd_version / 1000000;
uint32_t const ver2 = (sd_version % 1000000)/1000;
uint32_t const ver3 = sd_version % 1000;
char fw_str[30+1];
sprintf(fw_str, "s%ld %ld.%ld.%ld r%ld", sd_id, ver1, ver2, ver3, MK_BOOTLOADER_VERSION & 0xFFUL);
ascii_to_utf8(&dis_init.fw_rev_str, fw_str);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&dis_init.dis_attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&dis_init.dis_attr_md.write_perm);

166
src/boards.c Normal file
View File

@ -0,0 +1,166 @@
/**************************************************************************/
/*!
@file boards.c
@author hathach (tinyusb.org)
@section LICENSE
Software License Agreement (BSD License)
Copyright (c) 2018, Adafruit Industries (adafruit.com)
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holders nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**************************************************************************/
#include "boards.h"
#include "app_scheduler.h"
#include "app_timer.h"
//--------------------------------------------------------------------+
// MACRO TYPEDEF CONSTANT ENUM DECLARATION
//--------------------------------------------------------------------+
#define SCHED_MAX_EVENT_DATA_SIZE sizeof(app_timer_event_t) /**< Maximum size of scheduler events. */
#define SCHED_QUEUE_SIZE 30 /**< Maximum number of events in the scheduler queue. */
/* use PWM for blinky to prevent inconsistency due to MCU blocking in flash operation
* clock = 125khz --> resolution = 8us
* top value = 25000 -> period = 200 ms
* Mode up -> toggle every 100 ms = fast blink
* Mode up and down = 400 ms = slow blink
*/
#define PWM_MAXCOUNT 25000
#define PWM_CHANNEL_NUM 4
uint16_t _pwm_red_seq [PWM_CHANNEL_NUM] = { PWM_MAXCOUNT/2, 0, 0 , 0 };
uint16_t _pwm_blue_seq[PWM_CHANNEL_NUM] = { PWM_MAXCOUNT/2, 0, 0 , 0 };
//------------- IMPLEMENTATION -------------//
void board_init(void)
{
// stop WDT if started by application, when jumping from application using BLE DFU
if ( NRF_WDT->RUNSTATUS )
{
NRF_WDT->TASKS_START = 0;
}
button_init(BUTTON_DFU);
button_init(BUTTON_FRESET);
NRFX_DELAY_US(100); // wait for the pin state is stable
// LED init
nrf_gpio_cfg_output(LED_RED);
nrf_gpio_cfg_output(LED_BLUE);
led_off(LED_RED);
led_off(LED_BLUE);
// use PMW0 for LED RED
led_pwm_init(NRF_PWM0, LED_RED);
// Init scheduler
APP_SCHED_INIT(SCHED_MAX_EVENT_DATA_SIZE, SCHED_QUEUE_SIZE);
// Init app timer (use RTC1)
app_timer_init();
}
void board_teardown(void)
{
// Disable and reset PWM for LED
led_pwm_teardown(NRF_PWM0);
led_off(LED_BLUE);
led_off(LED_RED);
// Button
// Stop RTC1 used by app_timer
NVIC_DisableIRQ(RTC1_IRQn);
NRF_RTC1->EVTENCLR = RTC_EVTEN_COMPARE0_Msk;
NRF_RTC1->INTENCLR = RTC_INTENSET_COMPARE0_Msk;
NRF_RTC1->TASKS_STOP = 1;
NRF_RTC1->TASKS_CLEAR = 1;
}
uint32_t tusb_hal_millis(void)
{
return ( ( ((uint64_t)app_timer_cnt_get())*1000*(APP_TIMER_CONFIG_RTC_FREQUENCY+1)) / APP_TIMER_CLOCK_FREQ );
}
void led_pwm_init(NRF_PWM_Type* pwm, uint32_t led_pin)
{
pwm->MODE = PWM_MODE_UPDOWN_UpAndDown;
pwm->COUNTERTOP = PWM_MAXCOUNT;
pwm->PRESCALER = PWM_PRESCALER_PRESCALER_DIV_128;
pwm->DECODER = PWM_DECODER_LOAD_Individual;
pwm->LOOP = 0;
pwm->SEQ[0].PTR = (uint32_t) (led_pin == LED_RED ? _pwm_red_seq : _pwm_blue_seq);
pwm->SEQ[0].CNT = PWM_CHANNEL_NUM; // default mode is Individual --> count must be 4
pwm->SEQ[0].REFRESH = 0;
pwm->SEQ[0].ENDDELAY = 0;
pwm->PSEL.OUT[0] = led_pin;
pwm->ENABLE = 1;
pwm->TASKS_SEQSTART[0] = 1;
}
void led_pwm_teardown(NRF_PWM_Type* pwm)
{
pwm->TASKS_SEQSTART[0] = 0;
pwm->ENABLE = 0;
pwm->PSEL.OUT[0] = 0xFFFFFFFF;
pwm->MODE = 0;
pwm->COUNTERTOP = 0x3FF;
pwm->PRESCALER = 0;
pwm->DECODER = 0;
pwm->LOOP = 0;
pwm->SEQ[0].PTR = 0;
pwm->SEQ[0].CNT = 0;
}
void led_pwm_solid(uint32_t led_pin, bool solid)
{
uint16_t* seq = ((led_pin == LED_RED) ? _pwm_red_seq : _pwm_blue_seq);
seq[0] = (solid ? PWM_MAXCOUNT : PWM_MAXCOUNT/2);
}
void led_blink_fast(bool enable)
{
if ( enable )
{
NRF_PWM0->MODE = PWM_MODE_UPDOWN_Up;
}else
{
NRF_PWM0->MODE = PWM_MODE_UPDOWN_UpAndDown;
}
}

View File

@ -26,11 +26,19 @@
#error No boards defined
#endif
#define BUTTON_DFU BUTTON_1
#define BUTTON_FRESET BUTTON_2
#define LED_RED LED_1
#define LED_BLUE LED_2
void board_init(void);
void board_teardown(void);
//--------------------------------------------------------------------+
// LED
//--------------------------------------------------------------------+
#define LED_RED LED_1
#define LED_BLUE LED_2
#define bit(b) (1UL << (b))
@ -49,6 +57,10 @@ static inline void led_off(uint32_t pin)
led_control(pin, false);
}
void led_pwm_init(NRF_PWM_Type* pwm, uint32_t led_pin);
void led_pwm_teardown(NRF_PWM_Type* pwm);
void led_pwm_solid(uint32_t led_pin, bool solid);
void led_blink_fast(bool enable);
//--------------------------------------------------------------------+

View File

@ -63,6 +63,7 @@
#define HWFC false
// Used as model string in OTA mode
#define DIS_MANUFACTURER "Adafruit Industries"
#define DIS_MODEL "Bluefruit Feather nRF52832"
#endif // _FEATHER52832_H

View File

@ -65,6 +65,7 @@
#define HWFC false
// Used as model string in OTA mode
#define DIS_MODEL "Bluefruit Feather nRF52840"
#define DIS_MANUFACTURER "Adafruit Industries"
#define DIS_MODEL "Bluefruit Feather nRF52840 Express"
#endif // _FEATHER52840_H

View File

@ -63,6 +63,7 @@
#define HWFC false
// Used as model string in OTA mode
#define DIS_MODEL "Nordic PCA10056"
#define DIS_MANUFACTURER "Nordic"
#define DIS_MODEL "PCA10056"
#endif // PCA10056_H

View File

@ -51,14 +51,12 @@
#include "nrf.h"
#include "ble_hci.h"
#include "app_scheduler.h"
#include "app_timer.h"
#include "nrf_error.h"
#include "boards.h"
#include "pstorage_platform.h"
#include "nrf_mbr.h"
#include "nrf_wdt.h"
#include "pstorage.h"
#include "nrf_nvmc.h"
@ -66,7 +64,6 @@
#ifdef NRF52840_XXAA
#include "nrf_usbd.h"
#include "tusb.h"
#include "usb/msc_uf2.h"
void usb_init(void);
void usb_teardown(void);
@ -78,10 +75,16 @@ void usb_teardown(void);
#endif
/*
* Blinking patterns:
* - DFU Serial : LED Status blink
* - DFU OTA : LED Status & Conn blink at the same time
* - DFU Flashing : LED Status blink 2x fast
* - Factory Reset : LED Status blink 2x fast
* - Fatal Error : LED Status & Conn blink one after another
*/
#define BOOTLOADER_VERSION_REGISTER NRF_TIMER2->CC[0]
#define LED_BLINK_INTERVAL 100
#define BOOTLOADER_STARTUP_DFU_INTERVAL 1000
/* Magic that written to NRF_POWER->GPREGRET by application when it wish to go into DFU
@ -95,12 +98,6 @@ void usb_teardown(void);
#define BOOTLOADER_DFU_OTA_FULLRESET_MAGIC 0xA8
#define BOOTLOADER_DFU_SERIAL_MAGIC 0x4e
#define BUTTON_DFU BUTTON_1 // Button used to enter SW update mode.
#define BUTTON_FRESET BUTTON_2 // Button used in addition to DFU button, to force OTA DFU
#define SCHED_MAX_EVENT_DATA_SIZE sizeof(app_timer_event_t) /**< Maximum size of scheduler events. */
#define SCHED_QUEUE_SIZE 30 /**< Maximum number of events in the scheduler queue. */
// Helper function
#define memclr(buffer, size) memset(buffer, 0, size)
#define varclr(_var) memclr(_var, sizeof(*(_var)))
@ -125,122 +122,13 @@ STATIC_ASSERT( APPDATA_ADDR_START == 0x6D000);
void adafruit_factory_reset(void);
/*
* Blinking patterns:
* - DFU Serial : LED Status blink
* - DFU OTA : LED Status & Conn blink at the same time
* - DFU Flashing : LED Status blink 2x fast
* - Factory Reset : LED Status blink 2x fast
* - Fatal Error : LED Status & Conn blink one after another
*/
bool _ota_connected = false;
// true if ble, false if serial
bool _ota_update = false;
bool _ota_connected = false;
bool is_ota(void) { return _ota_update; }
#define PWM_MAXCOUNT 25000
uint16_t _pwm_red_seq0 [NRF_PWM_CHANNEL_COUNT] = { PWM_MAXCOUNT/2, 0, 0 , 0 };
uint16_t _pwm_blue_seq0[NRF_PWM_CHANNEL_COUNT] = { PWM_MAXCOUNT/2, 0, 0 , 0 };
void led_blink_fast(bool enable)
bool is_ota(void)
{
if ( enable )
{
NRF_PWM0->MODE = PWM_MODE_UPDOWN_Up;
}else
{
NRF_PWM0->MODE = PWM_MODE_UPDOWN_UpAndDown;
}
}
/* use PWM for blinky to prevent inconsistency due to MCU blocking in flash operation
* clock = 125khz --> resolution = 8us
* top value = 25000 -> period = 200 ms (fast blink) --> up and down mode = 400 ms ( slow blink )
*/
void led_pwm_init(NRF_PWM_Type* pwm, uint32_t led_pin)
{
pwm->MODE = PWM_MODE_UPDOWN_UpAndDown;
pwm->COUNTERTOP = PWM_MAXCOUNT;
pwm->PRESCALER = PWM_PRESCALER_PRESCALER_DIV_128;
pwm->DECODER = PWM_DECODER_LOAD_Individual;
pwm->LOOP = 0;
pwm->SEQ[0].PTR = (uint32_t) (led_pin == LED_RED ? _pwm_red_seq0 : _pwm_blue_seq0);
pwm->SEQ[0].CNT = NRF_PWM_CHANNEL_COUNT; // default mode is Individual --> count must be 4
pwm->SEQ[0].REFRESH = 0;
pwm->SEQ[0].ENDDELAY = 0;
pwm->PSEL.OUT[0] = led_pin;
pwm->ENABLE = 1;
pwm->TASKS_SEQSTART[0] = 1;
}
void led_pwm_teardown(NRF_PWM_Type* pwm)
{
pwm->TASKS_SEQSTART[0] = 0;
pwm->ENABLE = 0;
pwm->PSEL.OUT[0] = 0xFFFFFFFF;
pwm->MODE = 0;
pwm->COUNTERTOP = 0x3FF;
pwm->PRESCALER = 0;
pwm->DECODER = 0;
pwm->LOOP = 0;
pwm->SEQ[0].PTR = 0;
pwm->SEQ[0].CNT = 0;
}
void board_init(void)
{
// stop WDT if started by application, when jumping from application using BLE DFU
if ( NRF_WDT->RUNSTATUS )
{
NRF_WDT->TASKS_START = 0;
}
button_init(BUTTON_DFU);
button_init(BUTTON_FRESET);
NRFX_DELAY_US(100); // wait for the pin state is stable
// LED init
nrf_gpio_cfg_output(LED_RED);
nrf_gpio_cfg_output(LED_BLUE);
led_off(LED_RED);
led_off(LED_BLUE);
// use PMW0 for LED RED
led_pwm_init(NRF_PWM0, LED_RED);
// Init scheduler
APP_SCHED_INIT(SCHED_MAX_EVENT_DATA_SIZE, SCHED_QUEUE_SIZE);
// Init app timer (use RTC1)
app_timer_init();
}
void board_teardown(void)
{
// Disable and reset PWM for LED
led_pwm_teardown(NRF_PWM0);
if ( is_ota() ) led_pwm_teardown(NRF_PWM1);
led_off(LED_BLUE);
led_off(LED_RED);
// Stop RTC1 used by app_timer
NVIC_DisableIRQ(RTC1_IRQn);
NRF_RTC1->EVTENCLR = RTC_EVTEN_COMPARE0_Msk;
NRF_RTC1->INTENCLR = RTC_INTENSET_COMPARE0_Msk;
NRF_RTC1->TASKS_STOP = 1;
NRF_RTC1->TASKS_CLEAR = 1;
// disable usb
usb_teardown();
return _ota_update;
}
void softdev_mbr_init(void)
@ -376,7 +264,16 @@ int main(void)
// Initiate an update of the firmware.
APP_ERROR_CHECK( bootloader_dfu_start(_ota_update, 0) );
if ( _ota_update ) sd_softdevice_disable();
if ( _ota_update )
{
led_pwm_teardown(NRF_PWM1);
led_off(LED_BLUE);
sd_softdevice_disable();
}else
{
usb_teardown();
}
}
#ifdef NRF52832_XXAA
else
@ -388,15 +285,16 @@ int main(void)
}
#endif
/*------------- Adafruit Factory reset -------------*/
// Adafruit Factory reset
if ( !button_pressed(BUTTON_DFU) && button_pressed(BUTTON_FRESET) )
{
adafruit_factory_reset();
}
/*------------- Reset used prph and jump to application -------------*/
// Reset Board
board_teardown();
// Jump to application if valid
if (bootloader_app_is_valid(DFU_BANK_0_REGION_START) && !bootloader_dfu_sd_in_progress())
{
// MBR must be init before start application
@ -411,10 +309,6 @@ int main(void)
}
//--------------------------------------------------------------------+
// FACTORY RESET
//--------------------------------------------------------------------+
// Perform factory reset to erase Application + Data
void adafruit_factory_reset(void)
{
@ -451,11 +345,6 @@ void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
app_error_handler(0xDEADBEEF, line_num, p_file_name);
}
uint32_t tusb_hal_millis(void)
{
return ( ( ((uint64_t)app_timer_cnt_get())*1000*(APP_TIMER_CONFIG_RTC_FREQUENCY+1)) / APP_TIMER_CLOCK_FREQ );
}
/*------------------------------------------------------------------*/
/* SoftDevice Event handler
*------------------------------------------------------------------*/
@ -478,12 +367,12 @@ uint32_t proc_ble(void)
{
case BLE_GAP_EVT_CONNECTED:
_ota_connected = true;
_pwm_blue_seq0[0] = PWM_MAXCOUNT;
led_pwm_solid(LED_BLUE, true); // LED on
break;
case BLE_GAP_EVT_DISCONNECTED:
_ota_connected = false;
_pwm_blue_seq0[0] = PWM_MAXCOUNT/2;
led_pwm_solid(LED_BLUE, false); // LED Blink
break;
default: break;

View File

@ -65,7 +65,6 @@
<file file_name="../usb/uf2/ghostfat.c" />
</folder>
<file file_name="../usb/msc_uf2.c" />
<file file_name="../usb/msc_uf2.h" />
<file file_name="../usb/usb.c" />
</folder>
<folder Name="cmsis">

View File

@ -34,7 +34,8 @@
*/
/**************************************************************************/
#include "msc_uf2.h"
#include "tusb.h"
#include "uf2/uf2.h"
#if CFG_TUD_MSC

View File

@ -1,65 +0,0 @@
/**************************************************************************/
/*!
@file msc_uf2.h
@author hathach (tinyusb.org)
@section LICENSE
Software License Agreement (BSD License)
Copyright (c) 2018, Adafruit Industries (adafruit.com)
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holders nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**************************************************************************/
#ifndef MSC_FLASH_H_
#define MSC_FLASH_H_
#include "tusb.h"
#ifdef __cplusplus
extern "C" {
#endif
// for checking flash size
#include "dfu_types.h"
#include "uf2/uf2.h"
/*------------------------------------------------------------------*/
/* FLASH Configuration
*------------------------------------------------------------------*/
#define MSC_UF2_FLASH_ADDR_START 0xAD000
#define MSC_UF2_FLASH_SIZE (256*1024)
#define MSC_UF2_BLOCK_SIZE 512
#define MSC_UF2_BLOCK_NUM UF2_NUM_BLOCKS
TU_VERIFY_STATIC( MSC_UF2_FLASH_ADDR_START+MSC_UF2_FLASH_SIZE == BOOTLOADER_REGION_START-DFU_APP_DATA_RESERVED, );
#ifdef __cplusplus
}
#endif
#endif /* MSC_FLASH_H_ */

View File

@ -114,7 +114,7 @@
#define CFG_TUD_MSC_VENDOR "Adafruit"
// Product name included in Inquiry response, max 16 bytes
#define CFG_TUD_MSC_PRODUCT "Feather52840"
#define CFG_TUD_MSC_PRODUCT "Feather nRF52840"
// Product revision string included in Inquiry response, max 4 bytes
#define CFG_TUD_MSC_PRODUCT_REV "1.0"

View File

@ -1,5 +1,5 @@
#define UF2_VERSION "1.00"
#define PRODUCT_NAME "Adafruit Bluefruit nRF52840"
#define PRODUCT_NAME "Adafruit " DIS_MODEL
#define BOARD_ID "NRF52-Bluefruit-v0"
#define INDEX_URL "https://www.adafruit.com/product/0000"
#define BOOTLOADER_ID MK_DIS_FIRMWARE
@ -8,7 +8,7 @@
#define VOLUME_LABEL "NRF52BOOT "
#define FLASH_SIZE (USER_FLASH_END-USER_FLASH_START) // Max flash size
// Only allow to write application
// Only allow to write application TODO dynamic depending on SD size
#define USER_FLASH_START 0x26000
#define USER_FLASH_END 0xAD000 // Fat Fs start here