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Merge pull request #61 from jacobeva/ble

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Add NRF52 BLE serial support
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markqvist 2024-02-10 17:15:02 +01:00 • committed by GitHub
commit 5a87095e30
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8 changed files with 220 additions and 545 deletions
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66
Utilities.h
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@ -18,8 +18,13 @@
#if HAS_EEPROM
#include <EEPROM.h>
#elif PLATFORM == PLATFORM_NRF52
#include "flash_nrf5x.h"
int written_bytes = 0;
#include <Adafruit_LittleFS.h>
#include <InternalFileSystem.h>
using namespace Adafruit_LittleFS_Namespace;
#define EEPROM_FILE "eeprom"
bool file_exists = false;
int written_bytes = 4;
File file(InternalFS);
#endif
#include <stddef.h>
@ -1104,10 +1109,33 @@ void promisc_disable() {
}
#if !HAS_EEPROM && MCU_VARIANT == MCU_NRF52
bool eeprom_begin() {
InternalFS.begin();
file.open(EEPROM_FILE, FILE_O_READ);
// if file doesn't exist
if (!file) {
if (file.open(EEPROM_FILE, FILE_O_WRITE)) {
// initialise the file with empty content
uint8_t empty_content[EEPROM_SIZE] = {0};
file.write(empty_content, EEPROM_SIZE);
return true;
} else {
return false;
}
} else {
file.close();
file.open(EEPROM_FILE, FILE_O_WRITE);
return true;
}
}
uint8_t eeprom_read(uint32_t mapped_addr) {
uint8_t byte;
void* byte_ptr = &byte;
flash_nrf5x_read(byte_ptr, mapped_addr, 1);
file.seek(mapped_addr);
file.read(byte_ptr, 1);
return byte;
}
#endif
@ -1176,23 +1204,31 @@ void eeprom_update(int mapped_addr, uint8_t byte) {
#elif !HAS_EEPROM && MCU_VARIANT == MCU_NRF52
uint8_t read_byte;
void* read_byte_ptr = &read_byte;
void const * byte_ptr = &byte;
flash_nrf5x_read(read_byte_ptr, mapped_addr, 1);
file.seek(mapped_addr);
file.read(read_byte_ptr, 1);
file.seek(mapped_addr);
if (read_byte != byte) {
flash_nrf5x_write(mapped_addr, byte_ptr, 1);
file.write(byte);
}
written_bytes++;
// flush the cache every 4 bytes to make sure everything is synced
if (written_bytes == 4) {
if (written_bytes >= 8) {
file.close();
file.open(EEPROM_FILE, FILE_O_WRITE);
written_bytes = 0;
flash_nrf5x_flush();
}
#endif
}
#if !HAS_EEPROM && MCU_VARIANT == MCU_NRF52
void eeprom_flush() {
// sync file contents to flash
file.close();
file.open(EEPROM_FILE, FILE_O_WRITE);
written_bytes = 0;
}
#endif
void eeprom_write(uint8_t addr, uint8_t byte) {
if (!eeprom_info_locked() && addr >= 0 && addr < EEPROM_RESERVED) {
eeprom_update(eeprom_addr(addr), byte);
@ -1329,8 +1365,16 @@ bool eeprom_checksum_valid() {
void bt_conf_save(bool is_enabled) {
if (is_enabled) {
eeprom_update(eeprom_addr(ADDR_CONF_BT), BT_ENABLE_BYTE);
#if !HAS_EEPROM && MCU_VARIANT == MCU_NRF52
// have to do a flush because we're only writing 1 byte and it syncs after 8
eeprom_flush();
#endif
} else {
eeprom_update(eeprom_addr(ADDR_CONF_BT), 0x00);
#if !HAS_EEPROM && MCU_VARIANT == MCU_NRF52
// have to do a flush because we're only writing 1 byte and it syncs after 8
eeprom_flush();
#endif
}
}