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Draft flash settings

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This commit is contained in:
Ben V. Brown
2022-04-22 18:22:33 +10:00
parent 848863003d
commit 49be70c667
2 changed files with 14 additions and 6 deletions
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2
source/Core/BSP/Magic/bl_mcu_sdk/drivers/bl702_driver/bl702_flash.ld
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@@ -21,7 +21,7 @@ StackSize = 0x1000; /* 4KB */
MEMORY
{
xip_memory (rx) : ORIGIN = 0x23000000, LENGTH = 1024K
xip_memory (rx) : ORIGIN = 0x23000000, LENGTH = 1022K /* 1024K, less the two pages we are using for settings and logo*/
itcm_memory (rx) : ORIGIN = 0x22014000, LENGTH = 16K
dtcm_memory (rx) : ORIGIN = 0x42018000, LENGTH = 16K
ram_memory (!rx) : ORIGIN = 0x4201C000, LENGTH = 80K

18
source/Core/BSP/Magic/flash.c
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@@ -7,17 +7,25 @@
#include "BSP.h"
#include "BSP_Flash.h"
#include "hal_flash.h"
#include "string.h"
#define FMC_PAGE_SIZE ((uint16_t)0x400U)
// static uint16_t settings_page[FMC_PAGE_SIZE] __attribute__ ((section (".settings_page")));
// Linker script doesnt want to play, so for now its hard coded
#define SETTINGS_START_PAGE (0x08000000 + (127 * 1024))
#define FLASH_PAGE_SIZE ((uint16_t)1024)
#define SETTINGS_START_PAGE (1023 * 1024) // Hal auto offsets base addr
#define SETTINGS_READ_PAGE 0x23000000 + SETTINGS_START_PAGE
uint8_t flash_save_buffer(const uint8_t *buffer, const uint16_t length) {
// #TODO
flash_erase(SETTINGS_START_PAGE, length);
flash_write(SETTINGS_START_PAGE, buffer, sizeof(length));
return 1;
}
void flash_read_buffer(uint8_t *buffer, const uint16_t length) {
/* read 0x00010000 flash data */
flash_read(SETTINGS_START_PAGE, buffer, sizeof(length));
return;
// #TODO
uint32_t *b = (uint32_t *)buffer;