kopia lustrzana https://github.com/stlink-org/stlink
84 wiersze
2.1 KiB
C
84 wiersze
2.1 KiB
C
/*
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* File: calculate.c
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*
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* Calculation of sector numbers and pages
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*/
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#include <stdint.h>
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#include <stlink.h>
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#include "calculate.h"
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#include "common_flash.h"
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#include "read_write.h"
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uint32_t calculate_F4_sectornum(uint32_t flashaddr) {
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uint32_t offset = 0;
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flashaddr &= ~STM32_FLASH_BASE; // page now holding the actual flash address
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if (flashaddr >= 0x100000) {
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offset = 12;
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flashaddr -= 0x100000;
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}
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if (flashaddr < 0x4000) {
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return (offset + 0);
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} else if (flashaddr < 0x8000) {
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return (offset + 1);
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} else if (flashaddr < 0xc000) {
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return (offset + 2);
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} else if (flashaddr < 0x10000) {
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return (offset + 3);
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} else if (flashaddr < 0x20000) {
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return (offset + 4);
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} else {
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return (offset + (flashaddr / 0x20000) + 4);
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}
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}
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uint32_t calculate_F7_sectornum(uint32_t flashaddr) {
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flashaddr &= ~STM32_FLASH_BASE; // Page now holding the actual flash address
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if (flashaddr < 0x20000) {
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return (flashaddr / 0x8000);
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} else if (flashaddr < 0x40000) {
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return (4);
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} else {
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return ((flashaddr / 0x40000) + 4);
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}
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}
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uint32_t calculate_H7_sectornum(stlink_t *sl, uint32_t flashaddr, uint32_t bank) {
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flashaddr &=
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~((bank == BANK_1)
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? STM32_FLASH_BASE
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: STM32_H7_FLASH_BANK2_BASE); // sector holding the flash address
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return (flashaddr / sl->flash_pgsz);
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}
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// returns BKER:PNB for the given page address
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uint32_t calculate_L4_page(stlink_t *sl, uint32_t flashaddr) {
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uint32_t bker = 0;
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uint32_t flashopt;
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stlink_read_debug32(sl, FLASH_L4_OPTR, &flashopt);
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flashaddr -= STM32_FLASH_BASE;
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if (sl->chip_id == STM32_CHIPID_L4 ||
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sl->chip_id == STM32_CHIPID_L496x_L4A6x ||
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sl->chip_id == STM32_CHIPID_L4Rx) {
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// this chip use dual banked flash
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if (flashopt & (uint32_t)(1lu << FLASH_L4_OPTR_DUALBANK)) {
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uint32_t banksize = sl->flash_size / 2;
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if (flashaddr >= banksize) {
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flashaddr -= banksize;
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bker = 0x100;
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}
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}
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}
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// For 1MB chips without the dual-bank option set, the page address will
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// overflow into the BKER bit, which gives us the correct bank:page value.
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return (bker | flashaddr / sl->flash_pgsz);
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}
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