`hpm5100_spi_flash_write.ino`

HPMicro HPM5100: 400 MHz RISC-V MCU for Motor Control and Analog Sensing · File : hpm5100_spi_flash_write.ino · Language : C · Use case : Écrire et lire des données dans la mémoire Flash SiP via l'interface XPI.

Functionality test of internal Flash memory via XPI.

Uses XPI driver to access 1MB SiP Flash. Warning: sector erase takes time. Check XPI configuration in board.c. Code assumes flash is memory-mapped.

hpm5100_spi_flash_write.ino

#include "board.h"
#include "hpm_spi_drv.h"
#include "hpm_xpi_drv.h"

#define FLASH_BASE_ADDR 0x00000000
#define TEST_OFFSET 0x10000

void flash_test(void) {
    uint32_t write_data = 0xDEADBEEF;
    uint32_t read_data = 0;
    
    // Effacement de secteur (nécessaire avant écriture)
    xpi_flash_sector_erase(HPM_XPI0, TEST_OFFSET);
    
    // Écriture
    xpi_flash_write(HPM_XPI0, TEST_OFFSET, (uint8_t*)&write_data, 4);
    
    // Lecture
    xpi_flash_read(HPM_XPI0, TEST_OFFSET, (uint8_t*)&read_data, 4);
    
    if (read_data == write_data) {
        printf("Flash Test OK\n");
    } else {
        printf("Flash Test FAIL\n");
    }
}

int main(void) {
    board_init();
    flash_test();
    while(1);
}

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