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samples: drivers: spi flash testcase check the erased data

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After erasing the sector, compare dat read with expected 0xFF pattern
to decide if erasing is successful instead of relying on the
returned code of the flash_erase function

Signed-off-by: Francois Ramu <francois.ramu@st.com>
This commit is contained in:
Francois Ramu 2024-03-19 15:42:43 +01:00 committed by Anas Nashif
parent 01684df03a
commit 325ae4d32a
1 changed files with 17 additions and 4 deletions
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21
samples/drivers/spi_flash/src/main.c
View file

@ -30,6 +30,8 @@
#define SPI_FLASH_MULTI_SECTOR_TEST
#endif
const uint8_t erased[] = { 0xff, 0xff, 0xff, 0xff };
void single_sector_test(const struct device *flash_dev)
{
const uint8_t expected[] = { 0x55, 0xaa, 0x66, 0x99 };
@ -53,9 +55,20 @@ void single_sector_test(const struct device *flash_dev)
if (rc != 0) {
printf("Flash erase failed! %d\n", rc);
} else {
/* Check erased pattern */
memset(buf, 0, len);
rc = flash_read(flash_dev, SPI_FLASH_TEST_REGION_OFFSET, buf, len);
if (rc != 0) {
printf("Flash read failed! %d\n", rc);
return;
}
if (memcmp(erased, buf, len) != 0) {
printf("Flash erase failed at offset 0x%x got 0x%x\n",
SPI_FLASH_TEST_REGION_OFFSET, *(uint32_t *)buf);
return;
}
printf("Flash erase succeeded!\n");
}
printf("\nTest 2: Flash write\n");
printf("Attempting to write %zu bytes\n", len);
@ -98,7 +111,7 @@ void multi_sector_test(const struct device *flash_dev)
uint8_t buf[sizeof(expected)];
int rc;
printf("\nPerform test on multiple consequtive sectors");
printf("\nPerform test on multiple consecutive sectors");
/* Write protection needs to be disabled before each write or
* erase, since the flash component turns on write protection
@ -125,9 +138,9 @@ void multi_sector_test(const struct device *flash_dev)
printf("Flash read failed! %d\n", rc);
return;
}
if (buf[0] != 0xff) {
if (memcmp(erased, buf, len) != 0) {
printf("Flash erase failed at offset 0x%x got 0x%x\n",
offs, buf[0]);
offs, *(uint32_t *)buf);
return;
}
offs += SPI_FLASH_SECTOR_SIZE;