Nor Flash Forum Discussions

hello,

I want to replace my Winbond flash w25q256jv with S25FL256SAGNFI010.which changes I have to do to configure flash or else in the program and in the memory sector.

Regards,

Shivam Shah

【use】
STM32H723S25FL256LAGMFI003
document
Number: 002-00124 Revised Edition * H

I am currently writing a write / read check program using S25FL256LAGMFI003.
Writing / reading from 0x00000000 to 0x01FFFFFE seems to be successful.
, Clear / write seems to fail only at 0x01FFFFFF.
We considered the possibility of write protection.
So I checked the values ​​in the status register and the settings register, but the initial values ​​were read.
STATUS1 = 0x00
Statsu2 = 0x00
CONFIG1 = 0x00
CONFIG2 = 0x00
CONFIG3 = 0x78

Next, we considered the possibility of being protected by the pointer area protection register.
However, the register read command (0x65) must read the pointer area protection register successfully.
I stumbled further here. The address read command is only partially successful.
First, I read status register 1 using any register read command and it succeeded.
Then I read configuration register 1, but couldn't read the value.

1. Isn't the final address (0x01FFFFFF) writable for protection? Or is it an area that cannot be written in the first place?
2. Do you know why the register read command (0x65) fails?

Hi

I need to develop a SPIFI driver for this device: S25HL512TDPNHI010.

I cannot find any technical information related to JEDEC Manufacturing ID.

How can I get a more detailed documentation on this part including JEDEC manufacturing ID and extended IDs?

Many thanks

Dani

S34ML01G100TFI00 used in my PCB, sometimes as  follows problem will happen( but sometimes it works well). I want to know why this phenomenon happened，how can I know the nand is not good, before it goes wrong. 

Stm32h743 is connected via FMC s29gl064s，and cubeide configed. As shown below:

RCC configured as below：

Read flash ID：

sts = HAL_NOR_Read_ID(&hnor1, &id);
printf("sts1 = %d\n", sts);

printf("nor_id = %04x %04x %04x %04x\n",
id.Manufacturer_Code,
id.Device_Code1,
id.Device_Code2,
id.Device_Code3);

Return：nor_id = 0001 227e 2213 2201

EraseChip：

sts = HAL_NOR_Erase_Block(&hnor1, 0, 0x60000000);
printf("sts_erase_block = %d\n", sts);

do {
sts = HAL_NOR_GetStatus(&hnor1, 0x60000000, 500);
printf("HAL_NOR_GetStatus1 = %d\n", sts);
} while(sts);

Return status look like correct.

Write operation：

uint16_t txbuf[1024] = {0}, rxbuf[1024] = {0};
#if 1
for (i = 0; i < 1024; i++) {
txbuf[i] = 0x5a;
}
#endif
sts = HAL_NOR_ProgramBuffer(&hnor1, 0, txbuf, 256);
printf("sts_write_buf = %d\n", sts);

do {
sts = HAL_NOR_GetStatus(&hnor1, 0x60000000, 500);
printf("HAL_NOR_GetStatus1 = %d\n", sts);
} while(sts);

Return status look like correct.

Read operation：

sts = HAL_NOR_ReadBuffer(&hnor1, 0, rxbuf, 256);
printf("sts_read_buf = %d\n", sts);
#if 1
do {
sts = HAL_NOR_GetStatus(&hnor1, 0x60000000, 500);
printf("HAL_NOR_GetStatus1 = %d\n", sts);
} while(sts);
#endif
for (i = 0; i < 256; i++) {
if (!(i % 8)) {
printf("\n");
}
printf("%04X ", rxbuf[i]);
}
printf("\n");

Return resaults as below：

Hi 

I am using STM32F723 mico controller connected to S25FL256 spansion chip.

I am trying to configure the spansion chip to QPI mode, but not able to change to the volatile memories. It is not throwing any error, but the registers are not getting changed.

Even i am not able to do :

1. sector erase

2. write to the flash memory.

3. Do memory map read

The connection is as below

GPIOB_PIN_2  -------------------- > QSPI_SCK

GPIOB_PIN_5 ----------------------> QSPI_nCS

GPIOF_PIN_8-----------------------> QSPI_SIO0

GPIOF_PIN_9------------------------>QSPI_SIO1

GPIOF_PIN_7------------------------>QSPI_SIO2  (directly connected, no pullup or not grounded)

GPIOF_PIN_6------------------------>QSPI_SIO3  (directly connected, no pullup or not grounded)

When i read the status registers and configuration registers, below is what i read.

Status register 1 (volatile)  -  0x10

Config Register 1                    - 0x21

Config Register 2                    - 0x00

Config Register 3                    - 0x78

My requirement is to configure for QUAD SPI mode, un-lock all the memories.

I tried sending the following commands in sequence, but i am not able to configure.

WREN (Tried WENV also) -------> WRR (With the respective register changes)

Why i am not able to configure? Any clue?

Hello,

I have a query regarding S29GL064S70 Flash.

Is the RESET# pin need to be driven low after Power up of the board containing this flash?

Does it need to be pulsed low, before the flash can be used for other operations?

Or can we pull-up the RESET# pin permanently to VCC?

Let me know answers to above queries.

Thanks and Regards,

Anil Patil