Planning to use S29AL016J70TFI020 16Mbit flash in one of our existing product. The existing chip used on the board need pin 15 to be connected to GND. We need the new flash to be a complete drop-in with no hardware change. Is grounding pin 15 (Ry/By#) going to affect the design and the S29 in terms of functionality and reliability?

Dear All,

In our new design we are using external SDRAM, SRAM and NOR Flash on the EMIF.

During layout phase we noticed the address, data and control pins are spread over BGA very untidy and we would like to swap address and data pins inside each own groups.

Could it be possible? If yes is there anything to pay special attention?

Thanks in advance.

Regards

A close study of the VHDL model file provided for the S29CL032J device has discrepancies with the stated behaviour in the device's datasheet. Is the VHDL model more definite than the datasheet, or is the datasheet more definitive? A case in point is the use of DQ5 for reporting program and erase errors, which is missing from the VHDL code (DQ5 is always zero). This might simply be behaviour that the VHDL model was not intended to cover, but if this is the case then there is no clear statement to that effect.  There are other issues too, where it looks like the VHDL may be more correct.

Dear all, regarding flash, has anyone ever encountered any similar problem?The FLASH model MX25R4035F on the official board I'm using now has a capacity of 4Mbit MXIC, which can be burned.Changed to S25FL256S capacity: 256Mbit manufacturer: cypress cannot burn, S25FL256S SPI flash, how to call this driver in the bootloader, and where to change which files, can be modified to support this flash.

Hai,

Recently We had migrated from S29GL01GP (SPANSION) Flash chip to S29GLO1GT (CYPRESS) Flash chip. We need to know whether we can use the same driver support which we had in S29GL01GP for S29GLO1GT or we need to do any modifications for its efficient working?

ご担当者様

お世話になっております。

S25FL064LABMFI013を検討しておりますが、

SPIモード(CPOL=0,CPHA=0)で接続する場合、SCLK端子は外付けにプルアップ抵抗は必要でしょうか？

(現時点では、4.7Kohmでのプルアップ処理を検討しております。）

宜しくお願い致します。