Re: [spi-devel-general] [PATCH] SST25L (non JEDEC) SPI Flash driver

Ryan Mallon
2009-06-22T04:23:41Z

Baruch Siach wrote:
> Hi Ryan,
>
> On Mon, Jun 22, 2009 at 03:58:51PM +1200, Ryan Mallon wrote:
>> +static int sst25l_erase_block(struct sst25l_flash *flash, u32 offset)
>> +{
>> + u8 command[4];
>> + int err;
>> +
>> + err = sst25l_write_enable(flash, 1);
>
> Is this enable/disable strictly required for each write/erase? Can't we just
> enable write once?

The datasheet says that prior to any write/erase instruction the write
enable instruction must be sent.

~Ryan

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