Messages in this thread | | | Date | Mon, 22 Jun 2009 16:25:36 +1200 | From | Ryan Mallon <> | Subject | Re: [spi-devel-general] [PATCH] SST25L (non JEDEC) SPI Flash driver |
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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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Ryan Mallon Unit 5, Amuri Park Phone: +64 3 3779127 404 Barbadoes St Fax: +64 3 3779135 PO Box 13 889 Email: ryan@bluewatersys.com Christchurch, 8013 Web: http://www.bluewatersys.com New Zealand Freecall Australia 1800 148 751 USA 1800 261 2934
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