Posted on May 04, 2016 at 09:03
Dear Experts!
I've tested stsw-stm32026 demo code and that worked perfect.
Next I wrote simple SPI flash driver, and tried to load server files from this flash instead of stm32f107's internal flash.
in httpd.c file,
hs->file = file.data;
hs->left = file.len;
I replaced ''
file.data;
'' with spi flash data address and ''
file.len''
with spi flash data length.
While insidesend_data() function,
tcp_write(pcb, hs->file, len, 0);
I replaced
apiflags
from 0 to 1.
Finally inside this enqueue function
tcp_enqueue(
struct
tcp_pcb *pcb,
void
*arg, u16_t len, u8_t flags, u8_t apiflags, u8_t optflags)
I wrote my own MEMCPY function that copies contents from external SPI-Flash to RAM buffer.
And it all works well, I was able to load web pages from external flash to browser.
Problem with above approach is, it only works fine when there are few mini pages. I have to load many pages with size more than 1 Mega Byte, and it is not suitable to copy all of them in RAM when I've already static contents in external flash.
So my question is, how I can keep apiflag to 0 in this function
tcp_write(pcb, hs->file, len, 0);
and can load pages from external flash?
Or simply, what steps should I take to load web pages from external SPI flash instead of internal Flash with keeping apiflags 0.
Thanks
#lwip #stm32f10x
