Hi!
I have problem with page program NOR flash memory using FLEX SPI with AHB.
I want store data using direct write to mapped address:
for(int i = 0; i < 0x100; i++)
{
*(uint8_t *)(FlexSPI_AMBA_BASE + i) = i;
}
However, Chip Select interrupts programming sequence. 
the manual says that: "For Flash reading/programming triggered by AHB command: Internal async FIFO for flash reading/programming should never be full/empty."
How to check TX FIFO status correctly ?
Regards,
Kamil
Hi Kamil ,
Thank you for your interest in NXP Semiconductor products and for the opportunity to serve you.
1) How to check TX FIFO status correctly?
-- Actually, only two interrupts can indicate the status of the async FIFO.
I was wondering if you can introduce hardware design about the external QSPI,
it close relates to AHB read and write operation.
Have a great day,
TIC
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