Ice_cram

FPGA CRAM access. More...

Functions
void	ice_cram_open (void)
	Reset the iCE40 and set it to CRAM configuration mode and prepare the incoming SPI transfer.
void	ice_cram_write (const uint8_t *buf, size_t len)
	Send the bitstream to the iCE40 CRAM, which configures the FPGA circuitry.
bool	ice_cram_close (void)
	Terminate the SPI transaction and prepare the FPGA to start, waiting until it finishes booting.

Detailed Description

FPGA CRAM access.

Function Documentation

ice_cram_close()

bool ice_cram_close

(

void

)

Terminate the SPI transaction and prepare the FPGA to start, waiting until it finishes booting.

Returns

true if the FPGA configuration succeeded or false if it timed out.

ice_cram_write()

void ice_cram_write	(	const uint8_t *	buf,
		size_t	len
	)

Send the bitstream to the iCE40 CRAM, which configures the FPGA circuitry.

Parameters

buf	pointer to bitstream data to flush to the iCE40
len	size of that buffer