Ice_cram

FPGA CRAM access. More...

Functions
bool	ice_cram_open (const ice_fpga fpga)
	Reset the iCE40 and set it to CRAM configuration mode and prepare the incoming SPI transfer.
int	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()

int 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

Returns

0, or negative error