Decoded GET_DEV_INFO (0x0302) response. More...

#include <ra8_epaper.h>

Data Fields
uint16_t	panel_width
	Reported panel width (px).
uint16_t	panel_height
	Reported panel height (px).
uint32_t	image_buf_base
	Controller frame-RAM base.
char	fw_version [k_ra8_epaper_ver_chars+1U]
	Firmware version, NUL-term.
char	lut_version [k_ra8_epaper_ver_chars+1U]
	LUT version, NUL-terminated.

Detailed Description

Decoded GET_DEV_INFO (0x0302) response.

The controller answers GET_DEV_INFO with 20 16-bit words: panel width, panel height, image-buffer base address low half, image-buffer base address high half, then eight words of firmware-version string and eight words of waveform-LUT-version string (IT8951 I80/SPI/I2C programming guide, I80_GET_DEV_INFO). The LUT version is the value that decides waveform mode numbering – feed it to ra8_epaper_waveform_cfg_for_lut.

Invariant: fw_version and lut_version are always NUL-terminated.; Populated once by ra8_epaper_init and read-only after.

Example:: ra8_epaper_dev_info_t info = {};

if (ra8_epaper_dev_info(&info) == k_ra8_ok) {

ra8_epaper_waveform_cfg_t wf = {};

(void)ra8_epaper_waveform_cfg_for_lut(info.lut_version, &wf);

}

ra8_epaper_dev_info
ra8_err_t ra8_epaper_dev_info(ra8_epaper_dev_info_t *out_info)
Hand back the GET_DEV_INFO block captured during init.
Definition ra8_epaper.c:701

ra8_epaper_waveform_cfg_for_lut
ra8_err_t ra8_epaper_waveform_cfg_for_lut(const char *lut_version, ra8_epaper_waveform_cfg_t *out_cfg)
Fill a waveform map from a controller-reported LUT version.
Definition ra8_epaper_geom.c:182

k_ra8_ok
@ k_ra8_ok
Success – operation completed with all postconditions satisfied.
Definition ra8_err.h:119

ra8_epaper_dev_info_t
Decoded GET_DEV_INFO (0x0302) response.
Definition ra8_epaper.h:247

ra8_epaper_dev_info_t::lut_version
char lut_version[k_ra8_epaper_ver_chars+1U]
LUT version, NUL-terminated.
Definition ra8_epaper.h:252

ra8_epaper_waveform_cfg_t
Per-panel map from ra8_epaper_waveform_t onto LUT mode numbers.
Definition ra8_epaper.h:148