circuitpython/ports/stm32/sdram.h

/*
 * This file is part of the OpenMV project.
 * Copyright (c) 2013/2014 Ibrahim Abdelkader <i.abdalkader@gmail.com>
 * This work is licensed under the MIT license, see the file LICENSE for details.
 *
 * SDRAM Driver.
 *
 */
#ifndef __SDRAM_H__
#define __SDRAM_H__
bool sdram_init(void);
void *sdram_start(void);
void *sdram_end(void);
void sdram_enter_low_power(void);
void sdram_leave_low_power(void);
void sdram_enter_power_down(void);
bool sdram_test(bool exhaustive);
#endif // __SDRAM_H__
stm32/sdram: Add SDRAM driver from OpenMV project. Taken from https://github.com/openmv/openmv/blob/7fbe54ad4e9dc1c527d9297a3f4c69c365dc9b2c/src/omv/sdram.c Code is is MIT licensed. 2018-07-10 03:30:27 -04:00			`/*`
			`* This file is part of the OpenMV project.`
			`* Copyright (c) 2013/2014 Ibrahim Abdelkader <i.abdalkader@gmail.com>`
			`* This work is licensed under the MIT license, see the file LICENSE for details.`
			`*`
			`* SDRAM Driver.`
			`*`
			`*/`
			`#ifndef __SDRAM_H__`
			`#define __SDRAM_H__`
stm32/sdram: Integrate SDRAM driver into rest of code. If SDRAM is configured and enabled for a board then it is used for the MicroPython GC heap. 2018-07-17 17:13:49 -04:00			`bool sdram_init(void);`
			`void *sdram_start(void);`
			`void *sdram_end(void);`
stm32/sdram: Add SDRAM enter/leave self-refresh mode functions. These functions enable SDRAM data retention in stop mode. Example usage, in mpconfigboard.h: #define MICROPY_BOARD_ENTER_STOP sdram_enter_low_power(); #define MICROPY_BOARD_LEAVE_STOP sdram_leave_low_power(); 2020-12-07 18:55:50 -05:00			`void sdram_enter_low_power(void);`
			`void sdram_leave_low_power(void);`
stm32/sdram: Add function to enable SDRAM power-down mode. Add power-down mode for maximum power saving while in standby mode, to be used by a board if needed. Also fix a typo in a comment. 2022-04-07 10:29:44 -04:00			`void sdram_enter_power_down(void);`
stm32/sdram: Make SDRAM test cache aware, and optional failure with msg. * Make SDRAM test cache-aware for newer MCUs. * Use the defined data bus width (instead of the fixed 8-bits). * Allow optional failure on error with verbose error messages. * Test speed is now inverted (test accepts exhaustive instead fast). 2021-07-09 09:49:25 -04:00			`bool sdram_test(bool exhaustive);`
stm32/sdram: Add SDRAM driver from OpenMV project. Taken from https://github.com/openmv/openmv/blob/7fbe54ad4e9dc1c527d9297a3f4c69c365dc9b2c/src/omv/sdram.c Code is is MIT licensed. 2018-07-10 03:30:27 -04:00			`#endif // __SDRAM_H__`