From f2f2afe13ba3ae1da8a546ad85eb9e69ddc70a8a Mon Sep 17 00:00:00 2001 From: Nick Brassel Date: Thu, 12 Mar 2020 12:59:55 +1100 Subject: Add support for STM32L0/L1 onboard EEPROM. (#8002) * Add support for STM32L0/L1 onboard EEPROM. * Update docs/eeprom_driver.md Co-Authored-By: Joel Challis Co-authored-by: Joel Challis --- drivers/eeprom/eeprom_stm32_L0_L1.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 drivers/eeprom/eeprom_stm32_L0_L1.h (limited to 'drivers/eeprom/eeprom_stm32_L0_L1.h') diff --git a/drivers/eeprom/eeprom_stm32_L0_L1.h b/drivers/eeprom/eeprom_stm32_L0_L1.h new file mode 100644 index 0000000000..a35defca8b --- /dev/null +++ b/drivers/eeprom/eeprom_stm32_L0_L1.h @@ -0,0 +1,33 @@ +/* Copyright 2020 Nick Brassel (tzarc) + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#pragma once + +/* + The size used by the STM32 L0/L1 EEPROM driver. +*/ +#ifndef STM32_ONBOARD_EEPROM_SIZE +# ifdef VIA_ENABLE +# define STM32_ONBOARD_EEPROM_SIZE 1024 +# else +# include "eeconfig.h" +# define STM32_ONBOARD_EEPROM_SIZE (((EECONFIG_SIZE + 3) / 4) * 4) // based off eeconfig's current usage, aligned to 4-byte sizes, to deal with LTO and EEPROM page sizing +# endif +#endif + +#if STM32_ONBOARD_EEPROM_SIZE > 128 +# pragma message("Please note: resetting EEPROM using an STM32L0/L1 device takes up to 1 second for every 1kB of internal EEPROM used.") +#endif -- cgit v1.2.3