// ucoolib - Microcontroller object oriented library. {{{ // // Copyright (C) 2015 Nicolas Schodet // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. // // }}} #include "ucoo/hal/self_programming/self_programming.hh" #include #include #include namespace ucoo { int self_programming_flash_size () { return DESIG_FLASH_SIZE * 1024; } void self_programming_erase (uint32_t addr, int count) { assert (static_cast (addr - FLASH_BASE + count) <= self_programming_flash_size ()); uint32_t idcode = DBGMCU_IDCODE & DBGMCU_IDCODE_DEV_ID_MASK; int page_size = idcode >= 0x414 ? 2048 : 1024; assert ((addr & (page_size - 1)) == 0); assert ((count & (page_size - 1)) == 0); while (count) { flash_unlock (); flash_erase_page (addr); flash_lock (); addr += page_size; count -= page_size; } assert (count == 0); } void self_programming_write (uint32_t addr, const char *buf, int count) { assert (addr % 2 == 0); assert (reinterpret_cast (buf) % 2 == 0); assert (count % 2 == 0); assert (static_cast (addr - FLASH_BASE + count) <= self_programming_flash_size ()); flash_unlock (); for (int i = 0; i < count; i += 2) flash_program_half_word ( addr + i, *reinterpret_cast (buf + i)); flash_lock (); } } // namespace ucoo