--- /dev/null
+/****************************************************************************
+ * core/iap.c
+ *
+ *
+ * Copyright 2015 Nathael Pajani <nathael.pajani@ed3l.fr>
+ *
+ * This file is derived from Work covered by the Apache 2.0 licence.
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Original sources should be found there :
+ * https://github.com/mbedmicro/CMSIS-DAP.git
+ * Original file name is bootloader/hal/TARGET_NXP/TARGET_LPC11U35/flash_hal.c
+ *
+ * Original copyright notice :
+ * CMSIS-DAP Interface Firmware
+ * Copyright (c) 2009-2013 ARM Limited
+ *
+ * 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 3 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 <http://www.gnu.org/licenses/>.
+ *
+ *****************************************************************************/
+
+#include "lib/stdint.h"
+#include "core/iap.h"
+
+
+/* IAP - In-Application Programming
+ * Driver for the IAP interface of the LPC122x.
+ * This interface allows In-Application programming of the internal flash memory of the LPC122x
+ * microcontroller.
+ * Refer to LPC122x documentation (UM10441.pdf) for more information.
+ */
+
+static uint32_t get_sector_number(uint32_t addr)
+{
+ uint32_t sector = 0;
+
+ sector = addr >> 12; /* 4kB Sector */
+ if (sector >= 0x10) {
+ sector = 0x0E + (sector >> 3); /* 32kB Sector */
+ }
+
+ return sector;
+}
+
+/* Erase one sector, given a flash address
+ * return 0 on success.
+ */
+int flash_hal_erase_sector(uint32_t addr)
+{
+ uint32_t sector = get_sector_number(addr);
+ int ret = 0;
+
+ /* Prepare sector for erase */
+ ret = iap_prepare_flash(sector, sector);
+ if (ret != IAP_STATUS_CMD_SUCCESS) {
+ return ret;
+ }
+ /* Erase sector */
+ return iap_erase_flash_sectors(sector, sector);
+}
+
+/* Flash a binary image chunk to a sector. */
+int flash_hal_program_page(uint32_t addr, uint32_t size, unsigned char *buf)
+{
+ uint32_t sector = 0;
+ int ret = 0;
+
+ /* If this goes to the beginning of the Flash image, check that the image is valid. */
+ if (addr == 0) {
+ uint32_t crp = *((uint32_t *)(buf + CRP_ADDRESS));
+ uint32_t checksum = 0;
+
+ if (IS_CRP_VALUE(crp)) {
+ /* CRP is enabled, exit. */
+ return -1;
+ }
+
+ /* Compute a valid user code */
+ checksum = *((uint32_t *)(buf + 0x00)) + *((uint32_t *)(buf + 0x04)) +
+ *((uint32_t *)(buf + 0x08)) + *((uint32_t *)(buf + 0x0C)) +
+ *((uint32_t *)(buf + 0x10)) + *((uint32_t *)(buf + 0x14)) +
+ *((uint32_t *)(buf + 0x18));
+ *((uint32_t *)(buf + 0x1C)) = 0 - checksum;
+ }
+
+ sector = get_sector_number(addr);
+
+ /* Prepare sector for write */
+ ret = iap_prepare_flash(sector, sector);
+ if (ret != IAP_STATUS_CMD_SUCCESS) {
+ return ret;
+ }
+
+ /* FIXME : in original code, size was hardcoded to 1024 */
+ return iap_copy_ram_to_flash(addr, (uint32_t)buf, size);
+}
+
--- /dev/null
+/****************************************************************************
+ * core/vector_table.c
+ *
+ *
+ * Copyright 2015 Nathael Pajani <nathael.pajani@ed3l.fr>
+ *
+ * This file is derived from Work covered by the Apache 2.0 licence.
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Original sources should be found there :
+ * https://github.com/mbedmicro/CMSIS-DAP.git
+ * Original file name is bootloader/hal/TARGET_NXP/TARGET_LPC11U35/vector_table.c
+ *
+ * Original copyright notice :
+ * CMSIS-DAP Interface Firmware
+ * Copyright (c) 2009-2013 ARM Limited
+ *
+ * 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 3 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 <http://www.gnu.org/licenses/>.
+ *
+ *****************************************************************************/
+
+/* This file holds the code related to the vector table relocation in RAM.
+ * This mechanism is used by the IAP code before re-programming the first sector of the internal
+ * flash memory which usually holds the active vector table.
+ */
+
+#include "lib/stdint.h"
+#include "core/system.h"
+#include "core/iap.h"
+
+#define NVIC_NUM_VECTORS (16 + 32) /* CORE + MCU Peripherals */
+#define NVIC_RAM_VECTOR_ADDRESS (0x10000000) /* Vectors positioned at start of RAM */
+
+void relocate_vector_table(void)
+{
+ struct lpc_sys_config* sysctrl = LPC_SYS_CONFIG;
+ int i;
+ /* Space for dynamic vectors, initialised to allocate in R/W */
+ static volatile uint32_t * vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
+
+ /* Copy and switch to dynamic vectors if first time called */
+ if((sysctrl->sys_mem_remap & 0x3) != 0x1) {
+ uint32_t *old_vectors = (uint32_t *)START_APP_ADDRESS;
+ for(i = 0; i < NVIC_NUM_VECTORS; i++) {
+ vectors[i] = old_vectors[i];
+ }
+ sysctrl->sys_mem_remap = 0x1;
+ }
+}
* of the micro-controller (for bootloaders, drivers, loadable RTOS tasks, ....)
*/
+#define START_APP_ADDRESS (0x5000)
+#define INITIAL_SP (*(uint32_t *)(START_APP_ADDRESS))
+#define RESET_HANDLER (*(uint32_t *)(START_APP_ADDRESS + 4))
+/* CRP Handling */
+#define CRP_ADDRESS (0x000002FC)
+#define NO_ISP (0x4E697370)
+#define CRP1 (0x12345678)
+#define CRP2 (0x87654321)
+#define CRP3 (0x43218765)
+#define IS_CRP_VALUE(v) ((v==NO_ISP) || (v==CRP1) || (v==CRP2) || (v==CRP3))
+
+#define LPC12XX_SECTOR_SIZE (0x1000)
+#define LPC1224_101_NB_SECTOR (8)
+#define LPC1224_121_NB_SECTOR (12)
+#define LPC1225_301_NB_SECTOR (16)
+#define LPC1225_321_NB_SECTOR (20)
+#define LPC1226_301_NB_SECTOR (24)
+#define LPC1227_301_NB_SECTOR (32)
+#define LPC12XX_END_FLASH(version) (((version) ## _NB_SECTOR) * LPC12xx_SECTOR_SIZE)
+
/* Return values */
/* Return the part ID */
uint32_t iap_read_part_id(void);
+/* Copy the whole unique id table (four 32bits words) in the memory pointed by uid_table.
+ * uid_table must have enougth room for the whole unique id table.
+ * Returns the IAP status.
+ */
+uint32_t iap_read_unique_id(uint32_t* uid_table);
+
+
+
+/*******************************************************************************/
+/* IAP Helpers */
+
+/* Relocate the vector table so that the first sector of the internal flash can be erased
+ * and written
+*/
+void relocate_vector_table(void);
+
+/* Erase one sector, given a flash address
+ * return 0 on success.
+ */
+int flash_hal_erase_sector(uint32_t addr);
+
+/* Flash a binary image chunk to flash.
+ * Flash must have been erased first.
+ * return 0 on success.
+ */
+int flash_hal_program_page (uint32_t addr, uint32_t sz, unsigned char *buf);
#endif /* CORE_IAP_H */
