+int armv7m_blank_check_memory(struct target_s *target, uint32_t address, uint32_t count, uint32_t* blank)
+{
+ working_area_t *erase_check_algorithm;
+ reg_param_t reg_params[3];
+ armv7m_algorithm_t armv7m_info;
+ int retval;
+ uint32_t i;
+
+ uint16_t erase_check_code[] =
+ {
+ /* loop: */
+ 0xF810, 0x3B01, /* ldrb r3, [r0], #1 */
+ 0xEA02, 0x0203, /* and r2, r2, r3 */
+ 0x3901, /* subs r1, r1, #1 */
+ 0xD1F9, /* bne loop */
+ /* end: */
+ 0xE7FE, /* b end */
+ };
+
+ /* make sure we have a working area */
+ if (target_alloc_working_area(target, sizeof(erase_check_code), &erase_check_algorithm) != ERROR_OK)
+ {
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ }
+
+ /* convert flash writing code into a buffer in target endianness */
+ for (i = 0; i < (sizeof(erase_check_code)/sizeof(uint16_t)); i++)
+ target_write_u16(target, erase_check_algorithm->address + i*sizeof(uint16_t), erase_check_code[i]);
+
+ armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
+ armv7m_info.core_mode = ARMV7M_MODE_ANY;
+
+ init_reg_param(®_params[0], "r0", 32, PARAM_OUT);
+ buf_set_u32(reg_params[0].value, 0, 32, address);
+
+ init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
+ buf_set_u32(reg_params[1].value, 0, 32, count);
+
+ init_reg_param(®_params[2], "r2", 32, PARAM_IN_OUT);
+ buf_set_u32(reg_params[2].value, 0, 32, 0xff);
+
+ if ((retval = target_run_algorithm(target, 0, NULL, 3, reg_params,
+ erase_check_algorithm->address, erase_check_algorithm->address + (sizeof(erase_check_code)-2), 10000, &armv7m_info)) != ERROR_OK)
+ {
+ destroy_reg_param(®_params[0]);
+ destroy_reg_param(®_params[1]);
+ destroy_reg_param(®_params[2]);
+ target_free_working_area(target, erase_check_algorithm);
+ return 0;
+ }
+
+ *blank = buf_get_u32(reg_params[2].value, 0, 32);
+
+ destroy_reg_param(®_params[0]);
+ destroy_reg_param(®_params[1]);
+ destroy_reg_param(®_params[2]);
+
+ target_free_working_area(target, erase_check_algorithm);
+
+ return ERROR_OK;
+}
+
+/********************************************************************************************************************
+* Return the debug ap baseaddress in hexadecimal, no extra output to simplify script processing
+*********************************************************************************************************************/
+int handle_dap_baseaddr_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target = get_current_target(cmd_ctx);
+ armv7m_common_t *armv7m = target->arch_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
+ uint32_t apsel, apselsave, baseaddr;
+ int retval;
+
+ apsel = swjdp->apsel;
+ apselsave = swjdp->apsel;
+ if (argc > 0)
+ {
+ apsel = strtoul(args[0], NULL, 0);
+ }
+ if (apselsave != apsel)
+ {
+ dap_ap_select(swjdp, apsel);
+ }
+
+ dap_ap_read_reg_u32(swjdp, 0xF8, &baseaddr);
+ retval = swjdp_transaction_endcheck(swjdp);
+ command_print(cmd_ctx, "0x%8.8" PRIx32 "", baseaddr);
+
+ if (apselsave != apsel)
+ {
+ dap_ap_select(swjdp, apselsave);
+ }
+
+ return retval;
+}
+
+
+/********************************************************************************************************************
+* Return the debug ap id in hexadecimal, no extra output to simplify script processing
+*********************************************************************************************************************/
+extern int handle_dap_apid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target = get_current_target(cmd_ctx);
+ armv7m_common_t *armv7m = target->arch_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
+ uint32_t apsel, apselsave, apid;
+ int retval;
+
+ apsel = swjdp->apsel;
+ apselsave = swjdp->apsel;
+ if (argc > 0)
+ {
+ apsel = strtoul(args[0], NULL, 0);
+ }
+
+ if (apselsave != apsel)
+ {
+ dap_ap_select(swjdp, apsel);
+ }
+
+ dap_ap_read_reg_u32(swjdp, 0xFC, &apid);
+ retval = swjdp_transaction_endcheck(swjdp);
+ command_print(cmd_ctx, "0x%8.8" PRIx32 "", apid);
+ if (apselsave != apsel)
+ {
+ dap_ap_select(swjdp, apselsave);
+ }
+
+ return retval;
+}
+
+int handle_dap_apsel_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target = get_current_target(cmd_ctx);
+ armv7m_common_t *armv7m = target->arch_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
+ uint32_t apsel, apid;
+ int retval;
+
+ apsel = 0;
+ if (argc > 0)
+ {
+ apsel = strtoul(args[0], NULL, 0);
+ }
+
+ dap_ap_select(swjdp, apsel);
+ dap_ap_read_reg_u32(swjdp, 0xFC, &apid);
+ retval = swjdp_transaction_endcheck(swjdp);
+ command_print(cmd_ctx, "ap %i selected, identification register 0x%8.8" PRIx32 "", (int)apsel, apid);
+
+ return retval;
+}
+
+int handle_dap_memaccess_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target = get_current_target(cmd_ctx);
+ armv7m_common_t *armv7m = target->arch_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
+ uint32_t memaccess_tck;
+
+ memaccess_tck = swjdp->memaccess_tck;
+ if (argc > 0)
+ {
+ memaccess_tck = strtoul(args[0], NULL, 0);
+ }
+
+ swjdp->memaccess_tck = memaccess_tck;
+ command_print(cmd_ctx, "memory bus access delay set to %i tck", (int)(swjdp->memaccess_tck));
+
+ return ERROR_OK;
+}
+
+int handle_dap_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target = get_current_target(cmd_ctx);
+ armv7m_common_t *armv7m = target->arch_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
+ int retval;
+ uint32_t apsel;
+
+ apsel = swjdp->apsel;
+ if (argc > 0)
+ {
+ apsel = strtoul(args[0], NULL, 0);
+ }
+
+ retval = dap_info_command(cmd_ctx, swjdp, apsel);
+
+ return retval;
+}
+