From f74894844edd6a7a7ce286bb56475314368357ee Mon Sep 17 00:00:00 2001
From: ALTracer <11005378+ALTracer@users.noreply.github.com>
Date: Sun, 19 Jan 2025 20:30:40 +0300
Subject: [PATCH] nrf51: Enable non-halting SRAM access for RTT on nRF52 series

---
 src/target/nrf51.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/target/nrf51.c b/src/target/nrf51.c
index 7400254f57f..b95e0f08721 100644
--- a/src/target/nrf51.c
+++ b/src/target/nrf51.c
@@ -144,6 +144,8 @@ bool nrf51_probe(target_s *t)
 		uint32_t ram_size = target_mem32_read32(t, NRF52_INFO_RAM);
 		t->driver = "nRF52";
 		t->target_options |= TOPT_INHIBIT_NRST;
+		/* On nRF52 SoC, Cortex-M4F allows SRAM access without halting */
+		t->target_options |= TOPT_NON_HALTING_MEM_IO;
 		target_add_ram32(t, 0x20000000U, ram_size * 1024U);
 		nrf51_add_flash(t, 0, page_size * code_size, page_size);
 		nrf51_add_flash(t, NRF51_UICR, page_size, page_size);