stm32l4: Enable non-halting SRAM access for RTT on STM32G47x

blackmagic-debug · Jan 6, 2025 · f9c6183 · f9c6183
1 parent 7b381b9
commit f9c6183
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/target/stm32l4.c b/src/target/stm32l4.c
@@ -847,6 +847,9 @@ static bool stm32l4_attach(target_s *const target)
 	} else
 		stm32l4_add_flash(target, STM32L4_FLASH_BANK_1_BASE, flash_len * 1024U, 0x800, UINT32_MAX);
 
+	/* STM32G47x SoC allows the debugger to read SRAM while CM4 is running */
+	if (device->device_id == ID_STM32G47)
+		target->target_options |= TOPT_NON_HALTING_MEM_IO;
 	/* Clear all errors in the status register. */
 	stm32l4_flash_write32(target, FLASH_SR, stm32l4_flash_read32(target, FLASH_SR));
 	return true;