stm32f4: Enable non-halting SRAM access for RTT on STM32F4 series

ALTracer · ALTracer · commit 6c09a7417215 · 2025-03-06T07:40:01.000+03:00
diff --git a/src/target/stm32f4.c b/src/target/stm32f4.c
@@ -441,6 +441,10 @@ static bool stm32f4_attach(target_s *const target)
 		}
 	}
 
+	/* On STM32F4 SoC, Cortex-M4F allows SRAM access without halting */
+	if (!is_f7 && target->part_id != ID_STM32F20X)
+		target->target_options |= TOPT_NON_HALTING_MEM_IO;
+
 	/* Now we have a base RAM map, rebuild the Flash map */
 	uint8_t split = 0;
 	uint32_t bank_length;

Original file line number	Diff line number	Diff line change
`@@ -441,6 +441,10 @@ static bool stm32f4_attach(target_s *const target)`
`441`	`441`	`}`
`442`	`442`	`}`
`443`	`443`
	`444`	`+ /* On STM32F4 SoC, Cortex-M4F allows SRAM access without halting */`
	`445`	`+ if (!is_f7 && target->part_id != ID_STM32F20X)`
	`446`	`+ target->target_options \|= TOPT_NON_HALTING_MEM_IO;`
	`447`	`+`
`444`	`448`	`/* Now we have a base RAM map, rebuild the Flash map */`
`445`	`449`	`uint8_t split = 0;`
`446`	`450`	`uint32_t bank_length;`