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-rwxr-xr-xtcl/target/stm32f7x.cfg8
-rw-r--r--tcl/target/stm32h7x.cfg8
2 files changed, 16 insertions, 0 deletions
diff --git a/tcl/target/stm32f7x.cfg b/tcl/target/stm32f7x.cfg
index 562de30..e06a345 100755
--- a/tcl/target/stm32f7x.cfg
+++ b/tcl/target/stm32f7x.cfg
@@ -145,3 +145,11 @@ $_TARGETNAME configure -event reset-start {
# Reduce speed since CPU speed will slow down to 16MHz with the reset
adapter_khz 2000
}
+
+# Set CSW[27], which according to ARM ADI v5 appendix E1.4 maps to AHB signal
+# HPROT[3], which according to AMBA AHB/ASB/APB specification chapter 3.7.3
+# makes the data access cacheable. This allows reading and writing data in the
+# CPU cache from the debugger, which is far more useful than going straight to
+# RAM when operating on typical variables, and is generally no worse when
+# operating on special memory locations.
+$_CHIPNAME.dap apcsw 0x08000000 0x08000000
diff --git a/tcl/target/stm32h7x.cfg b/tcl/target/stm32h7x.cfg
index 10477a5..e2ea8a8 100644
--- a/tcl/target/stm32h7x.cfg
+++ b/tcl/target/stm32h7x.cfg
@@ -92,3 +92,11 @@ $_TARGETNAME configure -event reset-init {
# Clock after reset is HSI at 64 MHz, no need of PLL
adapter_khz 4000
}
+
+# Set CSW[27], which according to ARM ADI v5 appendix E1.4 maps to AHB signal
+# HPROT[3], which according to AMBA AHB/ASB/APB specification chapter 3.7.3
+# makes the data access cacheable. This allows reading and writing data in the
+# CPU cache from the debugger, which is far more useful than going straight to
+# RAM when operating on typical variables, and is generally no worse when
+# operating on special memory locations.
+$_CHIPNAME.dap apcsw 0x08000000 0x08000000