blackpill-f4: Change slew rate at high SWCLK frequencies

blackmagic-debug · Jan 28, 2025 · 3773ef9 · 3773ef9
1 parent fa5388f
commit 3773ef9
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/src/platforms/common/blackpill-f4/blackpill-f4.c b/src/platforms/common/blackpill-f4/blackpill-f4.c
@@ -200,6 +200,15 @@ uint32_t platform_target_voltage_sense(void)
 }
 #endif
 
+void platform_ospeed_update(const uint32_t frequency)
+{
+	const uint8_t ospeed = (frequency > 2097152U) ? GPIO_OSPEED_25MHZ : GPIO_OSPEED_2MHZ;
+
+	gpio_set_output_options(TCK_PORT, GPIO_OTYPE_PP, ospeed, TCK_PIN);
+	gpio_set_output_options(TMS_PORT, GPIO_OTYPE_PP, ospeed, TMS_PIN);
+	gpio_set_output_options(TDI_PORT, GPIO_OTYPE_PP, ospeed, TDI_PIN);
+}
+
 void platform_target_clk_output_enable(bool enable)
 {
 	if (enable) {