1 files changed, 37 insertions, 0 deletions
diff --git a/teensy/mk20dx256-prefix.c b/teensy/mk20dx256-prefix.c
new file mode 100644
index 0000000000..ea9eec74a2
--- /dev/null
+++ b/teensy/mk20dx256-prefix.c
@@ -0,0 +1,37 @@
+// stm32fxx-prefix.c becomes the initial portion of the generated pins file.
+
+#include <stdio.h>
+#include <stdint.h>
+#include <mk20dx128.h>
+
+#include "teensy_hal.h"
+
+#include "misc.h"
+#include "mpconfig.h"
+#include "qstr.h"
+#include "obj.h"
+#include "pin.h"
+
+#define AF(af_idx, af_fn, af_unit, af_type, af_ptr) \
+{ \
+    { &pin_af_type }, \
+    .idx = (af_idx), \
+    .fn = AF_FN_ ## af_fn, \
+    .unit = (af_unit), \
+    .type = AF_PIN_TYPE_ ## af_fn ## _ ## af_type, \
+    .af_fn = (af_ptr) \
+}
+
+#define PIN(p_port, p_pin, p_num_af, p_af, p_adc_num, p_adc_channel) \
+{ \
+    { &pin_type }, \
+    .name = #p_port #p_pin, \
+    .port = PORT_ ## p_port, \
+    .pin = (p_pin), \
+    .num_af = (p_num_af), \
+    .pin_mask = (1 << (p_pin)), \
+    .gpio = GPIO ## p_port, \
+    .af = p_af, \
+    .adc_num = p_adc_num, \
+    .adc_channel = p_adc_channel, \
+}