IDF release/v4.0 08219f3cf

tools/sdk/include/xtensa/eri.h

@@ -0,0 +1,31 @@
+#ifndef ERI_H
+#define ERI_H
+
+#include <stdint.h>
+
+/*
+ The ERI is a bus internal to each Xtensa core. It connects, amongst others, to the debug interface, where it
+ allows reading/writing the same registers as available over JTAG.
+*/
+
+
+/**
+ * @brief  Perform an ERI read
+ * @param  addr : ERI register to read from
+ *
+ * @return Value read
+ */
+uint32_t eri_read(int addr);
+
+
+/**
+ * @brief  Perform an ERI write
+ * @param  addr : ERI register to write to
+ * @param  data : Value to write
+ *
+ * @return Value read
+ */
+void eri_write(int addr, uint32_t data);
+
+
+#endif