Add basic spi code

Implements the bit bang spi protocol
2022-03-10 10:26:36 -06:00
parent 80d49b4f87
commit fff193ea0f
3 changed files with 58 additions and 0 deletions
--- a/sw/spi.h
+++ b/sw/spi.h
@@ -0,0 +1,8 @@
+#ifndef _SPI_H
+#define _SPI_H
+
+#include <stdint.h>
+
+void spi_write_byte(uint8_t);
+
+#endif