static volatile uint8_t g_ss_number;
static volatile spi_mode_t g_spi_mode;
static volatile uint8_t g_slave_selected;
-static volatile uint8_t g_spi_order;
+/*static*/ volatile uint8_t g_spi_order;
static volatile spi_format_t g_spi_format;
static volatile spi_mode_t g_spi_mode;
static volatile spi_clk_rate_t g_spi_clk_rate;