diff options
Diffstat (limited to 'src/atsamd/spi.c')
| -rw-r--r-- | src/atsamd/spi.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/atsamd/spi.c b/src/atsamd/spi.c index 4bf281bc..96125d5b 100644 --- a/src/atsamd/spi.c +++ b/src/atsamd/spi.c @@ -13,10 +13,10 @@ void spi_init(uint32_t bus, SercomSpi *ss, uint32_t ctrla, uint32_t baud) { - static int have_run_init[8]; - if (have_run_init[bus]) + static uint8_t have_run_init; + if (have_run_init & (1<<bus)) return; - have_run_init[bus] = 1; + have_run_init |= 1<<bus; ss->CTRLA.reg = 0; ss->CTRLA.reg = ctrla & ~SERCOM_SPI_CTRLA_ENABLE; |