From 0dead06bb474234ee32c0d5b73acdf85088cd5a2 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Tue, 14 May 2013 18:52:15 -0700 Subject: altos: Try to fix MPU6000 SPI mode Hold the SPI mutex after boot and until the I2C mode has been disabled Signed-off-by: Keith Packard --- src/stm/ao_arch_funcs.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'src/stm') diff --git a/src/stm/ao_arch_funcs.h b/src/stm/ao_arch_funcs.h index 1e78cabc..6fe86e62 100644 --- a/src/stm/ao_arch_funcs.h +++ b/src/stm/ao_arch_funcs.h @@ -87,13 +87,16 @@ extern uint16_t ao_spi_speed[STM_NUM_SPI]; void ao_spi_init(void); +#define ao_spi_set_cs(reg,mask) ((reg)->bsrr = ((uint32_t) (mask)) << 16) +#define ao_spi_clr_cs(reg,mask) ((reg)->bsrr = (mask)) + #define ao_spi_get_mask(reg,mask,bus, speed) do { \ ao_spi_get(bus, speed); \ - (reg)->bsrr = ((uint32_t) mask) << 16; \ + ao_spi_set_cs(reg,mask); \ } while (0) #define ao_spi_put_mask(reg,mask,bus) do { \ - (reg)->bsrr = mask; \ + ao_spi_clr_cs(reg,mask); \ ao_spi_put(bus); \ } while (0) -- cgit v1.2.3