diff options
| author | Keith Packard <keithp@keithp.com> | 2012-10-06 19:39:15 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2012-10-06 19:39:15 -0700 |
| commit | 6d47dd1d9104745cf68bef23b066c5033ca30a84 (patch) | |
| tree | d82a0f9a21ba3f2884c098b30b8d4cd4752fab29 /src | |
| parent | 35cb2dc51708ab572a4c72422e5902a313eda58e (diff) | |
altos/stm: Set SPI clock high for disabled SPI busses
This should avoid an accidental low->high transition when switching
between multiple SPI busses.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/stm/ao_spi_stm.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/stm/ao_spi_stm.c b/src/stm/ao_spi_stm.c index 5b823e3e..599d7ee0 100644 --- a/src/stm/ao_spi_stm.c +++ b/src/stm/ao_spi_stm.c @@ -276,19 +276,19 @@ ao_spi_disable_index(uint8_t spi_index) case STM_SPI_INDEX(1): switch (spi_index) { case AO_SPI_1_PA5_PA6_PA7: - stm_gpio_set(&stm_gpioa, 5, 0); + stm_gpio_set(&stm_gpioa, 5, 1); stm_moder_set(&stm_gpioa, 5, STM_MODER_OUTPUT); stm_moder_set(&stm_gpioa, 6, STM_MODER_INPUT); stm_moder_set(&stm_gpioa, 7, STM_MODER_OUTPUT); break; case AO_SPI_1_PB3_PB4_PB5: - stm_gpio_set(&stm_gpiob, 3, 0); + stm_gpio_set(&stm_gpiob, 3, 1); stm_moder_set(&stm_gpiob, 3, STM_MODER_OUTPUT); stm_moder_set(&stm_gpiob, 4, STM_MODER_INPUT); stm_moder_set(&stm_gpiob, 5, STM_MODER_OUTPUT); break; case AO_SPI_1_PE13_PE14_PE15: - stm_gpio_set(&stm_gpioe, 13, 0); + stm_gpio_set(&stm_gpioe, 13, 1); stm_moder_set(&stm_gpioe, 13, STM_MODER_OUTPUT); stm_moder_set(&stm_gpioe, 14, STM_MODER_INPUT); stm_moder_set(&stm_gpioe, 15, STM_MODER_OUTPUT); @@ -298,13 +298,13 @@ ao_spi_disable_index(uint8_t spi_index) case STM_SPI_INDEX(2): switch (spi_index) { case AO_SPI_2_PB13_PB14_PB15: - stm_gpio_set(&stm_gpiob, 13, 0); + stm_gpio_set(&stm_gpiob, 13, 1); stm_moder_set(&stm_gpiob, 13, STM_MODER_OUTPUT); stm_moder_set(&stm_gpiob, 14, STM_MODER_INPUT); stm_moder_set(&stm_gpiob, 15, STM_MODER_OUTPUT); break; case AO_SPI_2_PD1_PD3_PD4: - stm_gpio_set(&stm_gpiod, 1, 0); + stm_gpio_set(&stm_gpiod, 1, 1); stm_moder_set(&stm_gpiod, 1, STM_MODER_OUTPUT); stm_moder_set(&stm_gpiod, 3, STM_MODER_INPUT); stm_moder_set(&stm_gpiod, 4, STM_MODER_OUTPUT); |