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author | root <root@lamia.panaceas.james.local> | 2015-07-16 08:35:16 +0100 |
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committer | root <root@lamia.panaceas.james.local> | 2015-07-16 08:35:16 +0100 |
commit | b3df20a08974584076e802d5f7061a8a8cb96930 (patch) | |
tree | b380025284e65f42b57134abe988a0a04db93ec8 /app/led.c | |
download | stm32_ade-b3df20a08974584076e802d5f7061a8a8cb96930.tar.gz stm32_ade-b3df20a08974584076e802d5f7061a8a8cb96930.tar.bz2 stm32_ade-b3df20a08974584076e802d5f7061a8a8cb96930.zip |
initial commit
Diffstat (limited to 'app/led.c')
-rw-r--r-- | app/led.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/app/led.c b/app/led.c new file mode 100644 index 0000000..64c4660 --- /dev/null +++ b/app/led.c @@ -0,0 +1,48 @@ +#include "project.h" + + +static int led = 0; + +void +led_init (void) +{ + gpio_set_mode (GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO8); + gpio_set_mode (GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO9); +} + + +void +led_clear (void) +{ + gpio_set (GPIOB, GPIO8); + gpio_set (GPIOB, GPIO9); +} + +void +led_set (uint32_t v) +{ + gpio_clear (GPIOB, v); + led = 200; +} + +void +led_tick (void) +{ + static int c; + + if (led) + { + led--; + if (!led) + led_clear (); + } + else + { + led_set (c ? GPIO8 : GPIO9); + c ^= 1; + } + + +} |