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author | Josh Rahm <joshuarahm@gmail.com> | 2018-01-23 23:14:31 -0700 |
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committer | Josh Rahm <joshuarahm@gmail.com> | 2018-01-23 23:14:31 -0700 |
commit | 7aa10db46c13ad8adc88aadff39b8cf6b15db09d (patch) | |
tree | b1e34a6703de33250b0bd97d34999b687a36a00f /system-clock/src/spin.c | |
parent | acd8afd83da625d36ef39bc01717f29f3b689952 (diff) | |
download | stm32l4-7aa10db46c13ad8adc88aadff39b8cf6b15db09d.tar.gz stm32l4-7aa10db46c13ad8adc88aadff39b8cf6b15db09d.tar.bz2 stm32l4-7aa10db46c13ad8adc88aadff39b8cf6b15db09d.zip |
rename folders to give notion of progression
Diffstat (limited to 'system-clock/src/spin.c')
-rw-r--r-- | system-clock/src/spin.c | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/system-clock/src/spin.c b/system-clock/src/spin.c deleted file mode 100644 index fbd16b6..0000000 --- a/system-clock/src/spin.c +++ /dev/null @@ -1,49 +0,0 @@ -#include "spin.h" -#include "delay.h" -#include "gpio.h" - -#define SHORT_DELAY 200000 -#define LONG_DELAY (SHORT_DELAY * 2) - -static void flash_bit( - uint32_t base, gpio_output_pin_t out_pin, - uint8_t bit /* 0 => 0, non-zero => 1 */) -{ - pin_on(out_pin); - if (bit) { - delay(base * 2); - } else { - delay(base); - } - pin_off(out_pin); - delay(base); -} - -void spin(uint32_t base, uint8_t c) -{ - uint8_t code; - __IO gpio_port_t* port_b = enable_gpio(GPIO_PORT_B); - gpio_output_pin_t pin3 = set_gpio_pin_output(port_b, PIN_3); - - for (;;) { - code = c; - flash_bit(base, pin3, code & 0x80); - code <<= 1; - flash_bit(base, pin3, code & 0x80); - code <<= 1; - flash_bit(base, pin3, code & 0x80); - code <<= 1; - flash_bit(base, pin3, code & 0x80); - - code <<= 1; - flash_bit(base, pin3, code & 0x80); - code <<= 1; - flash_bit(base, pin3, code & 0x80); - code <<= 1; - flash_bit(base, pin3, code & 0x80); - code <<= 1; - flash_bit(base, pin3, code & 0x80); - - delay(base * 4); - } -} |