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| author | Kevin O'Connor <kevin@koconnor.net> | 2017-08-06 19:26:48 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2017-08-07 19:39:57 -0400 |
| commit | e12527b8950f8f5ed4f7bb638bcf78abf3fc818c (patch) | |
| tree | 02db022e796e1b2d34cab1921112f6711cffae48 /src/avr/main.c | |
| parent | 114c8c5b6d9a0286ac5e457848965e4491a5b595 (diff) | |
| download | kutter-e12527b8950f8f5ed4f7bb638bcf78abf3fc818c.tar.gz kutter-e12527b8950f8f5ed4f7bb638bcf78abf3fc818c.tar.xz kutter-e12527b8950f8f5ed4f7bb638bcf78abf3fc818c.zip | |
avr: Move prescaler and sleep initialization from timer.c to main.c
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'src/avr/main.c')
| -rw-r--r-- | src/avr/main.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/avr/main.c b/src/avr/main.c index e3de4c03..9737c2be 100644 --- a/src/avr/main.c +++ b/src/avr/main.c @@ -39,6 +39,27 @@ dynmem_end(void) * Misc functions ****************************************************************/ +// Initialize the clock prescaler (if necessary) +void +prescaler_init(void) +{ + if (CONFIG_AVR_CLKPR != -1 && (uint8_t)CONFIG_AVR_CLKPR != CLKPR) { + irqstatus_t flag = irq_save(); + CLKPR = 0x80; + CLKPR = CONFIG_AVR_CLKPR; + irq_restore(flag); + } +} +DECL_INIT(prescaler_init); + +// The "sleep" instruction should cause the processor to enter "idle mode" +void +sleep_init(void) +{ + SMCR = 0x01; +} +DECL_INIT(sleep_init); + // Optimized crc16_ccitt for the avr processor uint16_t crc16_ccitt(char *buf, uint8_t len) |