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pwm: add period limits, warn over syslog

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Added minimum, maximum and default period settings to board definitions
PWM will now have a default period as defined in the board defintion.
When using pwm_write() writing 1.0f or above will default to 100%.

Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
This commit is contained in:
Thomas Ingleby
2014-10-30 12:03:24 +00:00
parent 29b0425c9b
commit 3b01af1da1
6 changed files with 28 additions and 0 deletions
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7
src/intel_edison_fab_c.c
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@@ -493,6 +493,10 @@ mraa_intel_edsion_miniboard(mraa_board_t* b)
b->phy_pin_count = 56;
b->gpio_count = 56; // A bit of a hack I suppose
b->aio_count = 0;
b->pwm_default_period = 5000;
b->pwm_max_period = 218453;
b->pwm_min_period = 1;
b->pins = (mraa_pininfo_t*) malloc(sizeof(mraa_pininfo_t)*56);
@@ -890,6 +894,9 @@ mraa_intel_edison_fab_c()
b->adc_raw = 12;
b->adc_supported = 10;
b->pwm_default_period = 5000;
b->pwm_max_period = 218453;
b->pwm_min_period = 1;
strncpy(b->pins[0].name, "IO0", 8);
b->pins[0].capabilites = (mraa_pincapabilities_t) {1,1,0,0,0,0,0,1};