Lancaster University
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mbed-src
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Diff: targets/hal/TARGET_NXP/TARGET_LPC11U6X/pwmout_api.c
- Revision:
- 516:b3fb5c6901a6
- Parent:
- 285:31249416b6f9
--- a/targets/hal/TARGET_NXP/TARGET_LPC11U6X/pwmout_api.c Fri Apr 17 08:45:07 2015 +0100
+++ b/targets/hal/TARGET_NXP/TARGET_LPC11U6X/pwmout_api.c Mon Apr 20 10:45:07 2015 +0100
@@ -77,9 +77,8 @@
pinmap_pinout(pin, PinMap_PWM);
LPC_SCT0_Type* pwm = obj->pwm;
- // Two 16-bit counters, autolimit
- pwm->CONFIG &= ~(0x1);
- pwm->CONFIG |= (1 << 17);
+ // Unified 32-bit counter, autolimit
+ pwm->CONFIG |= ((0x3 << 17) | 0x01);
// halt and clear the counter
pwm->CTRL |= (1 << 2) | (1 << 3);
@@ -170,8 +169,8 @@
uint32_t t_off = obj->pwm->MATCHREL0;
uint32_t t_on = obj->pwm->MATCHREL1;
float v = (float)t_on/(float)t_off;
- obj->pwm->MATCHREL0 = (uint64_t)us;
- obj->pwm->MATCHREL1 = (uint64_t)((float)us * (float)v);
+ obj->pwm->MATCHREL0 = (uint32_t)us;
+ obj->pwm->MATCHREL1 = (uint32_t)((float)us * (float)v);
}
void pwmout_pulsewidth(pwmout_t* obj, float seconds) {
@@ -183,7 +182,7 @@
}
void pwmout_pulsewidth_us(pwmout_t* obj, int us) {
- obj->pwm->MATCHREL1 = (uint64_t)us;
+ obj->pwm->MATCHREL1 = (uint32_t)us;
}
#endif