PaulStoffregen
6 years ago
1 changed files with 2 additions and 1 deletions
+ 2
- 1
teensy3/analog.c
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| // use whatever voltage is on the AREF pin | // use whatever voltage is on the AREF pin | ||||
| DAC0_C0 = DAC_C0_DACEN | DAC_C0_DACSWTRG; // 3.3V VDDA | DAC0_C0 = DAC_C0_DACEN | DAC_C0_DACSWTRG; // 3.3V VDDA | ||||
| } | } | ||||
| __asm__ ("usat %[value], #12, %[value]\n\t" : [value] "+r" (val)); // 0 <= val <= 4095 | |||||
| if (val < 0) val = 0; | |||||
| else if (val > 4095) val = 4095; | |||||
| *(volatile aliased_int16_t *)&(DAC0_DAT0L) = val; | *(volatile aliased_int16_t *)&(DAC0_DAT0L) = val; | ||||
| #endif | #endif |
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