atsamd_hal/peripherals/calibration/
d5x.rs

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1//! NVM Software Calibration Area Mapping
2// See 9.5 NVM Software Calibration Area Mapping, page 57
3
4use core::ptr;
5
6// "The NVM Software Calibration Area can be read at address 0x00800080."
7const ADDR: u32 = 0x00800080;
8
9fn cal(addr_offset: u32, bit_shift: u32, bit_mask: u32) -> u32 {
10    unsafe {
11        let addr: *const u32 = (ADDR + addr_offset) as *const _;
12        let value = ptr::read(addr);
13
14        (value >> bit_shift) & bit_mask
15    }
16}
17
18/// USB TRANSN calibration value. Should be written to USB PADCAL register.
19pub fn usb_transn_cal() -> u8 {
20    cal(4, 0, 0b11111) as u8
21}
22
23/// USB TRANSP calibration value. Should be written to USB PADCAL register.
24pub fn usb_transp_cal() -> u8 {
25    cal(4, 5, 0b11111) as u8
26}
27
28/// USB TRIM calibration value. Should be written to USB PADCAL register.
29pub fn usb_trim_cal() -> u8 {
30    cal(4, 10, 0b111) as u8
31}
32
33/// ADC0 BIASCOMP calibration value. Should be written to ADC0 CALIB register.
34pub fn adc0_biascomp_scale_cal() -> u8 {
35    cal(0, 2, 0b111) as u8
36}
37
38/// ADC0 BIASREFBUF calibration value. Should be written to ADC0 CALIB register.
39pub fn adc0_biasref_scale_cal() -> u8 {
40    cal(0, 5, 0b111) as u8
41}
42
43/// ADC0 BIASR2R calibration value. Should be written to ADC0 CALIB register.
44pub fn adc0_biasr2r_scale_cal() -> u8 {
45    cal(1, 0, 0b111) as u8
46}
47
48/// ADC1 BIASCOMP calibration value. Should be written to ADC1 CALIB register.
49pub fn adc1_biascomp_scale_cal() -> u8 {
50    cal(2, 2, 0b111) as u8
51}
52
53/// ADC1 BIASREFBUF calibration value. Should be written to ADC1 CALIB register.
54pub fn adc1_biasref_scale_cal() -> u8 {
55    cal(2, 5, 0b111) as u8
56}
57
58/// ADC1 BIASR2R calibration value. Should be written to ADC1 CALIB register.
59pub fn adc1_biasr2r_scale_cal() -> u8 {
60    cal(3, 0, 0b111) as u8
61}
atsamd_hal/peripherals/calibration/d5x.rs

atsamd_hal/peripherals/calibration/
d5x.rs
