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start ADC after initialization, to avoid FIFO overflows

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This commit is contained in:
Sebastien Bourdeauducq 2017-08-06 19:06:47 +08:00
parent 98b17fc574
commit 68eb1cdbba
2 changed files with 11 additions and 4 deletions
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10
firmware/src/board.rs
View File

@ -281,8 +281,13 @@ pub fn init() {
.pwm2en().bit(true)
.pwm4en().bit(true)
});
});
}
pub fn start_adc() {
cortex_m::interrupt::free(|cs| {
let sysctl = tm4c129x::SYSCTL.borrow(cs);
// Set up ADC
let gpio_d = tm4c129x::GPIO_PORTD_AHB.borrow(cs);
let gpio_e = tm4c129x::GPIO_PORTE_AHB.borrow(cs);
gpio_d.afsel.write(|w| w.afsel().bits(FBV_ADC|AV_ADC));
@ -318,6 +323,9 @@ pub fn init() {
adc0.sac.write(|w| w.avg()._64x());
adc0.ctl.write(|w| w.vref().bit(true));
adc0.actss.write(|w| w.asen0().bit(true));
let nvic = tm4c129x::NVIC.borrow(cs);
nvic.enable(tm4c129x::Interrupt::ADC0SS0);
});
}

5
firmware/src/main.rs
View File

@ -98,9 +98,6 @@ fn main() {
board::init();
cortex_m::interrupt::free(|cs| {
let nvic = tm4c129x::NVIC.borrow(cs);
nvic.enable(tm4c129x::Interrupt::ADC0SS0);
let mut loop_anode = LOOP_ANODE.borrow(cs).borrow_mut();
let mut loop_cathode = LOOP_CATHODE.borrow(cs).borrow_mut();
@ -182,6 +179,8 @@ fn main() {
(http::Request::new(), tcp_handle7),
];
board::start_adc();
let mut next_blink = 0;
let mut next_info = 0;
let mut led_state = true;