M-Labs/humpback-dds
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migen: replace ethernet conflict pin

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This commit is contained in:
occheung 2020-08-24 10:57:37 +08:00
parent a62c204b78
commit 9ec5698f63
3 changed files with 54 additions and 30 deletions
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2
.cargo/config
View File

@ -1,5 +1,5 @@
[target.thumbv7em-none-eabihf]
runner = "gdb -q -x gdb_config/fpga_config.gdb"
runner = "gdb -q -x gdb_config/debug.gdb"
rustflags = [
"-C", "link-arg=-Tlink.x",
]

4
migen/humpback.py
View File

@ -33,10 +33,10 @@ _io.append(
# Resource: DDS I/O_Update
'''
io_update -> PB13 : B12
io_update -> PB15 : A11
'''
_io.append(
("io_update", 0, Pins("B12"), IOStandard("LVCMOS33"))
("io_update", 0, Pins("A11"), IOStandard("LVCMOS33"))
)
# Inherit Platform to gain the programmed clock attribute

78
src/main.rs
View File

@ -73,9 +73,7 @@ fn main() -> ! {
let sclk = gpioa.pa5.into_alternate_af5();
let mosi = gpiob.pb5.into_alternate_af5();
let miso = gpioa.pa6.into_alternate_af5();
// let mut sclk = gpioa.pa5.into_push_pull_output();
// let mut mosi = gpiob.pb5.into_push_pull_output();
// let mut miso = gpioa.pa6.into_pull_up_input();
let (mut cs0, mut cs1, mut cs2) = (
gpiob.pb12.into_push_pull_output(),
@ -83,6 +81,11 @@ fn main() -> ! {
gpioc.pc7.into_push_pull_output(),
);
/*
* I/O_Update -> PB13
*/
let mut io_update = gpiob.pb15.into_push_pull_output();
let mut spi = dp.SPI1.spi(
(sclk, miso, mosi),
spi::MODE_0,
@ -94,13 +97,15 @@ fn main() -> ! {
// debug led
let mut yellow = gpioe.pe1.into_push_pull_output();
yellow.set_high().unwrap();
/*
let mut switch = CPLD::new(spi, (cs0, cs1, cs2));
let parts = switch.split();
let mut config = ConfigRegister::new(parts.spi1);
let mut att = Attenuator::new(parts.spi2);
let mut dds0 = DDS::new(parts.spi4);
loop {
let mut counter = config.get_status(StatusMask::RF_SW).unwrap();
hprintln!("{}", counter);
@ -108,36 +113,55 @@ fn main() -> ! {
(CFGMask::RF_SW, ((counter + 1)%16) as u32)
]).unwrap();
}
*/
/*
cs0.set_low().unwrap();
cs1.set_low().unwrap();
cs2.set_low().unwrap();
cs2.set_high().unwrap();
let mut arr: [u8; 5] = [0x00, 0x00, 0x00, 0x00, 0x02];
hprintln!("Feedback of conf: {:?}", spi.transfer(&mut arr).unwrap()).unwrap();
cs2.set_low().unwrap();
io_update.set_low().unwrap();
arr[0] = 0x80;
arr[1] = 0;
arr[2] = 0;
arr[3] = 0;
arr[4] = 0;
cs1.set_high().unwrap();
hprintln!("first proper feedback: {:?}", spi.transfer(&mut arr).unwrap()).unwrap();
let mut dummy :[u8;1] = [0];
spi.transfer(&mut dummy);
// Master reset DDS_0 through CPLD, with LED at 3
cs0.set_high().unwrap();
spi.transfer(&mut [
0x08, 0x00, 0x03
]).unwrap();
cs0.set_low().unwrap();
// Perform I/O Reset through CPLD, with LED at 4
cs0.set_high().unwrap();
spi.transfer(&mut [
0x10, 0x00, 0x04
]).unwrap();
cs0.set_low().unwrap();
// Release reset, control I/O Update through EEM
cs0.set_high().unwrap();
spi.transfer(&mut [
0x00, 0x00, 0x0A
]).unwrap();
cs0.set_low().unwrap();
cs0.set_low().unwrap();
cs1.set_low().unwrap();
cs2.set_high().unwrap();
hprintln!("{:?}", spi.transfer(&mut [
0x00, 0x00, 0x00, 0x00, 0x02
]).unwrap()).unwrap();
loop {
arr[0] = 0x81;
arr[1] = 0;
arr[2] = 0;
arr[3] = 0;
arr[4] = 0;
cs1.set_high().unwrap();
hprintln!("{:?}", spi.transfer(&mut arr).unwrap()).unwrap();
cs1.set_low().unwrap();
}
*/
io_update.set_high().unwrap();
delay.delay_ms(1_u16);
io_update.set_low().unwrap();
hprintln!("{:?}", spi.transfer(&mut [
0x80, 0x00, 0x00, 0x00, 0x00
]).unwrap()).unwrap();
loop {}
}