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Firmware: Add AD9117 DAC Startup Seq for shuttler

This commit is contained in:
linuswck 2023-09-04 16:50:00 +08:00 committed by Sébastien Bourdeauducq
parent 7c8073c1ce
commit ccb140a929
4 changed files with 86 additions and 6 deletions

View File

@ -0,0 +1,70 @@
use spi;
use board_misoc::{csr, clock};
const DATA_CTRL_REG : u8 = 0x02;
const IRCML_REG : u8 = 0x05;
const QRCML_REG : u8 = 0x08;
const CLKMODE_REG : u8 = 0x14;
const VERSION_REG : u8 = 0x1F;
fn hard_reset() {
unsafe {
// Min Pulse Width: 50ns
csr::dac_rst::out_write(1);
clock::spin_us(1);
csr::dac_rst::out_write(0);
}
}
fn spi_setup(dac_sel: u8, half_duplex: bool, end: bool) -> Result<(), &'static str> {
// Clear the cs_polarity and cs config
spi::set_config(0, 0, 8, 64, 0b1111)?;
spi::set_config(0, 1 << 3, 8, 64, (7 - dac_sel) << 1)?;
spi::set_config(0, (half_duplex as u8) << 7 | (end as u8) << 1, 8, 64, 0b0001)?;
Ok(())
}
fn write(dac_sel: u8, reg: u8, val: u8) -> Result<(), &'static str> {
spi_setup(dac_sel, false, false)?;
spi::write(0, (reg as u32) << 24)?;
spi_setup(dac_sel, false, true)?;
spi::write(0, (val as u32) << 24)?;
Ok(())
}
fn read(dac_sel: u8, reg: u8) -> Result<u8, &'static str> {
spi_setup(dac_sel, false, false)?;
spi::write(0, ((reg | 1 << 7) as u32) << 24)?;
spi_setup(dac_sel, true, true)?;
spi::write(0, 0)?;
Ok(spi::read(0)? as u8)
}
pub fn init() -> Result<(), &'static str> {
hard_reset();
for channel in 0..8 {
let reg = read(channel, VERSION_REG)?;
if reg != 0x0A {
debug!("DAC AD9117 Channel {} has incorrect hardware version. VERSION reg: {:02x}", channel, reg);
return Err("DAC AD9117 hardware version is not equal to 0x0A");
}
let reg = read(channel, CLKMODE_REG)?;
if reg >> 4 & 1 != 0 {
debug!("DAC AD9117 Channel {} retiming fails. CLKMODE reg: {:02x}", channel, reg);
return Err("DAC AD9117 retiming failure");
}
// Set the DACs input data format to be twos complement
// Set IFIRST and IRISING to True
write(channel, DATA_CTRL_REG, 1 << 7 | 1 << 5 | 1 << 4)?;
// Enable internal common mode resistors of both channels
write(channel, IRCML_REG, 1 << 7)?;
write(channel, QRCML_REG, 1 << 7)?;
}
Ok(())
}

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@ -34,3 +34,6 @@ pub mod drtio_routing;
#[cfg(all(has_drtio_eem, feature = "alloc"))]
pub mod drtio_eem;
#[cfg(soc_platform = "efc")]
pub mod ad9117;

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@ -2,9 +2,11 @@
mod imp {
use board_misoc::csr;
pub fn set_config(busno: u8, flags: u8, length: u8, div: u8, cs: u8) -> Result<(), ()> {
const INVALID_BUS: &'static str = "Invalid SPI bus";
pub fn set_config(busno: u8, flags: u8, length: u8, div: u8, cs: u8) -> Result<(), &'static str> {
if busno != 0 {
return Err(())
return Err(INVALID_BUS)
}
unsafe {
while csr::converter_spi::writable_read() == 0 {}
@ -31,9 +33,9 @@ mod imp {
Ok(())
}
pub fn write(busno: u8, data: u32) -> Result<(), ()> {
pub fn write(busno: u8, data: u32) -> Result<(), &'static str> {
if busno != 0 {
return Err(())
return Err(INVALID_BUS)
}
unsafe {
while csr::converter_spi::writable_read() == 0 {}
@ -42,9 +44,9 @@ mod imp {
Ok(())
}
pub fn read(busno: u8) -> Result<u32, ()> {
pub fn read(busno: u8) -> Result<u32, &'static str> {
if busno != 0 {
return Err(())
return Err(INVALID_BUS)
}
Ok(unsafe {
while csr::converter_spi::writable_read() == 0 {}

View File

@ -15,6 +15,8 @@ use board_misoc::{csr, ident, clock, uart_logger, i2c, pmp};
#[cfg(has_si5324)]
use board_artiq::si5324;
use board_artiq::{spi, drtioaux};
#[cfg(soc_platform = "efc")]
use board_artiq::ad9117;
use board_artiq::drtio_routing;
use proto_artiq::drtioaux_proto::ANALYZER_MAX_SIZE;
#[cfg(has_drtio_eem)]
@ -578,6 +580,9 @@ pub extern fn main() -> i32 {
let mut hardware_tick_ts = 0;
#[cfg(soc_platform = "efc")]
ad9117::init().expect("AD9117 initialization failed");
loop {
while !drtiosat_link_rx_up() {
drtiosat_process_errors();