ident CSR demo

This commit is contained in:
Sebastien Bourdeauducq 2020-04-11 21:32:44 +08:00
parent 7607c48956
commit 506e537f77
2 changed files with 21 additions and 4 deletions

View File

@ -5,15 +5,31 @@ extern crate alloc;
use libboard_zynq::println; use libboard_zynq::println;
use libsupport_zynq::ram; use libsupport_zynq::ram;
use core::{cmp, str};
mod pl;
fn identifier_read(buf: &mut [u8]) -> &str {
unsafe {
pl::csr::identifier::address_write(0);
let len = pl::csr::identifier::data_read();
let len = cmp::min(len, buf.len() as u8);
for i in 0..len {
pl::csr::identifier::address_write(1 + i);
buf[i as usize] = pl::csr::identifier::data_read();
}
str::from_utf8_unchecked(&buf[..len as usize])
}
}
#[no_mangle] #[no_mangle]
pub fn main_core0() { pub fn main_core0() {
println!("hello world 000"); println!("[CORE0] hello world {}", identifier_read(&mut [0; 64]));
loop {} loop {}
} }
#[no_mangle] #[no_mangle]
pub fn main_core1() { pub fn main_core1() {
println!("hello world 111"); println!("[CORE1] hello world {}", identifier_read(&mut [0; 64]));
loop {} loop {}
} }

View File

@ -1,6 +1,7 @@
#!/usr/bin/env python #!/usr/bin/env python
import argparse import argparse
import os
from migen import * from migen import *
@ -18,7 +19,7 @@ class ZC706(SoCCore):
platform.toolchain.bitstream_commands.extend([ platform.toolchain.bitstream_commands.extend([
"set_property BITSTREAM.GENERAL.COMPRESS True [current_design]", "set_property BITSTREAM.GENERAL.COMPRESS True [current_design]",
]) ])
SoCCore.__init__(self, platform=platform) SoCCore.__init__(self, platform=platform, ident="RTIO_ZC706")
platform.add_platform_command("create_clock -name clk_fpga_0 -period 8 [get_pins \"PS7/FCLKCLK[0]\"]") platform.add_platform_command("create_clock -name clk_fpga_0 -period 8 [get_pins \"PS7/FCLKCLK[0]\"]")
platform.add_platform_command("set_input_jitter clk_fpga_0 0.24") platform.add_platform_command("set_input_jitter clk_fpga_0 0.24")
@ -67,7 +68,7 @@ def main():
if action == "gateware": if action == "gateware":
soc.build() soc.build()
elif action == "rustif": elif action == "rustif":
write_csr_file(soc, "pl.rs") write_csr_file(soc, os.path.join("runtime", "src", "pl.rs"))
else: else:
raise ValueError("invalid action", action) raise ValueError("invalid action", action)