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dma: fix timestamp fetch

This commit is contained in:
occheung 2021-09-03 16:05:58 +08:00
parent 051a14abf2
commit 09ffd9de1e
1 changed files with 2 additions and 2 deletions
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4
artiq/firmware/ksupport/lib.rs
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@ -329,7 +329,7 @@ unsafe fn dma_record_output_prepare(timestamp: i64, target: i32,
#[unwind(aborts)] #[unwind(aborts)]
extern fn dma_record_output(target: i32, word: i32) { extern fn dma_record_output(target: i32, word: i32) {
unsafe { unsafe {
let timestamp = *(csr::rtio::NOW_HI_ADDR as *const i64); let timestamp = ((csr::rtio::now_hi_read() as i64) << 32) | (csr::rtio::now_lo_read() as i64);
let data = dma_record_output_prepare(timestamp, target, 1); let data = dma_record_output_prepare(timestamp, target, 1);
data.copy_from_slice(&[ data.copy_from_slice(&[
(word >> 0) as u8, (word >> 0) as u8,
@ -345,7 +345,7 @@ extern fn dma_record_output_wide(target: i32, words: CSlice<i32>) {
assert!(words.len() <= 16); // enforce the hardware limit assert!(words.len() <= 16); // enforce the hardware limit
unsafe { unsafe {
let timestamp = *(csr::rtio::NOW_HI_ADDR as *const i64); let timestamp = ((csr::rtio::now_hi_read() as i64) << 32) | (csr::rtio::now_lo_read() as i64);
let mut data = dma_record_output_prepare(timestamp, target, words.len()); let mut data = dma_record_output_prepare(timestamp, target, words.len());
for word in words.as_ref().iter() { for word in words.as_ref().iter() {
data[..4].copy_from_slice(&[ data[..4].copy_from_slice(&[