From 740e6863c3848c324a266ccc357d158444e68a4b Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Tue, 19 Jun 2018 23:48:48 +0800
Subject: [PATCH] hmc7043: add delay after releasing hardware reset

---
 artiq/firmware/libboard_artiq/hmc830_7043.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/artiq/firmware/libboard_artiq/hmc830_7043.rs b/artiq/firmware/libboard_artiq/hmc830_7043.rs
index 10651d0bf..0e7f5a6ed 100644
--- a/artiq/firmware/libboard_artiq/hmc830_7043.rs
+++ b/artiq/firmware/libboard_artiq/hmc830_7043.rs
@@ -155,7 +155,7 @@ mod hmc830 {
 }
 
 pub mod hmc7043 {
-    use board_misoc::csr;
+    use board_misoc::{csr, clock};
 
     // All frequencies assume 1.2GHz HMC830 output
     const DAC_CLK_DIV: u32 = 2;               // 600MHz
@@ -241,11 +241,12 @@ pub mod hmc7043 {
     }
 
     pub fn enable() {
-        info!("enabling hmc7043");
+        info!("enabling HMC7043");
 
         unsafe {
             csr::hmc7043_reset::out_write(0);
         }
+        clock::spin_us(10_000);
 
         spi_setup();
         write(0x0, 0x1);   // Software reset