fix logic/counting bug in readTrans in spis

elcritch · Nov 4, 2020 · 0747fd1 · 0747fd1
1 parent c6ef260
commit 0747fd1
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/src/nesper/spis.nim b/src/nesper/spis.nim
@@ -260,11 +260,10 @@ proc readTrans*(dev: SpiDev;
                 ): SpiTrans =
   assert not (USE_TXDATA in flags)
   if (dev.devcfg.flags.uint32 and HALFDUPLEX.uint32) > 0:
-    logi(TAG, "HALFDUPLEX", )
     fullTrans(dev, cmd=cmd, cmdaddr=cmdaddr, rxlength=rxlength, txlength=bits(0), txdata=[], flags=flags)
   else:
     var n = rxlength.int div 8
-    if n*8 <= rxlength.int: n += 1
+    if rxlength.int > n*8 : n += 1
     var data = newSeq[byte](n)
     fullTrans(dev, cmd=cmd, cmdaddr=cmdaddr, rxlength=rxlength, txlength=rxlength, txdata=data, flags=flags)