(no commit message)

diff --git a/shakti/m_class/PWM.mdwn b/shakti/m_class/PWM.mdwn
index 204f5bb9992be6d6a5a169e7e98f89e162da502f..9719bf08275dcc74501362991a30afecc0aaac03 100644 (file)
--- a/shakti/m_class/PWM.mdwn
+++ b/shakti/m_class/PWM.mdwn
@@ -1,3 +1,8 @@
 # PWM
 
-TODO
+* <http://bugs.libre-riscv.org/show_bug.cgi?id=13>
+* <https://github.com/sifive/sifive-blocks/tree/master/src/main/scala/devices/>
+  includes GPIO, SPI, UART, JTAG, I2C, PinCtrl, UART and PWM.  Also included
+  is a Watchdog Timer and others.
+* <https://opencores.org/project,ss_pcm>
+