diff --git a/gpio/max32660/fast_ring.JPG b/gpio/max32660/fast_ring.JPG
new file mode 100644
index 0000000000000000000000000000000000000000..9b2ffde3ea85adc281ecf1763f9e53ea4a47589b
Binary files /dev/null and b/gpio/max32660/fast_ring.JPG differ
diff --git a/gpio/max32660/index.html b/gpio/max32660/index.html
new file mode 100644
index 0000000000000000000000000000000000000000..a225e61245be7b6da6a2d1e648f112d9ab0ef85f
--- /dev/null
+++ b/gpio/max32660/index.html
@@ -0,0 +1,75 @@
+<html>
+<head>
+<style>
+pre code {
+ background-color: #eee;
+ border: 1px solid #999;
+ display: block;
+ padding: 20px;
+}
+</style>
+
+
+</head>
+<body>
+
+<h1>MAX32660</h1>
+
+<figure>
+<img src='slow_ring.jpg' height=50%>
+<figcaption>380kHz ring oscillator with the default drivers</figcaption>
+</figure>
+
+<pre>
+<code>
+ while (1) {
+ if (GPIO_InGet(&gpio_in)) {
+ GPIO_OutClr(&gpio_out);
+ } else {
+ GPIO_OutSet(&gpio_out);
+ }
+}
+</code>
+</pre>
+
+<figure>
+<img src='fast_ring.jpg' height=50%>
+<figcaption>3.21MHz ring oscillator with port manipulation</figcaption>
+</figure>
+
+
+<pre>
+<code>
+ /***** Includes *****/
+ #include <stdio.h>
+ #include <stdint.h>
+ #include "gpio.h"
+ #include "max32660.h"
+
+ /***** Definitions *****/
+ #define GPIO_PORT_IN PORT_0
+ #define GPIO_PIN_IN PIN_12
+
+ #define GPIO_PORT_OUT PORT_0
+ #define GPIO_PIN_OUT PIN_10
+
+ int main(void)
+ {
+ while(1) {
+
+ if (MXC_GPIO0->in & GPIO_PIN_IN) {
+ MXC_GPIO0->out_clr = GPIO_PIN_OUT;
+ } else {
+ MXC_GPIO0->out_set = GPIO_PIN_OUT;
+ }
+
+ }
+ }
+</code>
+</pre>
+
+<p><a href='../../index.html'>Back</a></p>
+
+</body>
+
+</html>
diff --git a/gpio/max32660/slow_ring.jpg b/gpio/max32660/slow_ring.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..de866ed196ec860fff611a026e61b7ebad95a5a1
Binary files /dev/null and b/gpio/max32660/slow_ring.jpg differ
diff --git a/index.html b/index.html
index 7d48eaadb8bbc9ba1d5a971827832c0fdd71f327..34656d5cf724fb44d7dd164454cdd9d491c76a72 100644
--- a/index.html
+++ b/index.html
@@ -144,4 +144,4 @@ make_graph("#wildwest","wildwest",["dev board price ($)", "ring frequency (MHz)"
</body>
-</html>
\ No newline at end of file
+</html>
diff --git a/ring.json b/ring.json
index aceb5515882346e732b79279020fdf305ca328c3..7bce11b872632a14021cc78ad3a743369388041a 100644
--- a/ring.json
+++ b/ring.json
@@ -274,7 +274,17 @@
"ic_price":3.00,
"ic_sales_link":"",
"ring_period":0.218
- }
+ },
+ {
+ "name":"MAX32660",
+ "serial_number":"",
+ "subdirectory_path":"gpio/max32660",
+ "dev_board_price":15.96,
+ "dev_board_sales_link":"https://www.digikey.com/product-detail/en/maxim-integrated/MAX32660-EVSYS/MAX32660-EVSYS-ND/9666375",
+ "ic_price":4.48,
+ "ic_sales_link":"https://www.digikey.com/product-detail/en/maxim-integrated/MAX32660GWE-T/MAX32660GWE-TCT-ND/9655833",
+ "ring_period":0.3115
+ }
],
"wildwest":[
{
@@ -298,4 +308,4 @@
"ring_period":0.169
}
]
-}
\ No newline at end of file
+}