WIZnet
Gainspan module evaluation with WIZwiki-W7500 using SerialPassthrough.
Dependencies: mbed
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SerialPassthrough_GainspanModule_W7500
by 
Steve Kim
This is a serial-passthrough example using WIZwiki-W7500 and gainspan-WiFi-module.
With this example, I can issue at-command-sets to the WiFi module with WIZwiki-W7500's serial. UART data flow is shown as below.
[PC Serial Terminal] <=> [WIZwiki-W7500's UIART1/DAP] <=> [WIZwiki-W7500's UIART0] <=> [Gainspan WiFi module]
Connected pins between WIZwiki-W7500 and WiFi-module are only 4 pins.
(3.3V, GND, UART-Tx, UART-Rx)
And, here is a picture.
And here is a captures of test logs. Red box is what I issued.
[PS] ASYNC_DEBUG is for internal-debugging like ISR. You can ignore it.
Diff: main.cpp
- Revision:
- 1:95a26b8d2887
- Parent:
- 0:98000a7ccec5
--- a/main.cpp Fri Aug 21 05:53:34 2015 +0000
+++ b/main.cpp Fri Aug 21 06:57:06 2015 +0000
@@ -7,6 +7,9 @@
RawSerial pc(USBTX, USBRX); // tx, rx
RawSerial dev(D1, D0); // tx, rx for WIZwiki-W75000
+#define ASYNC_DEBUG 0
+
+#if ASYNC_DEBUG
////////////////////////////////////////////////////////////////////////////////////////////////
// mbed Async Debug
Timeout timer_buffer_debug;
@@ -43,7 +46,7 @@
void (*dbg_f)(const char *format, ...);
extern void (*dbg_f)(const char *format, ...);
-////////////////////////////////////////////////////////////////////////////////////////////////
+#endif
void dev_recv()
{
@@ -75,9 +78,11 @@
pc.printf("Serial Passthrough Started. \r\n");
+#if ASYNC_DEBUG
dbg_f = &mbed_async_debug;
timer_buffer_debug.attach(&print_debugbuffer, 0.1);
-
+#endif
+
pc.attach(&pc_recv, Serial::RxIrq);
dev.attach(&dev_recv, Serial::RxIrq);