Initial comm to W5500 working

.gitmodules

@@ -4,3 +4,12 @@
 [submodule "pico-sdk"]
 	path = pico-sdk
 	url = https://github.com/raspberrypi/pico-sdk.git
+[submodule "pico-extras"]
+	path = pico-extras
+	url = https://github.com/raspberrypi/pico-extras.git
+[submodule "ioLibrary_Driver"]
+	path = ioLibrary_Driver
+	url = https://github.com/Wiznet/ioLibrary_Driver.git
+[submodule "RP2040-HAT-C"]
+	path = RP2040-HAT-C
+	url = https://github.com/Wiznet/RP2040-HAT-C.git

local/yambs.yaml

@@ -2,6 +2,8 @@
 includes:
   - ../config/python/yambs/cflag_groups.yaml
   - ../config/python/yambs/pico-sdk.yaml
+  - ../config/python/yambs/ioLibrary_Driver.yaml
+  - ../config/python/yambs/RP2040-HAT-C.yaml
 
 default_target: pico
 
@@ -16,7 +18,13 @@ ldflag_groups:
 variants:
   pico:
     prefix: "arm-picolibc-eabi-"
-    cflag_groups: [picolib, m0plus, armv6m, pico-sdk]
+    cflag_groups:
+      - picolib
+      - m0plus
+      - armv6m
+      - pico-sdk
+      - ioLibrary_Driver
+      - RP2040-HAT-C
     ldflag_groups: [semihost]
     targets: [uf2s]
 

src/apps/test_file.cc

@@ -1,9 +1,12 @@
 /* internal */
 #include "cli.h"
 #include "uart_stdio.h"
+#include "wizchip.h"
 
 void core1_app(void)
 {
+    pico_wizchip_init();
+
     while (true)
     {
         // some kind of state machine thing?
@@ -14,8 +17,28 @@ void core1_app(void)
     }
 }
 
+/* Clock */
+#define PLL_SYS_KHZ (133 * 1000)
+
+static void set_clock_khz(void)
+{
+    // set a system clock frequency in khz
+    set_sys_clock_khz(PLL_SYS_KHZ, true);
+
+    // configure the specified clock
+    clock_configure(
+        clk_peri,
+        0,                                                // No glitchless mux
+        CLOCKS_CLK_PERI_CTRL_AUXSRC_VALUE_CLKSRC_PLL_SYS, // System PLL on AUX
+                                                          // mux
+        PLL_SYS_KHZ * 1000,                               // Input frequency
+        PLL_SYS_KHZ * 1000 // Output (must be same as no divider)
+    );
+}
+
 void init(void)
 {
+    set_clock_khz();
     stdio_usb_init();
 
     gpio_init(led_pin);

src/cli.cc

@@ -46,9 +46,15 @@ void do_clocks(CommandLine &cli)
            frequency_count_khz(CLOCKS_FC0_SRC_VALUE_CLK_RTC));
 }
 
+void do_net(CommandLine &cli)
+{
+    (void)cli;
+}
+
 void register_commands(CommandLineApp &app)
 {
     app.add_handler("led", do_led, "toggle the LED on or off");
     app.add_handler("exit", do_exit, "exit the application");
     app.add_handler("clocks", do_clocks);
+    app.add_handler("net", do_net);
 }

src/pico_headers.h

@@ -15,6 +15,7 @@
 #include "pico/critical_section.h"
 #include "pico/multicore.h"
 #include "pico/stdio_usb.h"
+#include "pico/stdlib.h"
 #include "pico/time.h"
 
 #pragma GCC diagnostic pop

src/wizchip.cc

@@ -0,0 +1,45 @@
+#include "wizchip.h"
+
+extern "C"
+{
+#include "wizchip_conf.h"
+
+#include "w5x00_spi.h"
+
+#include "dhcp.h"
+#include "dns.h"
+#include "timer.h"
+}
+
+/* Timer */
+static volatile uint16_t g_msec_cnt = 0;
+
+/* Timer */
+static void repeating_timer_callback(void)
+{
+    auto val = g_msec_cnt;
+    val++;
+
+    if (val >= 1000 - 1)
+    {
+        val = 0;
+
+        DHCP_time_handler();
+        DNS_time_handler();
+    }
+
+    g_msec_cnt = val;
+}
+
+extern "C" void pico_wizchip_init(void)
+{
+    wizchip_spi_initialize();
+    wizchip_cris_initialize();
+
+    wizchip_reset();
+
+    wizchip_initialize();
+    wizchip_check();
+
+    wizchip_1ms_timer_initialize(repeating_timer_callback);
+}

src/wizchip.h

@@ -0,0 +1,3 @@
+#pragma once
+
+extern "C" void pico_wizchip_init(void);