From 90f0ffdc982f562f7993aabdbe9dabf25e100966 Mon Sep 17 00:00:00 2001
From: LongHairedHacker <sebastian@sebastians-site.de>
Date: Mon, 20 Aug 2018 00:30:54 +0200
Subject: [PATCH] SPI works

---
 src/main.rs | 46 +++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 39 insertions(+), 7 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 42fe3bb..da0ba45 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -42,17 +42,28 @@ fn configure_clocks(rcc: &mut rcc::RCC) {
 fn configure_peripherals(rcc: &mut hcl::platform::rcc::RCC,
                                 gpio: &mut gpio::GPIO,
                                 usart: &mut usart::USART) {
-    rcc.apb2_enable.set_gpio_a(true);
+    rcc.apb2_enable.configure(|a| a
+        .set_gpio_a(true)
+        .set_spi1(true));
     rcc.apb1_enable.configure(|a| a
         .set_usart2(true));
 
     gpio.configure(|g| g
-        .set_mode(2, gpio::PinMode::Output2MHz)
+        .set_mode(2, gpio::PinMode::Output50MHz)
         .set_output_config(2, gpio::OutputConfig::AfPushPull)
         .set_mode(3, gpio::PinMode::Output50MHz)
         .set_output_config(3, gpio::OutputConfig::AfPushPull)
+        // SCK1
         .set_mode(5, gpio::PinMode::Output50MHz)
-        .set_output_config(5, gpio::OutputConfig::PushPull));
+        .set_output_config(5, gpio::OutputConfig::AfPushPull)
+        // MOSI1
+        .set_mode(7, gpio::PinMode::Output50MHz)
+        .set_output_config(7, gpio::OutputConfig::AfPushPull)
+        // MISO1
+        .set_mode(6, gpio::PinMode::Input)
+        // NSS1
+        .set_mode(4, gpio::PinMode::Output50MHz)
+        .set_output_config(4, gpio::OutputConfig::PushPull));
 
     usart.configure(|u| u
         .set_enabled(true)
@@ -70,12 +81,33 @@ fn run(mut scs: scs::Instance, mut p: hcl::platform::Instance) {
 
     let mut printer = UsartPrinter::init(p.usart2);
 
-    for i in 0u32..0xffffffff {
-        let x = format!("> {}\r\n", i).into_bytes();
+    let mut spi = p.spi1;
+    spi.configure(|s| s
+        .set_enabled(true)
+        .set_master_mode(true)
+        .set_bidi_tx(false)
+        .set_clock_divider(128)
+        .set_data_16bit(true)
+        .set_clock_idles_high(false)
+        .set_lsb_first(false)
+        .set_clock_skip_first(true));
 
-        printer.print(x);
+    loop {
+        for i in 0u16..0xffff {
+            let x = format!("> {}\r\n", i).into_bytes();
+
+            p.gpio_a.set_bit(4);
+            spi.set_data(i.into());
+
+            while spi.busy() {
+
+            }
+            p.gpio_a.reset_bit(4);
+
+
+            printer.print(x);
+        }
     }
-
 }