From 3ea83706512a5051a185ac8ec4ba0094290a217d Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Thu, 28 Oct 2010 18:39:40 +0000
Subject: LPC13xx SPI driver.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2300 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 demos/ARMCM3-LPC1343-GCC/halconf.h |  2 +-
 demos/ARMCM3-LPC1343-GCC/main.c    | 37 +++++++++++++++++++++++++++++++++++--
 2 files changed, 36 insertions(+), 3 deletions(-)

(limited to 'demos/ARMCM3-LPC1343-GCC')

diff --git a/demos/ARMCM3-LPC1343-GCC/halconf.h b/demos/ARMCM3-LPC1343-GCC/halconf.h
index 87d0f835d..2c3afda84 100644
--- a/demos/ARMCM3-LPC1343-GCC/halconf.h
+++ b/demos/ARMCM3-LPC1343-GCC/halconf.h
@@ -130,7 +130,7 @@
  * @brief Enables the SPI subsystem.
  */
 #if !defined(CH_HAL_USE_SPI) || defined(__DOXYGEN__)
-#define CH_HAL_USE_SPI              FALSE
+#define CH_HAL_USE_SPI              TRUE
 #endif
 
 /*
diff --git a/demos/ARMCM3-LPC1343-GCC/main.c b/demos/ARMCM3-LPC1343-GCC/main.c
index 45496acfc..092cecdbb 100644
--- a/demos/ARMCM3-LPC1343-GCC/main.c
+++ b/demos/ARMCM3-LPC1343-GCC/main.c
@@ -21,18 +21,50 @@
 #include "hal.h"
 #include "test.h"
 
+/*
+ * Conversion table from hex digit to 7 segments encoding, bit 5 controls the
+ * dot.
+ * 8 = LU, 4 = RL, 2 = D, 1 = RU, 8 = U, 4 = M, 2 = LL, 1 = L.
+ */
+static uint8_t digits[32] = {
+  0x24, 0xAF, 0xE0, 0xA2, 0x2B, 0x32, 0x30, 0xA7,
+  0x20, 0x22, 0x21, 0x38, 0x74, 0xA8, 0x70, 0x71,
+  0x04, 0x8F, 0xC0, 0x82, 0x0B, 0x12, 0x10, 0x87,
+  0x00, 0x02, 0x01, 0x18, 0x54, 0x88, 0x50, 0x51
+};
+
+static void endsend(SPIDriver *spip) {
+
+  spiUnselect(spip);
+}
+
+/* Maximum speed SPI configuration (1MHz, CPHA=0, CPOL=0).*/
+static SPIConfig spicfg = {
+  endsend,
+  GPIO1,
+  GPIO1_SPI0SEL,
+  CR0_DSS8BIT | CR0_FRFSPI | CR0_CLOCKRATE(0),
+  72
+};
+
 /*
  * Red LED blinker thread, times are in milliseconds.
  */
 static WORKING_AREA(waThread1, 128);
 static msg_t Thread1(void *arg) {
+  uint8_t i = 0;
 
   (void)arg;
   while (TRUE) {
+    spiSelect(&SPID1);
+    spiStartSend(&SPID1, 1, &digits[i]);
     palClearPad(GPIO0, GPIO0_LED2);
     chThdSleepMilliseconds(500);
+    spiSelect(&SPID1);
+    spiStartSend(&SPID1, 1, &digits[i | 0x10]);
     palSetPad(GPIO0, GPIO0_LED2);
     chThdSleepMilliseconds(500);
+    i = (i + 1) & 15;
   }
   return 0;
 }
@@ -78,9 +110,10 @@ int main(int argc, char **argv) {
   (void)argv;
 
   /*
-   * Activates the serial driver 1 using the driver default configuration.
+   * Activates the SD1 and SPI1 drivers.
    */
-  sdStart(&SD1, NULL);
+  sdStart(&SD1, NULL);                  /* Default: 38400,8,N,1.            */
+  spiStart(&SPID1, &spicfg);
 
   /*
    * Creates the blinker threads.
-- 
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