From a7ae6d419751632abd442325147368fcf4c1875d Mon Sep 17 00:00:00 2001
From: erikkaashoek <erik@kaashoek.com>
Date: Wed, 15 Apr 2020 16:12:58 +0200
Subject: [PATCH] Serial experiements

---
 halconf.h |  2 +-
 main.c    | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 mcuconf.h |  2 +-
 sa_core.c |  2 +-
 4 files changed, 70 insertions(+), 4 deletions(-)

diff --git a/halconf.h b/halconf.h
index 1450b9f..af6c283 100644
--- a/halconf.h
+++ b/halconf.h
@@ -132,7 +132,7 @@
  * @brief   Enables the SERIAL subsystem.
  */
 #if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__)
-#define HAL_USE_SERIAL              FALSE
+#define HAL_USE_SERIAL              TRUE
 #endif
 
 /**
diff --git a/main.c b/main.c
index bba6558..84a5b5f 100644
--- a/main.c
+++ b/main.c
@@ -16,9 +16,14 @@
  * the Free Software Foundation, Inc., 51 Franklin Street,
  * Boston, MA 02110-1301, USA.
  */
+//#define HAL_USE_SERIAL 1
+//#define STM32_SERIAL_USE_USART1  1
 
 #include "ch.h"
 #include "hal.h"
+
+//#include "hal_serial.h"
+
 #include "usbcfg.h"
 #ifdef __VNA__
 #include "si5351.h"
@@ -2591,6 +2596,39 @@ static DACConfig dac1cfg1 = {
 };
 #endif
 
+#if 0
+/*
+ * UART driver configuration structure.
+ */
+static UARTConfig uart_cfg_1 = {
+    NULL,   //txend1,
+    NULL,   //txend2,
+    NULL,   //rxend,
+    NULL,   //rxchar,
+    NULL,   //rxerr,
+    800000,
+    0,
+    0,      //USART_CR2_LINEN,
+    0
+};
+#endif
+
+#if 1
+static const SerialConfig default_config =
+{
+  9600,
+  0,
+  USART_CR2_STOP2_BITS,
+  0
+};
+#endif
+
+myWrite(char *buf)
+{
+  int len = strlen(buf);
+  while(len-- > 0)
+    sdPut(&SD1,*buf++);
+}
 
 // Main thread stack size defined in makefile USE_PROCESS_STACKSIZE = 0x200
 // Profile stack usage (enable threads command by def ENABLE_THREADS_COMMAND) show:
@@ -2625,7 +2663,35 @@ int main(void)
   usbStart(serusbcfg.usbp, &usbcfg);
   usbConnectBus(serusbcfg.usbp);
 
-/*
+#if 0
+ /*
+  * UART initialize
+  */
+  uartStart(&UARTD1, &uart_cfg_1);
+
+  uartStartSend(&UARTD1, 1, "H");
+  uartStartReceive(&UARTD1, 1, buf);
+#endif
+
+#if 1
+  palSetPadMode(GPIOA, 9, PAL_MODE_ALTERNATE(1));  // USART1 TX.
+  palSetPadMode(GPIOA,10, PAL_MODE_ALTERNATE(1)); // USART1 RX.
+
+  uint8_t buf[10];
+  sdStart(&SD1,&default_config);
+  osalThreadSleepMilliseconds(10);
+  myWrite("Hallo!?");
+
+  osalThreadSleepMilliseconds(10);
+
+  sdReadTimeout(&SD1,buf,10, 10);
+
+  sdWrite(&SD1,(const uint8_t *)"Test123",7);
+  osalThreadSleepMilliseconds(10);
+  sdReadTimeout(&SD1,buf,10, 10);
+#endif
+
+  /*
  * SPI LCD Initialize
  */
   ili9341_init();
diff --git a/mcuconf.h b/mcuconf.h
index 6d4550a..e04096c 100644
--- a/mcuconf.h
+++ b/mcuconf.h
@@ -201,7 +201,7 @@
 /*
  * UART driver system settings.
  */
-#define STM32_UART_USE_USART1               TRUE
+#define STM32_UART_USE_USART1               FALSE
 #define STM32_UART_USE_USART2               FALSE
 #define STM32_UART_USART1_IRQ_PRIORITY      3
 #define STM32_UART_USART2_IRQ_PRIORITY      3
diff --git a/sa_core.c b/sa_core.c
index ebf9998..3175531 100644
--- a/sa_core.c
+++ b/sa_core.c
@@ -888,7 +888,7 @@ float perform(bool break_on_operation, int i, int32_t f, int tracking)
       return(0);
     float signal_path_loss;
     if (setting_mode == M_LOW)
-      signal_path_loss = -9.5;      // Loss in dB
+      signal_path_loss = -9.5;      // Loss in dB, -9.5 for v0.1, -12.5 for v0.2
     else
       signal_path_loss = 7;         // Loss in dB (+ is gain)
     float subRSSI = SI4432_RSSI(lf, MODE_SELECT(setting_mode))+settingLevelOffset()+ setting_attenuate - signal_path_loss;