ASR6601 SiP: built-in Semtech SX1262 radio receive and transmit funct…

…ions are doing Ok [skip ci]

README.md

@@ -77,6 +77,7 @@ Model(s)|Platform|First appearance|       Sta
 [**Badge**](https://github.com/lyusupov/SoftRF/wiki/Badge-Edition)&nbsp;![](https://github.com/lyusupov/SoftRF/raw/master/documents/images/new-icon.jpg)|[Nordic Semiconductor<br>nRF52840](https://www.nordicsemi.com/Products/Low-power-short-range-wireless/nRF52840)|Q4 2020|![](https://via.placeholder.com/140x70/00A000/000000?text=Good)|&nbsp;
 ES|[NXP Semiconductors<br>LPC4320](https://en.wikipedia.org/wiki/NXP_LPC#LPC4000_series)|Q2 2021|![](https://via.placeholder.com/140x70/FFFF00/000000?text=In+progress)|Unique RF radio specs are useful for 1090ES **ADS-B** reception [ [1](https://user-images.githubusercontent.com/5849637/140610617-7c74582e-b0d7-4610-8ac2-d51f55c9086d.png) , [2](https://raw.githubusercontent.com/lyusupov/SoftRF/master/documents/images/ES-1.jpg) ]
 [Academy](https://github.com/lyusupov/SoftRF/wiki/Academy-Edition)&nbsp;![](https://github.com/lyusupov/SoftRF/raw/master/documents/images/new-icon.jpg)|[Microchip&nbsp;(Atmel)<br>SAM&nbsp;D21](https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/32-bit-mcus/sam-32-bit-mcus/sam-d) and [ATmega2560](https://www.microchip.com/en-us/product/ATmega2560)|Q4 2021|![](https://via.placeholder.com/140x40/c5f015/000000?text=May+need)<br>![](https://via.placeholder.com/140x40/c5f015/000000?text=improvements)<!-- ![](https://via.placeholder.com/140x70/FFFF00/000000?text=In+progress) -->|good for teaching students of air traffic proximity awareness
+|[ASR Microelectronics<br>ASR6601](https://asriot.readthedocs.io/en/latest/index.html)|Q1 2022|![](https://via.placeholder.com/140x70/FFFF00/000000?text=In+progress)| [ [1](https://user-images.githubusercontent.com/5849637/152556525-8e50c1af-9ea0-4d8a-a866-4864bb2a5186.png) ]
 
 ## By sub-1 GHz radio
 Radio|Model(s)|First appearance|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Status&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;|Notes

software/firmware/source/SoftRF/src/driver/RF.cpp

@@ -778,10 +778,7 @@ static bool sx1276_probe()
 
 #define CMD_READREGISTER            0x1D
 #define REG_LORASYNCWORDLSB         0x0741
-
-#if !defined(SX126X_DEF_LORASYNCWORDLSB)
 #define SX126X_DEF_LORASYNCWORDLSB  0x24
-#endif
 
 static void sx1262_ReadRegs (uint16_t addr, uint8_t* data, uint8_t len) {
     hal_spi_select(1);

software/firmware/source/SoftRF/src/platform/ASR66.cpp

@@ -113,7 +113,10 @@ static void ASR66_User_Key_Wakeup()
 
 static void ASR66_setup()
 {
+  NVIC_DisableIRQ(LORA_IRQn);
 
+  pinMode(SOC_GPIO_PIN_ANT_VDD, OUTPUT);
+  digitalWrite(SOC_GPIO_PIN_ANT_VDD, HIGH);
 }
 
 static void ASR66_post_init()

software/firmware/source/SoftRF/src/platform/ASR66.h

@@ -53,8 +53,6 @@
 #define SERIAL_FLUSH()          ({ while (Serial         .availableForWrite() < 1024); })
 #define GNSS_FLUSH()            ({ while (Serial_GNSS_Out.availableForWrite() < 1024); })
 
-#define SX126X_DEF_LORASYNCWORDLSB  0xB2
-
 enum rst_reason {
   REASON_DEFAULT_RST      = 0,  /* normal startup by power on */
   REASON_WDT_RST          = 1,  /* hardware watch dog reset */
@@ -88,7 +86,7 @@ struct rst_info {
 #define SOC_GPIO_PIN_GNSS_RX  4
 #define SOC_GPIO_PIN_UART1_TX 5  /* NC */
 
-#define SOC_GPIO_PIN_UART3_RX 45 /* NC */
+#define SOC_GPIO_PIN_UART3_RX 29 /* NC */
 #define SOC_GPIO_PIN_GNSS_TX  44
 
 #define SOC_GPIO_PIN_LED      SOC_UNUSED_PIN
@@ -116,7 +114,8 @@ struct rst_info {
 #define SOC_GPIO_PIN_DIO1     LMIC_UNUSED_PIN
 
 /* RF antenna switch */
-#define SOC_GPIO_PIN_ANT_RXTX LMIC_UNUSED_PIN
+#define SOC_GPIO_PIN_ANT_RXTX 59
+#define SOC_GPIO_PIN_ANT_VDD  45
 
 /* I2C */
 #define SOC_GPIO_PIN_SDA      15

software/firmware/source/libraries/arduino-basicmac/src/hal/hal.cpp

@@ -126,10 +126,7 @@ bool hal_pin_rst (u1_t val) {
 }
 #else
 bool hal_pin_rst (u1_t val) {
-    if (val == 0)
-      LORAC->CR1 |= 1<<5;  //nreset
-    else
-      LORAC->CR1 &= ~(1<<7); //por
+    if (val) SX126xReset();
 
     return true;
 }
@@ -283,18 +280,9 @@ void hal_pin_busy_wait (void) {
 }
 #else
 void hal_pin_busy_wait (void) {
-    delayMicroseconds(10);
-    int n = 0;
-    while( LORAC->SR & 0x100 )
-    {
-        delayMicroseconds(1);
-        n++;
-        if(n>=10000)
-        {
-//           printf("spi busy\r\n");
-           break;
-        }
-    }
+    unsigned long start = micros();
+
+    while(((micros() - start) < MAX_BUSY_TIME) && (LORAC->SR & 0x100)) /* wait */;
 }
 #endif /* ARDUINO_ARCH_ASR6601 */
 

software/firmware/source/libraries/arduino-basicmac/src/hal/target-config.h

@@ -94,6 +94,9 @@ enum _dr_eu868_t { DR_SF12=0, DR_SF11, DR_SF10, DR_SF9, DR_SF8, DR_SF7, DR_SF7B,
 #if defined(ESP32) || defined(ESP8266) || defined(__ASR6501__) || \
     defined(ARDUINO_ARCH_ASR650X) || defined(ARDUINO_ARCH_ASR6601)
 #include <pgmspace.h>
+#if defined(ARDUINO_ARCH_ASR6601)
+#include "tremo_regs.h"
+#endif /* ARDUINO_ARCH_ASR6601 */
 #elif defined(ARDUINO_ARCH_NRF52)
 #include <avr/pgmspace.h>
 #endif

software/firmware/source/libraries/arduino-basicmac/src/lmic/radio-sx126x.c

@@ -314,7 +314,10 @@ static void SetDIO3AsTcxoCtrl (uint8_t voltage) {
     uint32_t timeout = 320;
     uint8_t data[] = {voltage, (timeout >> 16) & 0xff, (timeout >> 8) & 0xff, timeout & 0xff };
 
-    writecmd(CMD_SETDIO3ASTCXOCTRL, data, sizeof(data));
+#if defined(ARDUINO_ARCH_ASR6601)
+    if (LORAC->CR1 & 0x1)
+#endif /* ARDUINO_ARCH_ASR6601 */
+      writecmd(CMD_SETDIO3ASTCXOCTRL, data, sizeof(data));
 }
 
 // write payload to fifo buffer at offset 0