Merge pull request #742 from quen0n/patch-1

Status output !TX/RX on the GDO2 CC1101 pin
DarkFlippers · Apr 5, 2024 · f8d4d93 · f8d4d93
2 parents 5ba6e32 + f5ca3ed
commit f8d4d93
Showing 1 changed file with 20 additions and 1 deletion.
diff --git a/applications/drivers/subghz/cc1101_ext/cc1101_ext.c b/applications/drivers/subghz/cc1101_ext/cc1101_ext.c
@@ -181,7 +181,15 @@ static bool subghz_device_cc1101_ext_check_init(void) {
         }
         furi_hal_gpio_init(
             subghz_device_cc1101_ext->g0_pin, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
-
+
+        // Reset GDO2 (!TX/RX) to floating state
+        cc1101_status = cc1101_write_reg(
+            subghz_device_cc1101_ext->spi_bus_handle, CC1101_IOCFG2, CC1101IocfgHighImpedance);
+        if(cc1101_status.CHIP_RDYn != 0) {
+            //timeout or error
+            break;
+        }
+
         // Go to sleep
         cc1101_status = cc1101_shutdown(subghz_device_cc1101_ext->spi_bus_handle);
         if(cc1101_status.CHIP_RDYn != 0) {
@@ -410,6 +418,9 @@ void subghz_device_cc1101_ext_reset(void) {
     // Warning: push pull cc1101 clock output on GD0
     cc1101_write_reg(
         subghz_device_cc1101_ext->spi_bus_handle, CC1101_IOCFG0, CC1101IocfgHighImpedance);
+    // Reset GDO2 (!TX/RX) to floating state
+    cc1101_write_reg(
+        subghz_device_cc1101_ext->spi_bus_handle, CC1101_IOCFG2, CC1101IocfgHighImpedance);
     furi_hal_spi_release(subghz_device_cc1101_ext->spi_bus_handle);
 }
 
@@ -419,6 +430,9 @@ void subghz_device_cc1101_ext_idle(void) {
     //waiting for the chip to switch to IDLE mode
     furi_check(cc1101_wait_status_state(
         subghz_device_cc1101_ext->spi_bus_handle, CC1101StateIDLE, 10000));
+    // Reset GDO2 (!TX/RX) to floating state
+    cc1101_write_reg(
+        subghz_device_cc1101_ext->spi_bus_handle, CC1101_IOCFG2, CC1101IocfgHighImpedance);
     furi_hal_spi_release(subghz_device_cc1101_ext->spi_bus_handle);
     if(subghz_device_cc1101_ext->power_amp) {
         furi_hal_gpio_write(SUBGHZ_DEVICE_CC1101_EXT_E07_AMP_GPIO, 0);
@@ -431,6 +445,9 @@ void subghz_device_cc1101_ext_rx(void) {
     //waiting for the chip to switch to Rx mode
     furi_check(
         cc1101_wait_status_state(subghz_device_cc1101_ext->spi_bus_handle, CC1101StateRX, 10000));
+    // Go GDO2 (!TX/RX) to high (RX state)
+    cc1101_write_reg(
+        subghz_device_cc1101_ext->spi_bus_handle, CC1101_IOCFG2, CC1101IocfgHW | CC1101_IOCFG_INV);
     furi_hal_spi_release(subghz_device_cc1101_ext->spi_bus_handle);
     if(subghz_device_cc1101_ext->power_amp) {
         furi_hal_gpio_write(SUBGHZ_DEVICE_CC1101_EXT_E07_AMP_GPIO, 0);
@@ -444,6 +461,8 @@ bool subghz_device_cc1101_ext_tx(void) {
     //waiting for the chip to switch to Tx mode
     furi_check(
         cc1101_wait_status_state(subghz_device_cc1101_ext->spi_bus_handle, CC1101StateTX, 10000));
+    // Go GDO2 (!TX/RX) to low (TX state)
+    cc1101_write_reg(subghz_device_cc1101_ext->spi_bus_handle, CC1101_IOCFG2, CC1101IocfgHW);
     furi_hal_spi_release(subghz_device_cc1101_ext->spi_bus_handle);
     if(subghz_device_cc1101_ext->power_amp) {
         furi_hal_gpio_write(SUBGHZ_DEVICE_CC1101_EXT_E07_AMP_GPIO, 1);