diff --git a/libraries/AP_HAL_ChibiOS/AnalogIn.cpp b/libraries/AP_HAL_ChibiOS/AnalogIn.cpp
index 99e76b1d1c..dd79b1997c 100644
--- a/libraries/AP_HAL_ChibiOS/AnalogIn.cpp
+++ b/libraries/AP_HAL_ChibiOS/AnalogIn.cpp
@@ -529,7 +529,7 @@ AP_HAL::AnalogSource* AnalogIn::channel(int16_t pin)
             return _channels[j];
         }
     }
-    hal.console->printf("Out of analog channels\n");
+    DEV_PRINTF("Out of analog channels\n");
     return nullptr;
 }
 
diff --git a/libraries/AP_HAL_ChibiOS/I2CDevice.cpp b/libraries/AP_HAL_ChibiOS/I2CDevice.cpp
index 36e3ea9952..cc50bbacad 100644
--- a/libraries/AP_HAL_ChibiOS/I2CDevice.cpp
+++ b/libraries/AP_HAL_ChibiOS/I2CDevice.cpp
@@ -267,7 +267,7 @@ I2CDevice::I2CDevice(uint8_t busnum, uint8_t address, uint32_t bus_clock, bool u
             bus.i2ccfg.duty_cycle = STD_DUTY_CYCLE;
         }
 #endif
-        hal.console->printf("I2C%u clock %ukHz\n", busnum, unsigned(bus.busclock/1000));
+        DEV_PRINTF("I2C%u clock %ukHz\n", busnum, unsigned(bus.busclock/1000));
     }
 }
 
@@ -298,7 +298,7 @@ bool I2CDevice::transfer(const uint8_t *send, uint32_t send_len,
                          uint8_t *recv, uint32_t recv_len)
 {
     if (!bus.semaphore.check_owner()) {
-        hal.console->printf("I2C: not owner of 0x%x for addr 0x%02x\n", (unsigned)get_bus_id(), _address);
+        DEV_PRINTF("I2C: not owner of 0x%x for addr 0x%02x\n", (unsigned)get_bus_id(), _address);
         return false;
     }
 
diff --git a/libraries/AP_HAL_ChibiOS/SPIDevice.cpp b/libraries/AP_HAL_ChibiOS/SPIDevice.cpp
index a6bf9e972f..73f7d99bf7 100644
--- a/libraries/AP_HAL_ChibiOS/SPIDevice.cpp
+++ b/libraries/AP_HAL_ChibiOS/SPIDevice.cpp
@@ -451,16 +451,16 @@ SPIDeviceManager::get_device(const char *name)
 void SPIDevice::test_clock_freq(void)
 {
     // delay for USB to come up
-    hal.console->printf("Waiting for USB\n");
+    DEV_PRINTF("Waiting for USB\n");
     for (uint8_t i=0; i<3; i++) {
         hal.scheduler->delay(1000);
-        hal.console->printf("Waiting %u\n", (unsigned)AP_HAL::millis());
+        DEV_PRINTF("Waiting %u\n", (unsigned)AP_HAL::millis());
     }
-    hal.console->printf("CLOCKS=\n");
+    DEV_PRINTF("CLOCKS=\n");
     for (uint8_t i=0; i<ARRAY_SIZE(bus_clocks); i++) {
-        hal.console->printf("%u:%u ", unsigned(i+1), unsigned(bus_clocks[i]));
+        DEV_PRINTF("%u:%u ", unsigned(i+1), unsigned(bus_clocks[i]));
     }
-    hal.console->printf("\n");
+    DEV_PRINTF("\n");
 
     // we will send 1024 bytes without any CS asserted and measure the
     // time it takes to do the transfer
@@ -485,7 +485,7 @@ void SPIDevice::test_clock_freq(void)
         chSysUnlock();
         if (msg == MSG_TIMEOUT) {
             spiAbort(spi_devices[i].driver);
-            hal.console->printf("SPI[%u] FAIL %p %p\n", spi_devices[i].busid, buf1, buf2);
+            DEV_PRINTF("SPI[%u] FAIL %p %p\n", spi_devices[i].busid, buf1, buf2);
             spiStop(spi_devices[i].driver);
             spiReleaseBus(spi_devices[i].driver);
             continue;
@@ -493,7 +493,7 @@ void SPIDevice::test_clock_freq(void)
         uint32_t t1 = AP_HAL::micros();
         spiStop(spi_devices[i].driver);
         spiReleaseBus(spi_devices[i].driver);
-        hal.console->printf("SPI[%u] clock=%u\n", unsigned(spi_devices[i].busid), unsigned(1000000ULL * len * 8ULL / uint64_t(t1 - t0)));
+        DEV_PRINTF("SPI[%u] clock=%u\n", unsigned(spi_devices[i].busid), unsigned(1000000ULL * len * 8ULL / uint64_t(t1 - t0)));
     }
     hal.util->free_type(buf1, len, AP_HAL::Util::MEM_DMA_SAFE);
     hal.util->free_type(buf2, len, AP_HAL::Util::MEM_DMA_SAFE);
diff --git a/libraries/AP_HAL_ChibiOS/Scheduler.cpp b/libraries/AP_HAL_ChibiOS/Scheduler.cpp
index 66c8bb762b..b0beb3f477 100644
--- a/libraries/AP_HAL_ChibiOS/Scheduler.cpp
+++ b/libraries/AP_HAL_ChibiOS/Scheduler.cpp
@@ -226,7 +226,7 @@ void Scheduler::register_timer_process(AP_HAL::MemberProc proc)
         _timer_proc[_num_timer_procs] = proc;
         _num_timer_procs++;
     } else {
-        hal.console->printf("Out of timer processes\n");
+        DEV_PRINTF("Out of timer processes\n");
     }
     chBSemSignal(&_timer_semaphore);
 }
@@ -245,7 +245,7 @@ void Scheduler::register_io_process(AP_HAL::MemberProc proc)
         _io_proc[_num_io_procs] = proc;
         _num_io_procs++;
     } else {
-        hal.console->printf("Out of IO processes\n");
+        DEV_PRINTF("Out of IO processes\n");
     }
     chBSemSignal(&_io_semaphore);
 }
diff --git a/libraries/AP_HAL_ChibiOS/UARTDriver.cpp b/libraries/AP_HAL_ChibiOS/UARTDriver.cpp
index fe0b8f0e09..852841ec1f 100644
--- a/libraries/AP_HAL_ChibiOS/UARTDriver.cpp
+++ b/libraries/AP_HAL_ChibiOS/UARTDriver.cpp
@@ -1156,7 +1156,7 @@ void UARTDriver::write_pending_bytes(void)
         }
         if (AP_HAL::micros() - _first_write_started_us > 500*1000UL) {
             // it doesn't look like hw flow control is working
-            hal.console->printf("disabling flow control on serial %u\n", sdef.get_index());
+            DEV_PRINTF("disabling flow control on serial %u\n", sdef.get_index());
             set_flow_control(FLOW_CONTROL_DISABLE);
         }
     }