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style: enforce coding standard — headers, @brief on #define, Doxygen on statics, remove _ prefix, max 8 lines per function

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This commit is contained in:
Kevin Thomas
2026-04-16 22:44:43 -04:00
parent 0833c32c94
commit 433263eac0
309 changed files with 10464 additions and 6668 deletions
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drivers/0x09_dht11_cbm/Inc/rp2350.h
+32 -23
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@@ -1,27 +1,36 @@
/**
******************************************************************************
* @file rp2350.h
* @author Kevin Thomas
* @brief RP2350 Device Peripheral Access Layer Header File.
*
* Memory-mapped register structures and peripheral base addresses
* for the RP2350 microcontroller (Cortex-M33 dual-core). All
* register offsets verified against the RP2350 datasheet
* (RP-008373-DS-2).
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350.h
* @brief RP2350 Device Peripheral Access Layer Header File.
* @author Kevin Thomas
* @date 2026
*
* Memory-mapped register structures and peripheral base addresses
* for the RP2350 microcontroller (Cortex-M33 dual-core). All
* register offsets verified against the RP2350 datasheet
* (RP-008373-DS-2).
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __RP2350_H
#define __RP2350_H
drivers/0x09_dht11_cbm/Inc/rp2350_delay.h
+30 -21
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@@ -1,25 +1,34 @@
/**
******************************************************************************
* @file rp2350_delay.h
* @author Kevin Thomas
* @brief Delay driver header for RP2350.
*
* Millisecond and microsecond busy-wait delays calibrated for
* a 12 MHz clock.
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_delay.h
* @brief Delay driver header for RP2350.
* @author Kevin Thomas
* @date 2026
*
* Millisecond and microsecond busy-wait delays calibrated for
* a 12 MHz clock.
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __RP2350_DELAY_H
#define __RP2350_DELAY_H
drivers/0x09_dht11_cbm/Inc/rp2350_dht11.h
+31 -22
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@@ -1,26 +1,35 @@
/**
******************************************************************************
* @file rp2350_dht11.h
* @author Kevin Thomas
* @brief DHT11 temperature and humidity sensor driver for RP2350.
*
* Single-wire protocol driver for the DHT11 sensor on GPIO4.
* Uses SIO for GPIO direction switching and TIMER0 TIMERAWL
* for microsecond pulse-width measurement.
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_dht11.h
* @brief DHT11 temperature and humidity sensor driver for RP2350.
* @author Kevin Thomas
* @date 2026
*
* Single-wire protocol driver for the DHT11 sensor on GPIO4.
* Uses SIO for GPIO direction switching and TIMER0 TIMERAWL
* for microsecond pulse-width measurement.
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __RP2350_DHT11_H
#define __RP2350_DHT11_H
drivers/0x09_dht11_cbm/Inc/rp2350_reset.h
+29 -20
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@@ -1,24 +1,33 @@
/**
******************************************************************************
* @file rp2350_reset.h
* @author Kevin Thomas
* @brief Reset controller driver header for RP2350.
*
* Provides subsystem reset release for IO_BANK0.
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_reset.h
* @brief Reset controller driver header for RP2350.
* @author Kevin Thomas
* @date 2026
*
* Provides subsystem reset release for IO_BANK0.
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __RP2350_RESET_H
#define __RP2350_RESET_H
drivers/0x09_dht11_cbm/Inc/rp2350_reset_handler.h
+31 -22
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@@ -1,26 +1,35 @@
/**
******************************************************************************
* @file rp2350_reset_handler.h
* @author Kevin Thomas
* @brief Reset handler header for RP2350.
*
* Entry point after reset. Performs stack initialization, XOSC
* setup, subsystem reset release, UART initialization,
* and branches to main().
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_reset_handler.h
* @brief Reset handler header for RP2350.
* @author Kevin Thomas
* @date 2026
*
* Entry point after reset. Performs stack initialization, XOSC
* setup, subsystem reset release, UART initialization,
* and branches to main().
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __RP2350_RESET_HANDLER_H
#define __RP2350_RESET_HANDLER_H
drivers/0x09_dht11_cbm/Inc/rp2350_stack.h
+30 -21
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@@ -1,25 +1,34 @@
/**
******************************************************************************
* @file rp2350_stack.h
* @author Kevin Thomas
* @brief Stack pointer initialization header for RP2350.
*
* Sets MSP, PSP, MSPLIM, and PSPLIM from the STACK_TOP and
* STACK_LIMIT values defined in rp2350.h.
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_stack.h
* @brief Stack pointer initialization header for RP2350.
* @author Kevin Thomas
* @date 2026
*
* Sets MSP, PSP, MSPLIM, and PSPLIM from the STACK_TOP and
* STACK_LIMIT values defined in rp2350.h.
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __RP2350_STACK_H
#define __RP2350_STACK_H
drivers/0x09_dht11_cbm/Inc/rp2350_uart.h
+30 -21
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@@ -1,25 +1,34 @@
/**
******************************************************************************
* @file rp2350_uart.h
* @author Kevin Thomas
* @brief UART0 driver header for RP2350.
*
* Bare-metal UART0 driver supporting TX/RX on GPIO 0/1 at
* 115200 baud (12 MHz XOSC clock).
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_uart.h
* @brief UART0 driver header for RP2350.
* @author Kevin Thomas
* @date 2026
*
* Bare-metal UART0 driver supporting TX/RX on GPIO 0/1 at
* 115200 baud (12 MHz XOSC clock).
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __RP2350_UART_H
#define __RP2350_UART_H
drivers/0x09_dht11_cbm/Inc/rp2350_xosc.h
+30 -21
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@@ -1,25 +1,34 @@
/**
******************************************************************************
* @file rp2350_xosc.h
* @author Kevin Thomas
* @brief XOSC driver header for RP2350.
*
* External crystal oscillator initialization and peripheral
* clock enable using the XOSC registers.
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_xosc.h
* @brief XOSC driver header for RP2350.
* @author Kevin Thomas
* @date 2026
*
* External crystal oscillator initialization and peripheral
* clock enable using the XOSC registers.
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __RP2350_XOSC_H
#define __RP2350_XOSC_H
drivers/0x09_dht11_cbm/Src/image_def.c
+30 -21
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@@ -1,25 +1,34 @@
/**
******************************************************************************
* @file image_def.c
* @author Kevin Thomas
* @brief RP2350 IMAGE_DEF block for boot ROM image recognition.
*
* Must appear within the first 4 KB of flash for the boot ROM
* to accept the image.
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file image_def.c
* @brief RP2350 IMAGE_DEF block for boot ROM image recognition.
* @author Kevin Thomas
* @date 2026
*
* Must appear within the first 4 KB of flash for the boot ROM
* to accept the image.
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdint.h>
__attribute__((section(".embedded_block"), used))
drivers/0x09_dht11_cbm/Src/main.c
+41 -31
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@@ -1,33 +1,42 @@
/**
******************************************************************************
* @file main.c
* @author Kevin Thomas
* @brief DHT11 temperature and humidity sensor demonstration.
*
* Reads the DHT11 sensor on GPIO4 every 2 seconds, printing
* humidity and temperature over UART. Reports read failures
* for wiring diagnostics.
*
* Wiring:
* GPIO0 -> UART TX (USB-to-UART adapter RX)
* GPIO1 -> UART RX (USB-to-UART adapter TX)
* GPIO4 -> DHT11 DATA (10k pull-up to 3.3V recommended)
* 3.3V -> DHT11 VCC
* GND -> DHT11 GND
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file main.c
* @brief DHT11 temperature and humidity sensor demonstration.
* @author Kevin Thomas
* @date 2026
*
* Reads the DHT11 sensor on GPIO4 every 2 seconds, printing
* humidity and temperature over UART. Reports read failures
* for wiring diagnostics.
*
* Wiring:
* GPIO0 -> UART TX (USB-to-UART adapter RX)
* GPIO1 -> UART RX (USB-to-UART adapter TX)
* GPIO4 -> DHT11 DATA (10k pull-up to 3.3V recommended)
* 3.3V -> DHT11 VCC
* GND -> DHT11 GND
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "rp2350_dht11.h"
#include "rp2350_uart.h"
#include "rp2350_delay.h"
@@ -36,6 +45,7 @@
/**
* @brief Minimum polling interval for the DHT11 sensor in milliseconds.
*/
/** @brief Interval between DHT11 sensor reads in milliseconds */
#define DHT11_POLL_MS 2000U
/**
@@ -86,7 +96,7 @@ static void print_failure(void)
* @brief Initialize clocks, timer, DHT11, and announce over UART.
* @retval None
*/
static void _dht11_setup(void)
static void dht11_setup(void)
{
uint8_t dummy_h;
uint8_t dummy_t;
@@ -117,7 +127,7 @@ static void poll_sensor(void)
int main(void)
{
_dht11_setup();
dht11_setup();
while (1)
poll_sensor();
}
drivers/0x09_dht11_cbm/Src/rp2350_delay.c
+30 -21
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@@ -1,25 +1,34 @@
/**
******************************************************************************
* @file rp2350_delay.c
* @author Kevin Thomas
* @brief Delay driver implementation for RP2350.
*
* Busy-wait millisecond and microsecond delays calibrated for
* a 12 MHz clock.
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_delay.c
* @brief Delay driver implementation for RP2350.
* @author Kevin Thomas
* @date 2026
*
* Busy-wait millisecond and microsecond delays calibrated for
* a 12 MHz clock.
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "rp2350_delay.h"
void delay_ms(uint32_t ms)
drivers/0x09_dht11_cbm/Src/rp2350_dht11.c
+34 -25
View File
@@ -1,27 +1,36 @@
/**
******************************************************************************
* @file rp2350_dht11.c
* @author Kevin Thomas
* @brief DHT11 temperature and humidity sensor driver for RP2350.
*
* Implements the single-wire DHT11 protocol using bare-metal
* SIO GPIO control and TIMER0 microsecond timestamps. Reads
* 40 bits (humidity high, humidity low, temperature high,
* temperature low, checksum) with timeout protection.
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_dht11.c
* @brief DHT11 temperature and humidity sensor driver for RP2350.
* @author Kevin Thomas
* @date 2026
*
* Implements the single-wire DHT11 protocol using bare-metal
* SIO GPIO control and TIMER0 microsecond timestamps. Reads
* 40 bits (humidity high, humidity low, temperature high,
* temperature low, checksum) with timeout protection.
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "rp2350_dht11.h"
#include "rp2350_delay.h"
@@ -166,7 +175,7 @@ static bool read_bit(uint8_t *data, uint8_t bit)
* @param data 5-byte array filled with received data
* @retval bool true if all bits read, false on timeout
*/
static bool _read_40_bits(uint8_t *data)
static bool read_40_bits(uint8_t *data)
{
for (uint8_t i = 0; i < DHT11_DATA_BITS; i++)
if (!read_bit(data, i))
@@ -260,7 +269,7 @@ static bool acquire_data(uint8_t *data)
send_start_signal();
if (!wait_response())
return false;
if (!_read_40_bits(data))
if (!read_40_bits(data))
return false;
return validate_checksum(data);
}
drivers/0x09_dht11_cbm/Src/rp2350_reset.c
+30 -21
View File
@@ -1,25 +1,34 @@
/**
******************************************************************************
* @file rp2350_reset.c
* @author Kevin Thomas
* @brief Reset controller driver implementation for RP2350.
*
* Releases IO_BANK0 from reset and waits until the subsystem
* is ready.
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_reset.c
* @brief Reset controller driver implementation for RP2350.
* @author Kevin Thomas
* @date 2026
*
* Releases IO_BANK0 from reset and waits until the subsystem
* is ready.
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "rp2350_reset.h"
void reset_init_subsystem(void)
drivers/0x09_dht11_cbm/Src/rp2350_reset_handler.c
+31 -22
View File
@@ -1,26 +1,35 @@
/**
******************************************************************************
* @file rp2350_reset_handler.c
* @author Kevin Thomas
* @brief Reset handler implementation for RP2350.
*
* Entry point after power-on or system reset. Initializes the
* stack, XOSC, subsystem resets, UART, then branches
* to main().
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_reset_handler.c
* @brief Reset handler implementation for RP2350.
* @author Kevin Thomas
* @date 2026
*
* Entry point after power-on or system reset. Initializes the
* stack, XOSC, subsystem resets, UART, then branches
* to main().
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "rp2350_reset_handler.h"
#include "rp2350_stack.h"
#include "rp2350_xosc.h"
drivers/0x09_dht11_cbm/Src/rp2350_stack.c
+29 -20
View File
@@ -1,24 +1,33 @@
/**
******************************************************************************
* @file rp2350_stack.c
* @author Kevin Thomas
* @brief Stack pointer initialization for RP2350.
*
* Sets MSP, PSP, MSPLIM, and PSPLIM using inline assembly.
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_stack.c
* @brief Stack pointer initialization for RP2350.
* @author Kevin Thomas
* @date 2026
*
* Sets MSP, PSP, MSPLIM, and PSPLIM using inline assembly.
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "rp2350_stack.h"
void stack_init(void)
drivers/0x09_dht11_cbm/Src/rp2350_uart.c
+31 -21
View File
@@ -1,27 +1,37 @@
/**
******************************************************************************
* @file rp2350_uart.c
* @author Kevin Thomas
* @brief UART0 driver implementation for RP2350.
*
* Configures UART0 on GPIO 0 (TX) and GPIO 1 (RX) at 115200
* baud using the 12 MHz XOSC clock.
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_uart.c
* @brief UART0 driver implementation for RP2350.
* @author Kevin Thomas
* @date 2026
*
* Configures UART0 on GPIO 0 (TX) and GPIO 1 (RX) at 115200
* baud using the 12 MHz XOSC clock.
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "rp2350_uart.h"
/** @brief Base address pointer for UART0 peripheral registers */
#define UART_BASE ((volatile uint32_t *) UART0_BASE)
/**
drivers/0x09_dht11_cbm/Src/rp2350_xosc.c
+30 -21
View File
@@ -1,25 +1,34 @@
/**
******************************************************************************
* @file rp2350_xosc.c
* @author Kevin Thomas
* @brief XOSC driver implementation for RP2350.
*
* Configures the external crystal oscillator and enables the
* peripheral clock sourced from XOSC.
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_xosc.c
* @brief XOSC driver implementation for RP2350.
* @author Kevin Thomas
* @date 2026
*
* Configures the external crystal oscillator and enables the
* peripheral clock sourced from XOSC.
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "rp2350_xosc.h"
void xosc_init(void)
drivers/0x09_dht11_cbm/Src/vector_table.c
+31 -22
View File
@@ -1,26 +1,35 @@
/**
******************************************************************************
* @file vector_table.c
* @author Kevin Thomas
* @brief Vector table with initial stack pointer and reset handler.
*
* Placed in the .vectors section at the start of flash.
* The Thumb bit (bit 0 = 1) is automatically set by the
* linker for function pointers in Thumb mode.
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file vector_table.c
* @brief Vector table with initial stack pointer and reset handler.
* @author Kevin Thomas
* @date 2026
*
* Placed in the .vectors section at the start of flash.
* The Thumb bit (bit 0 = 1) is automatically set by the
* linker for function pointers in Thumb mode.
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdint.h>
extern uint32_t _stack_top;