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Commit Graph

134 Commits

Author SHA1 Message Date
Gerson Fernando Budke
783afbc666 cpu/avr8_common: Add AVR8_ISR macro
The current ISR implementation for AVR8 requires use of
avr8_[enter/exit]_isr pair which add some boilerplate on code.
This add AVR8_ISR which clean-up the code and make it simpler
and hides any schedule detail from the user perspective.

This is a preparation for future scheduling and irq optimizations.

Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
2023-07-05 20:00:19 +02:00
Gerson Fernando Budke
b7873015aa cpu/avr8_common: Split avr8_state
The avr8_state store state information used to determine scheduling
and uart irq. This move all uart irq states to avr8_state_uart
variable. It introduce the use of General Purpose IO Register 0
(GPIOR0) when available and now all uarts from xmega can be used.

This is a preparation for future scheduling and irq optimizations.

Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
2023-07-05 19:01:13 +02:00
bors[bot]
9d596734a1
Merge #19752
19752: cpu/atmega_common: checking features instead of CPU models r=benpicco a=hugueslarrive

### Contribution description
Splitted from:
- #19740

### Testing procedure
Tested on atmega8 with:
- #19755

This one probably need to be tested on others cpu.
### Tests on 1284p:
#### tests/periph/adc
```
tests/periph/adc$ BOARD=atmega1284p make -j64 clean all | grep '^  ' && BOARD=atmega1284p AVRDUDE_PROGRAMMER='usbasp -F' make flash 2>&1 | grep -- 'of flash' && BOARD=atmega1284p PORT=/dev/ttyACM0 make term
   text	   data	    bss	    dec	    hex	filename
  10712	    304	   1021	  12037	   2f05	/home/hugues/github/cpu_atmega_common/RIOT/tests/periph/adc/bin/atmega1284p/tests_adc.elf
avrdude: 11016 bytes of flash written
avrdude: 11016 bytes of flash verified
/home/hugues/github/cpu_atmega_common/RIOT/dist/tools/pyterm/pyterm -p "/dev/ttyACM0" -b "9600"  
Twisted not available, please install it if you want to use pyterm's JSON capabilities
2023-06-22 18:44:54,846 # Connect to serial port /dev/ttyACM0
Welcome to pyterm!
Type '/exit' to exit.
2023-06-22 18:44:55,848 # 

2023-06-22 18:44:55,848 # main(): This is RIOT! (Version: 2020.07-devel-15351-gc5f75c-cpu/atmega_common)
2023-06-22 18:44:55,848 # 
2023-06-22 18:44:55,849 # RIOT ADC peripheral driver test
2023-06-22 18:44:55,849 # 
2023-06-22 18:44:55,850 # This test will sample all available ADC lines once every 100ms with
2023-06-22 18:44:55,850 # a 10-bit resolution and print the sampled results to STDIO
2023-06-22 18:44:55,850 # 
2023-06-22 18:44:55,850 # 
2023-06-22 18:44:55,851 # Successfully initialized ADC_LINE(0)
2023-06-22 18:44:55,851 # Successfully initialized ADC_LINE(1)
2023-06-22 18:44:55,851 # Successfully initialized ADC_LINE(2)
2023-06-22 18:44:55,852 # Successfully initialized ADC_LINE(3)
2023-06-22 18:44:55,852 # Successfully initialized ADC_LINE(4)
2023-06-22 18:44:55,852 # Successfully initialized ADC_LINE(5)
2023-06-22 18:44:55,853 # Successfully initialized ADC_LINE(6)
2023-06-22 18:44:55,853 # Successfully initialized ADC_LINE(7)
2023-06-22 18:44:55,853 # ADC_LINE(0): 796
2023-06-22 18:44:55,854 # ADC_LINE(1): 599
2023-06-22 18:44:55,854 # ADC_LINE(2): 522
2023-06-22 18:44:55,854 # ADC_LINE(3): 485
2023-06-22 18:44:55,854 # ADC_LINE(4): 466
2023-06-22 18:44:55,854 # ADC_LINE(5): 466
2023-06-22 18:44:55,854 # ADC_LINE(6): 478
2023-06-22 18:44:55,855 # ADC_LINE(7): 501
2023-06-22 18:44:55,855 #  Exiting Pyterm
make: *** [/home/hugues/github/cpu_atmega_common/RIOT/tests/periph/adc/../../../Makefile.include:879: term] Interrompre
```
#### tests/periph/gpio
```
tests/periph/gpio$ BOARD=atmega1284p make -j64 clean all | grep '^  ' && BOARD=atmega1284p AVRDUDE_PROGRAMMER='usbasp -F' make flash 2>&1 | grep -- 'of flash' && BOARD=atmega1284p PORT=/dev/ttyACM0 make term
   text	   data	    bss	    dec	    hex	filename
  17828	   2112	   1095	  21035	   522b	/home/hugues/github/cpu_atmega_common/RIOT/tests/periph/gpio/bin/atmega1284p/tests_gpio.elf
avrdude: 19940 bytes of flash written
avrdude: 19940 bytes of flash verified
/home/hugues/github/cpu_atmega_common/RIOT/dist/tools/pyterm/pyterm -p "/dev/ttyACM0" -b "9600"  
Twisted not available, please install it if you want to use pyterm's JSON capabilities
2023-06-22 18:46:50,726 # Connect to serial port /dev/ttyACM0
Welcome to pyterm!
Type '/exit' to exit.
2023-06-22 18:46:51,734 # This is RIOT! (Version: 2020.07-devel-15351-gc5f75c-cpu/atmega_common)
2023-06-22 18:46:51,734 # GPIO peripheral driver test
2023-06-22 18:46:51,734 # 
2023-06-22 18:46:51,735 # In this test, pins are specified by integer port and pin numbers.
2023-06-22 18:46:51,735 # So if your platform has a pin PA01, it will be port=0 and pin=1,
2023-06-22 18:46:51,736 # PC14 would be port=2 and pin=14 etc.
2023-06-22 18:46:51,736 # 
2023-06-22 18:46:51,736 # NOTE: make sure the values you use exist on your platform! The
2023-06-22 18:46:51,738 #       behavior for not existing ports/pins is not defined!
init_out 1 5
2023-06-22 18:47:50,380 # init_out 1 5
toggle 1 5
2023-06-22 18:48:09,425 # toggle 1 5
> toggle 1 5
2023-06-22 18:48:12,477 # toggle 1 5
> 2023-06-22 18:48:15,013 # Exiting Pyterm
```
#### tests/periph/i2c
```
tests/periph/i2c$ BOARD=atmega1284p make -j64 clean all | grep '^  ' && BOARD=atmega1284p AVRDUDE_PROGRAMMER='usbasp -F' make flash 2>&1 | grep -- 'of flash' && BOARD=atmega1284p PORT=/dev/ttyACM0 make term
   text	   data	    bss	    dec	    hex	filename
  18634	   1288	   1215	  21137	   5291	/home/hugues/github/cpu_atmega_common/RIOT/tests/periph/i2c/bin/atmega1284p/tests_i2c.elf
avrdude: 19922 bytes of flash written
avrdude: 19922 bytes of flash verified
/home/hugues/github/cpu_atmega_common/RIOT/dist/tools/pyterm/pyterm -p "/dev/ttyACM0" -b "9600"  
Twisted not available, please install it if you want to use pyterm's JSON capabilities
2023-06-22 18:50:37,434 # Connect to serial port /dev/ttyACM0
Welcome to pyterm!
Type '/exit' to exit.
2023-06-22 18:50:38,437 # 
2023-06-22 18:50:38,438 # main(): This is RIOT! (Version: 2020.07-devel-15351-gc5f75c-cpu/atmega_common)
2023-06-22 18:50:38,438 # Start: Test for the low-level I2C driver
> i2c_scan 0
2023-06-22 18:51:37,661 # i2c_scan 0
2023-06-22 18:51:37,687 # Scanning I2C device 0...
2023-06-22 18:51:37,765 # addr not ack'ed = "-", addr ack'ed = "X", addr reserved = "R", error = "E"
2023-06-22 18:51:37,804 #      0 1 2 3 4 5 6 7 8 9 a b c d e f
2023-06-22 18:51:37,842 # 0x00 R R R R R R R R R R R R R R - -
2023-06-22 18:51:37,881 # 0x10 - - - - - - - - - - - - - - - -
2023-06-22 18:51:37,919 # 0x20 - - - - - - - - - - - - - - - -
2023-06-22 18:51:37,958 # 0x30 - - - - - - - - - - - - - - - -
2023-06-22 18:51:37,996 # 0x40 - - - - - - - - - - - - - - - -
2023-06-22 18:51:38,035 # 0x50 - - - - - - - - - - - - - - - -
2023-06-22 18:51:38,073 # 0x60 - - - - - - - - - - - - - - - -
2023-06-22 18:51:38,112 # 0x70 - - - - - - - - R R R R R R R R
> 2023-06-22 18:52:54,462 # Exiting Pyterm
```
#### tests/periph/pwm
```
tests/periph/pwm$ BOARD=atmega1284p make -j64 clean all | grep '^  ' && BOARD=atmega1284p AVRDUDE_PROGRAMMER='usbasp -F' make flash 2>&1 | grep -- 'of flash' && BOARD=atmega1284p PORT=/dev/ttyACM0 make term
   text	   data	    bss	    dec	    hex	filename
  15382	    896	   1093	  17371	   43db	/home/hugues/github/cpu_atmega_common/RIOT/tests/periph/pwm/bin/atmega1284p/tests_pwm.elf
avrdude: 16278 bytes of flash written
avrdude: 16278 bytes of flash verified
/home/hugues/github/cpu_atmega_common/RIOT/dist/tools/pyterm/pyterm -p "/dev/ttyACM0" -b "9600"  
Twisted not available, please install it if you want to use pyterm's JSON capabilities
2023-06-22 18:54:32,308 # Connect to serial port /dev/ttyACM0
Welcome to pyterm!
Type '/exit' to exit.
2023-06-22 18:54:33,310 # 
2023-06-22 18:54:33,312 # main(): This is RIOT! (Version: 2020.07-devel-15351-gc5f75c-cpu/atmega_common)
2023-06-22 18:54:33,312 # PWM peripheral driver test
2023-06-22 18:54:33,313 # 
> osci
2023-06-22 18:54:39,105 # osci
2023-06-22 18:54:39,106 # 
2023-06-22 18:54:39,121 # RIOT PWM test
2023-06-22 18:54:39,177 # Connect an LED or scope to PWM pins to see something.
2023-06-22 18:54:39,178 # 
2023-06-22 18:54:39,216 # Available PWM device between 0 and 1
2023-06-22 18:54:39,244 # Initialized PWM_0 @ 488Hz.
2023-06-22 18:54:39,273 # Initialized PWM_1 @ 976Hz.
2023-06-22 18:54:39,274 # 
2023-06-22 18:54:39,313 # Letting the PWM pins oscillate now...
2023-06-22 18:54:45,655 # Exiting Pyterm
```
#### tests/periph/spi
```
tests/periph/spi$ BOARD=atmega1284p make -j64 clean all | grep '^  ' && BOARD=atmega1284p AVRDUDE_PROGRAMMER='usbasp -F' make flash 2>&1 | grep -- 'of flash' && BOARD=atmega1284p PORT=/dev/ttyACM0 make term
   text	   data	    bss	    dec	    hex	filename
  19240	   1402	   2317	  22959	   59af	/home/hugues/github/cpu_atmega_common/RIOT/tests/periph/spi/bin/atmega1284p/tests_spi.elf
avrdude: 20642 bytes of flash written
avrdude: 20642 bytes of flash verified
/home/hugues/github/cpu_atmega_common/RIOT/dist/tools/pyterm/pyterm -p "/dev/ttyACM0" -b "9600"  
Twisted not available, please install it if you want to use pyterm's JSON capabilities
2023-06-22 18:58:12,394 # Connect to serial port /dev/ttyACM0
Welcome to pyterm!
Type '/exit' to exit.
2023-06-22 18:58:13,396 # 
2023-06-22 18:58:13,398 # main(): This is RIOT! (Version: 2020.07-devel-15351-gc5f75c-cpu/atmega_common)
2023-06-22 18:58:13,398 # Manual SPI peripheral driver test (see README.md)
2023-06-22 18:58:13,399 # There are 1 SPI devices configured for your platform.
init 0 0 4
2023-06-22 18:58:32,086 # init 0 0 4
2023-06-22 18:58:32,161 # Trying to initialize SPI_DEV(0): mode: 0, clk: 4, cs_port: 0, cs_pin: 0
2023-06-22 18:58:32,270 # (if below the program crashes with a failed assertion, then it means the configuration is not supported)
2023-06-22 18:58:32,280 # Success.
bench
2023-06-22 18:58:41,590 # bench
2023-06-22 18:58:41,644 # ### Running some benchmarks, all values in [us] ###
2023-06-22 18:58:41,682 # ### Test				Transfer time	user time
2023-06-22 18:58:41,683 # 
2023-06-22 18:58:41,755 #  1 - write 1000 times 1 byte:			28456	28640
2023-06-22 18:58:41,827 #  2 - write 1000 times 2 byte:			28184	28352
2023-06-22 18:58:42,454 #  3 - write 1000 times 100 byte:		579528	579704
2023-06-22 18:58:42,563 #  4 - write 1000 times 1 byte to register:	54080	54256
2023-06-22 18:58:42,674 #  5 - write 1000 times 2 byte to register:	56720	56888
2023-06-22 18:58:43,340 #  6 - write 1000 times 100 byte to register:	608152	608320
2023-06-22 18:58:43,412 #  7 - read 1000 times 2 byte:			28304	28480
2023-06-22 18:58:44,025 #  8 - read 1000 times 100 byte:		567408	567576
2023-06-22 18:58:44,138 #  9 - read 1000 times 2 byte from register:	56840	57016
2023-06-22 18:58:44,793 # 10 - read 1000 times 100 byte from register:	596024	596200
2023-06-22 18:58:44,868 # 11 - transfer 1000 times 2 byte:		28336	28512
2023-06-22 18:58:45,510 # 12 - transfer 1000 times 100 byte:		592128	592304
2023-06-22 18:58:45,625 # 13 - transfer 1000 times 2 byte to register:	56960	57136
2023-06-22 18:58:46,306 # 14 - transfer 1000 times 100 byte to register:620744	620920
2023-06-22 18:58:46,373 # 15 - acquire/release 1000 times:		20960	21136
2023-06-22 18:58:46,879 # -- - SUM:					3922824	3925440
2023-06-22 18:58:46,880 # 
2023-06-22 18:58:46,907 # ### All runs complete ###
> 2023-06-22 18:58:54,706 # Exiting Pyterm
```
I always wonder how fast it really goes:
- #16727
- #18374
#### tests/periph/timer
```
tests/periph/timer$ BOARD=atmega1284p make -j64 clean all | grep '^  ' && BOARD=atmega1284p AVRDUDE_PROGRAMMER='usbasp -F' make flash 2>&1 | grep -- 'of flash' && BOARD=atmega1284p PORT=/dev/ttyACM0 make term
   text	   data	    bss	    dec	    hex	filename
   8968	    274	   1032	  10274	   2822	/home/hugues/github/cpu_atmega_common/RIOT/tests/periph/timer/bin/atmega1284p/tests_timer.elf
avrdude: 9242 bytes of flash written
avrdude: 9242 bytes of flash verified
/home/hugues/github/cpu_atmega_common/RIOT/dist/tools/pyterm/pyterm -p "/dev/ttyACM0" -b "9600"  
Twisted not available, please install it if you want to use pyterm's JSON capabilities
2023-06-22 19:00:15,136 # Connect to serial port /dev/ttyACM0
Welcome to pyterm!
Type '/exit' to exit.
2023-06-22 19:00:16,138 # 
2023-06-22 19:00:16,139 # Help: Press s to start test, r to print it is ready
s
2023-06-22 19:00:31,118 # START
2023-06-22 19:00:31,200 # main(): This is RIOT! (Version: 2020.07-devel-15351-gc5f75c-cpu/atmega_common)
2023-06-22 19:00:31,201 # 
2023-06-22 19:00:31,230 # Test for peripheral TIMERs
2023-06-22 19:00:31,231 # 
2023-06-22 19:00:31,251 # Available timers: 2
2023-06-22 19:00:31,252 # 
2023-06-22 19:00:31,270 # Testing TIMER_0:
2023-06-22 19:00:31,306 # TIMER_0: initialization successful
2023-06-22 19:00:31,324 # TIMER_0: stopped
2023-06-22 19:00:31,356 # TIMER_0: set channel 0 to 5000
2023-06-22 19:00:31,390 # TIMER_0: set channel 1 to 10000
2023-06-22 19:00:31,408 # TIMER_0: starting
2023-06-22 19:00:31,482 # TIMER_0: channel 0 fired at SW count     1247 - init:     1247
2023-06-22 19:00:31,547 # TIMER_0: channel 1 fired at SW count     2488 - diff:     1241
2023-06-22 19:00:31,551 # 
2023-06-22 19:00:31,568 # Testing TIMER_1:
2023-06-22 19:00:31,605 # TIMER_1: initialization successful
2023-06-22 19:00:31,622 # TIMER_1: stopped
2023-06-22 19:00:31,655 # TIMER_1: set channel 0 to 5000
2023-06-22 19:00:31,688 # TIMER_1: set channel 1 to 10000
2023-06-22 19:00:31,707 # TIMER_1: starting
2023-06-22 19:00:31,780 # TIMER_1: channel 0 fired at SW count     1247 - init:     1247
2023-06-22 19:00:31,846 # TIMER_1: channel 1 fired at SW count     2488 - diff:     1241
2023-06-22 19:00:31,849 # 
2023-06-22 19:00:31,864 # TEST SUCCEEDED
2023-06-22 19:00:31,939 # { "threads": [{ "name": "idle", "stack_size": 128, "stack_used": 86 }]}
2023-06-22 19:00:32,015 # { "threads": [{ "name": "main", "stack_size": 640, "stack_used": 120 }]}
2023-06-22 19:00:34,259 # Exiting Pyterm
```
#### tests/periph/uart
```
tests/periph/uart$ BOARD=atmega1284p make -j64 clean all | grep '^  ' && BOARD=atmega1284p AVRDUDE_PROGRAMMER='usbasp -F' make flash 2>&1 | grep -- 'of flash' && BOARD=atmega1284p PORT=/dev/ttyACM0 make term
   text	   data	    bss	    dec	    hex	filename
  15918	   1044	   2000	  18962	   4a12	/home/hugues/github/cpu_atmega_common/RIOT/tests/periph/uart/bin/atmega1284p/tests_uart.elf
avrdude: 16962 bytes of flash written
avrdude: 16962 bytes of flash verified
/home/hugues/github/cpu_atmega_common/RIOT/dist/tools/pyterm/pyterm -p "/dev/ttyACM0" -b "9600"  
Twisted not available, please install it if you want to use pyterm's JSON capabilities
2023-06-22 19:01:25,894 # Connect to serial port /dev/ttyACM0
Welcome to pyterm!
Type '/exit' to exit.
2023-06-22 19:01:26,896 # 
2023-06-22 19:01:26,898 # main(): This is RIOT! (Version: 2020.07-devel-15351-gc5f75c-cpu/atmega_common)
2023-06-22 19:01:26,898 # 
2023-06-22 19:01:26,899 # Manual UART driver test application
2023-06-22 19:01:26,899 # ===================================
2023-06-22 19:01:26,900 # This application is intended for testing additional UART
2023-06-22 19:01:26,900 # interfaces, that might be defined for a board. The 'primary' UART
2023-06-22 19:01:26,901 # interface is tested implicitly, as it is running the shell...
2023-06-22 19:01:26,901 # 
2023-06-22 19:01:26,902 # When receiving data on one of the additional UART interfaces, this
2023-06-22 19:01:26,902 # data will be outputted via STDIO. So the easiest way to test an 
2023-06-22 19:01:26,903 # UART interface, is to simply connect the RX with the TX pin. Then 
2023-06-22 19:01:26,904 # you can send data on that interface and you should see the data 
2023-06-22 19:01:26,904 # being printed to STDOUT
2023-06-22 19:01:26,904 # 
2023-06-22 19:01:26,904 # NOTE: all strings need to be '\n' terminated!
2023-06-22 19:01:26,904 # 
2023-06-22 19:01:26,909 # UARD_DEV(0): test uart_poweron() and uart_poweroff()  ->  [OK]
2023-06-22 19:01:26,910 # 
2023-06-22 19:01:26,921 # UART INFO:
2023-06-22 19:01:26,958 # Available devices:               2
2023-06-22 19:01:27,004 # UART used for STDIO (the shell): UART_DEV(0)
2023-06-22 19:01:27,006 # 
init 1 9600
2023-06-22 19:01:50,464 # init 1 9600
send 1 ping
2023-06-22 19:04:12,912 # send 1 ping
2023-06-22 19:04:12,934 # UART_DEV(1) TX: ping
> 2023-06-22 19:04:12,973 # Success: UART_DEV(1) RX: [ping]\n
2023-06-22 19:04:23,894 # Exiting Pyterm
````

### Issues/PRs references

Depends on PR:
- #19751


Co-authored-by: Hugues Larrive <hlarrive@pm.me>
2023-07-04 22:12:54 +00:00
Hugues Larrive
6336672c08 cpu/atmega_common: checking features instead of CPU models 2023-07-04 23:17:21 +02:00
Marian Buschsieweke
87e3a611fe
cpu/atmega_common: make vera++ happy
Vera++ doesn't like `#error` preprocessor directives without a quoted
string afterwards (and also my syntax highlighter doesn't like this as
well). So let's add the quotes to have the tools not spooked out.
2023-06-29 22:27:59 +02:00
Marian Buschsieweke
e5d0f83696
cpu/atmega_common: store periph_timer prescalers in flash 2023-02-27 12:06:30 +01:00
Marian Buschsieweke
86fdbd7054
core/lib: Add macros/utils.h header
The macros CONCAT(), MIN(), and MAX() are defined over and over again in
RIOT's code base. This de-duplicates the code by moving the macros to a
common place.
2023-01-07 09:47:44 +01:00
Marian Buschsieweke
787884aa95
cpu/atmega_common/periph_timer: fix spurious IRQs 2022-11-25 14:46:16 +01:00
Benjamin Valentin
7abaae7bbd treewide: fix typos 2022-09-15 12:12:23 +02:00
Marian Buschsieweke
bae91c1660
Merge pull request #17723 from benpicco/periph_timer_periodic-set_stopped
drivers/periph/timer: add TIM_FLAG_SET_STOPPED flag
2022-05-03 12:06:37 +02:00
Marian Buschsieweke
04ab5a74f3
cpu/atmega_common: implement periph/gpio_ll{,_irq}
Co-authored-by: Gunar Schorcht <gunar@schorcht.net>
Co-authored-by: Alexandre Abadie <alexandre.abadie@inria.fr>
2022-05-02 14:44:55 +02:00
Benjamin Valentin
4540e490e3 cpu/atmega_common: timer: implement TIM_FLAG_SET_STOPPED 2022-04-28 13:27:59 +02:00
Niels Gandraß
41e8a57960
cpu/atmega_common: Remember CTC mode with timer_periodic 2021-12-13 12:08:38 +01:00
Gunar Schorcht
007e29ebb5 cpu/periph/i2c: update implementations to new I2C API
Make all `spi_acquire` implementations return `void` and add assertions to check for valid device identifier where missing.
2021-11-29 06:35:25 +01:00
Leandro Lanzieri
b8e2e3ce66
cpu/atmega_common: model Kconfig 2021-11-22 12:25:29 +01:00
Marian Buschsieweke
d91c9cdc5a
cpu/atmega_common: make cppcheck happy 2021-11-16 16:20:26 +01:00
Francisco
a1cbcc9ede
Merge pull request #15902 from maribu/spi-api-change-1
drivers/periph_spi: let spi_acquire return void
2021-09-02 08:50:56 +02:00
Marian Buschsieweke
f04b522601
cpu/periph_spi: update implementations to new API
Make all spi_acquire() implementations return `void` and add assertions to
check for valid parameters, where missing.
2021-09-01 21:38:40 +02:00
Jan Romann
4384795cb9
treewide: Remove excessive newlines 2021-08-13 19:50:38 +02:00
benpicco
619a444741
Merge pull request #16347 from benpicco/drivers/rtt_rtc-rtc_get_time_ms
drivers/rtt_rtc: implement rtc_get_time_ms()
2021-05-05 19:13:21 +02:00
Benjamin Valentin
7c1b5630d2 cpu/atmega_common: RTC: implement rtc_get_time_ms() 2021-05-04 23:17:05 +02:00
Benjamin Valentin
5ea85ca433 cpu/atmega_common: RTC: get rid of isr_flag 2021-05-04 23:14:35 +02:00
Benjamin Valentin
2d706b3295 cpu/atmega_common: RTC: fix off-by-one normalisation 2021-05-04 17:56:13 +02:00
Gerson Fernando Budke
1426e15679 cpu/avr8_common: Normalize method prefix name
Refactor atmega_ prefix to avr8_ prefix and update copyrights.

Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
2021-01-07 16:29:42 -03:00
Marian Buschsieweke
125c892c03
drivers/periph/timer: Use uint32_t for frequency
For all currently supported platforms `unsigned long` is 32 bit in width. But
better use `uint32_t` to be safe.
2020-10-30 22:02:12 +01:00
Bas Stottelaar
22243aec7a cpu/*: realign ENABLE_DEBUG 2020-10-23 00:46:26 +02:00
Bas Stottelaar
fb61443bbd cpu/*: remove unused assert.h include 2020-10-22 11:13:09 +02:00
Bas Stottelaar
ab6188cea3 cpu/*: add missing include of assert.h 2020-10-22 11:13:08 +02:00
Benjamin Valentin
96273b4df0 cpu/atmega_common: use TIMER_CHANNEL_NUMOF 2020-06-24 00:45:35 +02:00
benpicco
49aef1b678
Merge pull request #13902 from benpicco/periph_timer_periodic
periph/timer: add timer_set_periodic()
2020-05-28 18:03:32 +02:00
Benjamin Valentin
c000a77658 cpu/atmega_common: implement timer_set_periodic() 2020-05-28 17:37:42 +02:00
benpicco
2183fb9273
Merge pull request #14155 from maribu/atmega_timer_cleanup
cpu/atmega*: Clean up timer configs
2020-05-28 17:33:31 +02:00
Marian Buschsieweke
fb722b1be7
cpu/atmega_common/periph_timer: Fix style 2020-05-28 16:27:08 +02:00
Marian Buschsieweke
99bd1c318c
cpu/atmega_common/periph_timer: Add timer_set
Added a low level implementation of timer_set() that allows setting relative
timeouts as short as 0. This results in tests/periph_timer_short_relative_set
no passing.
2020-05-28 11:46:02 +02:00
Marian Buschsieweke
067a9c38ae
cpu/atmega_common: Fix race in periph_timer
As AVR is an 8 bit platform, special care needs to be taken when accessing 16
bit registers in an atomic fashion. This commit as just this care.
2020-05-18 21:22:31 +02:00
benpicco
cc44992abe
Merge pull request #12827 from maribu/atmega_pwm
cpu/atmega_common/periph/pwm: Minor fix & cleanup
2020-05-16 22:26:58 +02:00
Marian Buschsieweke
506288791d
cpu/atmega_common/periph/pwm: Minor fix & cleanup
- On pwm_poweron, the PWM resolution was not restored. (A custom resolution was
  only usable if, PWM channel 0 is not used. That configuration is not common,
  so this bug was likely never triggered)
- Disabled a work around to prevent flickering:
    - Previously, PWM was disconnected on level 0% and 100%
    - This increases the run time of `pwm_set()`
    - It prevents using the PWM for wave form generation via DDS, as the wave
      noticeably jumps when reaching 0% or 100%
- Slightly reduces memory requirements: 2 Bytes of RAM, 112 Bytes of ROM
    - Tested with avr-gcc 9.2.0 and LTO enabled
2020-05-16 20:43:31 +02:00
Marian Buschsieweke
4d1a5b9256
cpu/atmega_common: Drop legacy include
Drop `#include "irq.h"` in `cpu.h`, which was there for a legacy work around.
A bunch of missing includes of `irq.h` materialized due to this and were
fixed.
2020-05-15 11:24:28 +02:00
Benjamin Valentin
93d2068a9e cpu/atmega_common: Implement RTC based on TIM2
This implements a basic Real Time Clock based on TIM2.

As the timer is too fast and wraps around after just 8 bits, it is
not used directly. Instead TIM2 is responsible for providing a 1 Hz
tick by generating an alarm every second.

The current time data is kept in the `.noinit` section, so it will survive
a reboot, but the clock will not be updated while the bootloader runs, so
expect inaccuracies.
2020-03-03 16:26:26 +01:00
Gunar Schorcht
da244ffcaa cpu/atmega_common: fix compile problem with NDEBUG 2020-02-25 09:41:24 +01:00
Francisco
e2dc125fb3
Merge pull request #13308 from maribu/atmega_state_cleanup
cpu/atmega_common: Cleanup state flags
2020-02-10 17:37:24 +01:00
benpicco
24fb7a9aae
Merge pull request #12933 from maribu/atmega_pcint_cleanup
cpu/atmega_common/periph/gpio: Clean up PCINT support
2020-02-06 18:29:15 +01:00
Marian Buschsieweke
1879f58512
cpu/atmega_common: Cleanup state flags
- Use one byte of RAM to track both IRQ and UART TX state
- Fix incorrect use of volatile
2020-02-06 15:41:41 +01:00
Gunar Schorcht
668e05ed4f cpu/atmega: fix PWM compilation error with NDEBUG
When NDEBUG macro is defined during compilation, the assert macro produces empty code. The dev parameter is then unused.
2020-02-03 00:14:32 +01:00
Gunar Schorcht
2051167176 cpu/atmega: fix I2C compilation error with NDEBUG
When NDEBUG macro is defined during compilation, the assert macro produces empty code. The dev parameter is then unused.
2020-01-30 11:46:31 +01:00
76b9cfb677
Merge pull request #12973 from fjmolinas/pr_atmega_tx_isr
cpu/atmega_common/periph/uart: use TX_ISR to check TX end
2020-01-15 11:51:22 +01:00
Francisco Molina
70c6df9330 cpu/atmega_common/periph/uart: use TX_ISR to check TX end
For atmega boards a TX has not actually completed until UDRn is empty
as well as the Transmit Shift Register.

To avoid resetting an UART before a TX has completed we use the TXCn
flash and ISR to set a variables that indicates TX is ongoing. This
allows not reseting the UART while there are ongoing TX pending.

This fixes an issue where part of the last byte is not shifted out
of the TX shift register causing rubish on the first TX following an
uart_init.
2020-01-15 10:02:40 +01:00
Marian Buschsieweke
3c7d95de02
cpu/atmega_common/periph: adc_sample() now returns int32_t 2020-01-10 14:13:13 +01:00
Marian Buschsieweke
3ecd303ed0
cpu/atmega_common/periph: Clean up PCINT support
- Using a enum instead of _COUNTER is easier to read
    - _COUNTER is also a reserved name; so better not use it to avoid issues
- Split out the pcint code into a static inline function for increased
  readability
2019-12-12 11:38:43 +01:00
Marian Buschsieweke
a45066551b
cpu/atmega_common/periph: Fixed bug in PCINT
The bank index and the pin number are not necessarily identical. For all
PCINT banks except for bank 3 bank_idx was used therefore. It was likely
just forgotten to update that for bank 3 as well.
2019-12-12 11:33:19 +01:00