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| author | Karel Kočí <cynerd@email.cz> | 2015-10-11 14:13:02 +0200 |
|---|---|---|
| committer | Karel Kočí <cynerd@email.cz> | 2015-10-11 14:16:52 +0200 |
| commit | 62c4883af719f5bacd197257387a0071c625e469 (patch) | |
| tree | c8f37c013c8263f818375d5b45606c10584a7646 /examples/usartecho | |
| parent | 861ed124caf5a403748c948b88afa4ef89cc1787 (diff) | |
| download | avr-ioe-62c4883af719f5bacd197257387a0071c625e469.tar.gz avr-ioe-62c4883af719f5bacd197257387a0071c625e469.tar.bz2 avr-ioe-62c4883af719f5bacd197257387a0071c625e469.zip | |
Replace usart initialization parameters with configuration
Baudrate and other configurations are now defined in compile time by
preprocessor flags. This simplifies output code.
Diffstat (limited to 'examples/usartecho')
| -rw-r--r-- | examples/usartecho/echo.c | 9 | ||||
| -rw-r--r-- | examples/usartecho/makefile | 8 |
2 files changed, 12 insertions, 5 deletions
diff --git a/examples/usartecho/echo.c b/examples/usartecho/echo.c index 4ba9364..12b88f6 100644 --- a/examples/usartecho/echo.c +++ b/examples/usartecho/echo.c @@ -4,16 +4,19 @@ #include "../../usart.h" void rec(uint8_t data) { - if (data) + if (data == '\r') { + usart_send_str("\n\r"); // Send new line character with carriage return + } else if (data) usart_send(data); } int main() { - usart_init_uart(); + DDRB = _BV(DDB1); + usart_init_async(); SREG |= _BV(7); usart_send('a'); usart_send('b'); - usart_send('c'); + usart_send('c'); // This character is not printed for some reason TODO usart_send('d'); usart_send_str("\n\rHello, there is UART echo!\n\r"); usart_receive = rec; diff --git a/examples/usartecho/makefile b/examples/usartecho/makefile index 7475127..48a713c 100644 --- a/examples/usartecho/makefile +++ b/examples/usartecho/makefile @@ -5,10 +5,14 @@ F_CPU = 16000000L IOE_PREFIX = ../.. IOE_CFLAGS = -Os -ffunction-sections -fdata-sections -fshort-enums -Wall \ -DCONFIG_IOE_USART_OUTBUFFER_SIZE=64 \ - -DCONFIG_IOE_USART_OUTBUFFER_MODE=0 + -DCONFIG_IOE_USART_OUTBUFFER_MODE=0 \ + -DCONFIG_IOE_USART_BAUD=115200 \ + -DCONFIG_IOE_USART_PARITY=USART_PARITY_NONE \ + -DCONFIG_IOE_USART_STOPBIT=USART_STOPBIT_SINGLE \ + -DCONFIG_IOE_USART_DATABITS=8 all: usart.hex - @echo Flash usart.hex to chip + @echo Now you can flash usart.hex to your chip. clean: ioeclean $(RM) echo.o |