Feature/make pretty apps and ports (#80)
* Added pretty-apps and pretty-ports make targets * pretty-fied apps folder C files * Pretty-fied ports folder C and H files Co-authored-by: Steve Karg <skarg@users.sourceforge.net>
This commit is contained in:
Steve Karg
+90
-100
@@ -1,28 +1,28 @@
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/**************************************************************************
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*
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* Copyright (C) 2007 Steve Karg <skarg@users.sourceforge.net>
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* RS-485 initialization on AT91SAM7S inspired by Keil Eletronik serial.c
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*********************************************************************/
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*
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* Copyright (C) 2007 Steve Karg <skarg@users.sourceforge.net>
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* RS-485 initialization on AT91SAM7S inspired by Keil Eletronik serial.c
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*********************************************************************/
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/* The module handles sending data out the RS-485 port */
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/* and handles receiving data from the RS-485 port. */
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@@ -52,18 +52,17 @@ static int RS485_Baud = 38400;
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/* At 76800 baud, 40 bit times would be about 0.520 milliseconds */
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/* At 115200 baud, 40 bit times would be about 0.347 milliseconds */
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/* 40 bits is 4 octets including a start and stop bit with each octet */
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#define Tturnaround (40UL)
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#define Tturnaround (40UL)
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/* turnaround_time_milliseconds = (Tturnaround*1000UL)/RS485_Baud; */
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/****************************************************************************
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* DESCRIPTION: Initializes the RS485 hardware and variables, and starts in
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* receive mode.
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* RETURN: none
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* ALGORITHM: none
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* NOTES: none
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*****************************************************************************/
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void RS485_Initialize(
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void)
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* DESCRIPTION: Initializes the RS485 hardware and variables, and starts in
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* receive mode.
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* RETURN: none
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* ALGORITHM: none
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* NOTES: none
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*****************************************************************************/
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void RS485_Initialize(void)
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{
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unsigned int pcsr;
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/* Enable the USART0 clock in the Power Management Controller */
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@@ -81,17 +80,18 @@ void RS485_Initialize(
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/* enable the peripheral by disabling the pin in the PIO controller */
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*AT91C_PIOA_PDR = AT91C_PA5_RXD0 | AT91C_PA6_TXD0 | AT91C_PA7_RTS0;
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RS485_Interface->US_CR = AT91C_US_RSTRX | /* Reset Receiver */
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AT91C_US_RSTTX | /* Reset Transmitter */
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AT91C_US_RSTSTA | /* Clear status register */
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AT91C_US_RXDIS | /* Receiver Disable */
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RS485_Interface->US_CR = AT91C_US_RSTRX | /* Reset Receiver */
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AT91C_US_RSTTX | /* Reset Transmitter */
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AT91C_US_RSTSTA | /* Clear status register */
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AT91C_US_RXDIS | /* Receiver Disable */
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AT91C_US_TXDIS; /* Transmitter Disable */
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RS485_Interface->US_MR = AT91C_US_USMODE_RS485 | /* RS-485 Mode - RTS auto assert */
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AT91C_US_CLKS_CLOCK | /* Clock = MCK */
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AT91C_US_CHRL_8_BITS | /* 8-bit Data */
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AT91C_US_PAR_NONE | /* No Parity */
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AT91C_US_NBSTOP_1_BIT; /* 1 Stop Bit */
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RS485_Interface->US_MR =
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AT91C_US_USMODE_RS485 | /* RS-485 Mode - RTS auto assert */
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AT91C_US_CLKS_CLOCK | /* Clock = MCK */
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AT91C_US_CHRL_8_BITS | /* 8-bit Data */
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AT91C_US_PAR_NONE | /* No Parity */
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AT91C_US_NBSTOP_1_BIT; /* 1 Stop Bit */
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/* set the Time Guard to release RTS after x bit times */
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RS485_Interface->US_TTGR = 1;
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@@ -102,38 +102,34 @@ void RS485_Initialize(
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/* baud rate */
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RS485_Interface->US_BRGR = MCK / 16 / RS485_Baud;
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RS485_Interface->US_CR = AT91C_US_RXEN | /* Receiver Enable */
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AT91C_US_TXEN; /* Transmitter Enable */
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RS485_Interface->US_CR = AT91C_US_RXEN | /* Receiver Enable */
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AT91C_US_TXEN; /* Transmitter Enable */
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return;
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}
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void RS485_Cleanup(
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void)
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void RS485_Cleanup(void)
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{
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}
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/****************************************************************************
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* DESCRIPTION: Returns the baud rate that we are currently running at
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* RETURN: none
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* ALGORITHM: none
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* NOTES: none
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*****************************************************************************/
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uint32_t RS485_Get_Baud_Rate(
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void)
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* DESCRIPTION: Returns the baud rate that we are currently running at
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* RETURN: none
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* ALGORITHM: none
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* NOTES: none
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*****************************************************************************/
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uint32_t RS485_Get_Baud_Rate(void)
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{
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return RS485_Baud;
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}
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/****************************************************************************
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* DESCRIPTION: Sets the baud rate for the chip USART
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* RETURN: none
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* ALGORITHM: none
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* NOTES: none
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*****************************************************************************/
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bool RS485_Set_Baud_Rate(
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uint32_t baud)
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* DESCRIPTION: Sets the baud rate for the chip USART
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* RETURN: none
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* ALGORITHM: none
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* NOTES: none
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*****************************************************************************/
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bool RS485_Set_Baud_Rate(uint32_t baud)
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{
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bool valid = true;
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@@ -157,13 +153,12 @@ bool RS485_Set_Baud_Rate(
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}
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/****************************************************************************
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* DESCRIPTION: Waits on the SilenceTimer for 40 bits.
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* RETURN: none
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* ALGORITHM: none
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* NOTES: none
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*****************************************************************************/
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void RS485_Turnaround_Delay(
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void)
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* DESCRIPTION: Waits on the SilenceTimer for 40 bits.
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* RETURN: none
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* ALGORITHM: none
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* NOTES: none
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*****************************************************************************/
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void RS485_Turnaround_Delay(void)
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{
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uint16_t turnaround_time;
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@@ -177,27 +172,25 @@ void RS485_Turnaround_Delay(
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}
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/****************************************************************************
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* DESCRIPTION: Enable or disable the transmitter
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* RETURN: none
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* ALGORITHM: none
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* NOTES: The Atmel ARM7 has an automatic enable/disable in RS485 mode.
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*****************************************************************************/
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void RS485_Transmitter_Enable(
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bool enable)
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* DESCRIPTION: Enable or disable the transmitter
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* RETURN: none
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* ALGORITHM: none
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* NOTES: The Atmel ARM7 has an automatic enable/disable in RS485 mode.
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*****************************************************************************/
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void RS485_Transmitter_Enable(bool enable)
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{
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(void) enable;
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(void)enable;
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}
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/****************************************************************************
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* DESCRIPTION: Send some data and wait until it is sent
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* RETURN: none
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* ALGORITHM: none
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* NOTES: none
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*****************************************************************************/
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void RS485_Send_Data(
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uint8_t * buffer, /* data to send */
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* DESCRIPTION: Send some data and wait until it is sent
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* RETURN: none
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* ALGORITHM: none
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* NOTES: none
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*****************************************************************************/
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void RS485_Send_Data(uint8_t *buffer, /* data to send */
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uint16_t nbytes)
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{ /* number of bytes of data */
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{ /* number of bytes of data */
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/* LED on send */
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volatile AT91PS_PIO pPIO = AT91C_BASE_PIOA;
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/* LED ON */
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@@ -219,13 +212,12 @@ void RS485_Send_Data(
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}
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/****************************************************************************
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* DESCRIPTION: Return true if a framing or overrun error is present
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* RETURN: true if error
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* ALGORITHM: none
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* NOTES: Clears any error flags.
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*****************************************************************************/
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bool RS485_ReceiveError(
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void)
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* DESCRIPTION: Return true if a framing or overrun error is present
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* RETURN: true if error
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* ALGORITHM: none
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* NOTES: Clears any error flags.
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*****************************************************************************/
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bool RS485_ReceiveError(void)
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{
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bool ReceiveError = false;
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/* LED on send */
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@@ -244,13 +236,12 @@ bool RS485_ReceiveError(
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}
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/****************************************************************************
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* DESCRIPTION: Return true if data is available
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* RETURN: true if data is available, with the data in the parameter set
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* ALGORITHM: none
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* NOTES: none
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*****************************************************************************/
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bool RS485_DataAvailable(
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uint8_t * DataRegister)
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* DESCRIPTION: Return true if data is available
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* RETURN: true if data is available, with the data in the parameter set
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* ALGORITHM: none
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* NOTES: none
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*****************************************************************************/
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bool RS485_DataAvailable(uint8_t *DataRegister)
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{
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bool DataAvailable = false;
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/* LED on send */
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@@ -270,8 +261,7 @@ bool RS485_DataAvailable(
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}
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#ifdef TEST_RS485
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int main(
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void)
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int main(void)
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{
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unsigned i = 0;
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uint8_t DataRegister;
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