This example show the mode to use UASRT1 and USART2 on NUCLEO-L152RE. USART2 it is used for debug (connected to the PC) using TeraTerm. USART1 it is used for show the way to use another USART.
main.cpp@1:676a504fc5e7, 2014-06-28 (annotated)
- Committer:
- emcu
- Date:
- Sat Jun 28 18:17:43 2014 +0000
- Revision:
- 1:676a504fc5e7
- Parent:
- 0:fb2930dc304c
28-06-2014; Change SERIAL1_TX from D8 (PA_9) to D10 (PB_6)
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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emcu | 0:fb2930dc304c | 1 | // |
emcu | 0:fb2930dc304c | 2 | // U2andU1onL152 |
emcu | 0:fb2930dc304c | 3 | // |
emcu | 0:fb2930dc304c | 4 | // From: www.emcu.it |
emcu | 0:fb2930dc304c | 5 | // Date: 24-06-2014 |
emcu | 0:fb2930dc304c | 6 | // Tested on NUCLEO_L152RE |
emcu | 0:fb2930dc304c | 7 | // for more info see here: http://www.emcu.it/NUCLEOevaBoards/NUCLEOevaBoards.html#Tutorial |
emcu | 0:fb2930dc304c | 8 | // |
emcu | 0:fb2930dc304c | 9 | /* |
emcu | 0:fb2930dc304c | 10 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
emcu | 0:fb2930dc304c | 11 | * of this software and associated documentation files (the "Software"), to deal |
emcu | 0:fb2930dc304c | 12 | * in the Software without restriction, including without limitation the rights |
emcu | 0:fb2930dc304c | 13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
emcu | 0:fb2930dc304c | 14 | * copies of the Software, and to permit persons to whom the Software is |
emcu | 0:fb2930dc304c | 15 | * furnished to do so, subject to the following conditions: |
emcu | 0:fb2930dc304c | 16 | * |
emcu | 0:fb2930dc304c | 17 | * The above copyright notice and this permission notice shall be included in |
emcu | 0:fb2930dc304c | 18 | * all copies or substantial portions of the Software. |
emcu | 0:fb2930dc304c | 19 | * |
emcu | 0:fb2930dc304c | 20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
emcu | 0:fb2930dc304c | 21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
emcu | 0:fb2930dc304c | 22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
emcu | 0:fb2930dc304c | 23 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
emcu | 0:fb2930dc304c | 24 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
emcu | 0:fb2930dc304c | 25 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
emcu | 0:fb2930dc304c | 26 | * THE SOFTWARE. |
emcu | 0:fb2930dc304c | 27 | |
emcu | 0:fb2930dc304c | 28 | |
emcu | 0:fb2930dc304c | 29 | ++++++++++++++++++++++ CONFIGURATIONS +++++++++++++++++++++++++++++++ |
emcu | 0:fb2930dc304c | 30 | |
emcu | 0:fb2930dc304c | 31 | USART2 it is used for debug (connected to the PC) using TeraTerm |
emcu | 0:fb2930dc304c | 32 | USART1 it is used for show the way to use another USART |
emcu | 0:fb2930dc304c | 33 | Both USART are not used in Interrupt |
emcu | 0:fb2930dc304c | 34 | |
emcu | 0:fb2930dc304c | 35 | The USART parameters are: |
emcu | 0:fb2930dc304c | 36 | Baud Rate: 9600 |
emcu | 0:fb2930dc304c | 37 | Data: 8 |
emcu | 0:fb2930dc304c | 38 | Parity: NONE |
emcu | 0:fb2930dc304c | 39 | Stop: 1 |
emcu | 0:fb2930dc304c | 40 | Flow Control: NONE |
emcu | 0:fb2930dc304c | 41 | |
emcu | 0:fb2930dc304c | 42 | |
emcu | 0:fb2930dc304c | 43 | ++++++++++++++++++++++ How to use this example ++++++++++++++++++++++ |
emcu | 0:fb2930dc304c | 44 | |
emcu | 1:676a504fc5e7 | 45 | For test this example connect with a jumper D2 (SERIAL1_RX) to D10 (SERIAL1_TX). |
emcu | 0:fb2930dc304c | 46 | |
emcu | 0:fb2930dc304c | 47 | Press and release the Blue Button and you must see the green LED ON for 1 second. |
emcu | 0:fb2930dc304c | 48 | At the same time some message are displayed via USB Virtual COM on your PC. |
emcu | 0:fb2930dc304c | 49 | |
emcu | 0:fb2930dc304c | 50 | Similar, if you press E on your Tera Term (PC) you must see the green LED ON for 1 second. |
emcu | 0:fb2930dc304c | 51 | |
emcu | 0:fb2930dc304c | 52 | |
emcu | 1:676a504fc5e7 | 53 | ++++++++++++++++++++++ Changes |
emcu | 1:676a504fc5e7 | 54 | |
emcu | 1:676a504fc5e7 | 55 | 28-06-2014 |
emcu | 1:676a504fc5e7 | 56 | Change SERIAL1_TX from D8 (PA_9) to D10 (PB_6) |
emcu | 1:676a504fc5e7 | 57 | |
emcu | 0:fb2930dc304c | 58 | |
emcu | 0:fb2930dc304c | 59 | */ |
emcu | 0:fb2930dc304c | 60 | |
emcu | 0:fb2930dc304c | 61 | |
emcu | 0:fb2930dc304c | 62 | |
emcu | 0:fb2930dc304c | 63 | #include "mbed.h" |
emcu | 0:fb2930dc304c | 64 | |
emcu | 0:fb2930dc304c | 65 | Serial pc(SERIAL_TX, SERIAL_RX); // This is USART2 tx, rx |
emcu | 1:676a504fc5e7 | 66 | Serial Serial1(PB_6, PA_10); // This is USART1 tx, rx |
emcu | 0:fb2930dc304c | 67 | DigitalOut myled(LED1); // This LED is on NUCLEO-L152RE |
emcu | 0:fb2930dc304c | 68 | DigitalIn BlueButton(USER_BUTTON); // This is Blue-Button and is on NUCLEO-L153RE |
emcu | 0:fb2930dc304c | 69 | |
emcu | 0:fb2930dc304c | 70 | #define Pressed 0 |
emcu | 0:fb2930dc304c | 71 | #define NotPressed 1 |
emcu | 0:fb2930dc304c | 72 | |
emcu | 0:fb2930dc304c | 73 | int Car='\0'; |
emcu | 0:fb2930dc304c | 74 | int CarSerial1='\0'; |
emcu | 0:fb2930dc304c | 75 | int n=0; |
emcu | 0:fb2930dc304c | 76 | |
emcu | 0:fb2930dc304c | 77 | int main() { |
emcu | 0:fb2930dc304c | 78 | myled = 0; |
emcu | 0:fb2930dc304c | 79 | |
emcu | 0:fb2930dc304c | 80 | pc.printf("\n\r\n\r START MAIN \n\r"); |
emcu | 0:fb2930dc304c | 81 | |
emcu | 0:fb2930dc304c | 82 | while(1) |
emcu | 0:fb2930dc304c | 83 | { |
emcu | 0:fb2930dc304c | 84 | |
emcu | 0:fb2930dc304c | 85 | // Test the Blue Button |
emcu | 0:fb2930dc304c | 86 | if (BlueButton == Pressed) |
emcu | 0:fb2930dc304c | 87 | { |
emcu | 0:fb2930dc304c | 88 | while(BlueButton == Pressed) |
emcu | 0:fb2930dc304c | 89 | { |
emcu | 0:fb2930dc304c | 90 | if (n == 0) |
emcu | 0:fb2930dc304c | 91 | pc.printf("Please release the BLUE Button\n\r"); |
emcu | 0:fb2930dc304c | 92 | n++; |
emcu | 0:fb2930dc304c | 93 | } |
emcu | 0:fb2930dc304c | 94 | n = 0; |
emcu | 0:fb2930dc304c | 95 | pc.printf("Send char. E to USART1\n\r"); |
emcu | 0:fb2930dc304c | 96 | Serial1.putc('E'); // Send char. E to USART1 |
emcu | 0:fb2930dc304c | 97 | } |
emcu | 0:fb2930dc304c | 98 | |
emcu | 0:fb2930dc304c | 99 | // Test the char. received from USART2 tha is USB Virtual COM |
emcu | 0:fb2930dc304c | 100 | if(pc.readable()) |
emcu | 0:fb2930dc304c | 101 | { |
emcu | 0:fb2930dc304c | 102 | Car = pc.getc(); |
emcu | 0:fb2930dc304c | 103 | if (Car == 'E') |
emcu | 0:fb2930dc304c | 104 | { |
emcu | 0:fb2930dc304c | 105 | pc.printf("Send char. E (received from USB_VirtualCOM) to USART1\n\r"); |
emcu | 0:fb2930dc304c | 106 | Serial1.putc('E'); // Send char. E to USART1 |
emcu | 0:fb2930dc304c | 107 | } |
emcu | 0:fb2930dc304c | 108 | Car = '\0'; |
emcu | 0:fb2930dc304c | 109 | } |
emcu | 0:fb2930dc304c | 110 | |
emcu | 0:fb2930dc304c | 111 | // Test the char. received from USART1 |
emcu | 0:fb2930dc304c | 112 | if (Serial1.readable()) |
emcu | 0:fb2930dc304c | 113 | { |
emcu | 0:fb2930dc304c | 114 | CarSerial1 = Serial1.getc(); // Get char. from USART1 |
emcu | 0:fb2930dc304c | 115 | if (CarSerial1 == 'E') |
emcu | 0:fb2930dc304c | 116 | { |
emcu | 0:fb2930dc304c | 117 | pc.printf("RX char. E from USART1\n\r"); |
emcu | 0:fb2930dc304c | 118 | myled = 1; |
emcu | 0:fb2930dc304c | 119 | wait(1); |
emcu | 0:fb2930dc304c | 120 | } |
emcu | 0:fb2930dc304c | 121 | myled = 0; |
emcu | 0:fb2930dc304c | 122 | CarSerial1 = '\0'; |
emcu | 0:fb2930dc304c | 123 | } |
emcu | 0:fb2930dc304c | 124 | |
emcu | 0:fb2930dc304c | 125 | } |
emcu | 0:fb2930dc304c | 126 | } |