Serial Interrupt Library with mbed RTOS for multi-threading
Dependencies: buffered-serial1 mbed-rtos mbed
Fork of Serial_interrupts by
main.cpp@2:3d959c9fc9d7, 2012-12-10 (annotated)
- Committer:
- tylerjw
- Date:
- Mon Dec 10 22:33:57 2012 +0000
- Revision:
- 2:3d959c9fc9d7
- Parent:
- 1:2f1e54d137c7
- Child:
- 4:b6e538868312
working with rtos included
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
4180_1 | 0:023c5cda6102 | 1 | #include "mbed.h" |
tylerjw | 1:2f1e54d137c7 | 2 | #include "buffered_serial.h" |
4180_1 | 0:023c5cda6102 | 3 | // Serial TX & RX interrupt loopback test using formatted IO - sprintf and sscanf |
4180_1 | 0:023c5cda6102 | 4 | // Connect TX to RX (p9 to p10) |
4180_1 | 0:023c5cda6102 | 5 | // or can also use USB and type back in the number printed out in a terminal window |
4180_1 | 0:023c5cda6102 | 6 | // Sends out ASCII numbers in a loop and reads them back |
4180_1 | 0:023c5cda6102 | 7 | // If not the same number LED4 goes on |
4180_1 | 0:023c5cda6102 | 8 | // LED1 and LED2 indicate RX and TX interrupt routine activity |
4180_1 | 0:023c5cda6102 | 9 | // LED3 changing indicate main loop running |
4180_1 | 0:023c5cda6102 | 10 | |
tylerjw | 2:3d959c9fc9d7 | 11 | BufferedSerial device(p13,p14); // tx, rx |
4180_1 | 0:023c5cda6102 | 12 | |
4180_1 | 0:023c5cda6102 | 13 | DigitalOut led3(LED3); |
4180_1 | 0:023c5cda6102 | 14 | DigitalOut led4(LED4); |
4180_1 | 0:023c5cda6102 | 15 | |
4180_1 | 0:023c5cda6102 | 16 | // Line buffers for sprintf and sscanf |
4180_1 | 0:023c5cda6102 | 17 | char tx_line[80]; |
4180_1 | 0:023c5cda6102 | 18 | char rx_line[80]; |
4180_1 | 0:023c5cda6102 | 19 | |
4180_1 | 0:023c5cda6102 | 20 | // main test program |
tylerjw | 1:2f1e54d137c7 | 21 | int main() |
tylerjw | 1:2f1e54d137c7 | 22 | { |
4180_1 | 0:023c5cda6102 | 23 | int i=0; |
4180_1 | 0:023c5cda6102 | 24 | int rx_i=0; |
4180_1 | 0:023c5cda6102 | 25 | device.baud(9600); |
tylerjw | 2:3d959c9fc9d7 | 26 | |
4180_1 | 0:023c5cda6102 | 27 | // Formatted IO test using send and receive serial interrupts |
4180_1 | 0:023c5cda6102 | 28 | // with sprintf and sscanf |
4180_1 | 0:023c5cda6102 | 29 | while (1) { |
4180_1 | 0:023c5cda6102 | 30 | // Loop to generate different test values - send value in hex, decimal, and octal and then read back |
4180_1 | 0:023c5cda6102 | 31 | for (i=0; i<0xFFFF; i++) { |
4180_1 | 0:023c5cda6102 | 32 | led3=1; |
4180_1 | 0:023c5cda6102 | 33 | // Print ASCII number to tx line buffer in hex |
4180_1 | 0:023c5cda6102 | 34 | sprintf(tx_line,"%x\r\n",i); |
4180_1 | 0:023c5cda6102 | 35 | // Copy tx line buffer to large tx buffer for tx interrupt routine |
tylerjw | 1:2f1e54d137c7 | 36 | device.send_line(tx_line); |
4180_1 | 0:023c5cda6102 | 37 | // Print ASCII number to tx line buffer in decimal |
4180_1 | 0:023c5cda6102 | 38 | sprintf(tx_line,"%d\r\n",i); |
4180_1 | 0:023c5cda6102 | 39 | // Copy tx line buffer to large tx buffer for tx interrupt routine |
tylerjw | 1:2f1e54d137c7 | 40 | device.send_line(tx_line); |
4180_1 | 0:023c5cda6102 | 41 | // Print ASCII number to tx line buffer in octal |
4180_1 | 0:023c5cda6102 | 42 | sprintf(tx_line,"%o\r\n",i); |
4180_1 | 0:023c5cda6102 | 43 | // Copy tx line buffer to large tx buffer for tx interrupt routine |
tylerjw | 1:2f1e54d137c7 | 44 | device.send_line(tx_line); |
4180_1 | 0:023c5cda6102 | 45 | led3=0; |
4180_1 | 0:023c5cda6102 | 46 | // Read a line from the large rx buffer from rx interrupt routine |
tylerjw | 1:2f1e54d137c7 | 47 | device.read_line(rx_line); |
4180_1 | 0:023c5cda6102 | 48 | // Read ASCII number from rx line buffer |
4180_1 | 0:023c5cda6102 | 49 | sscanf(rx_line,"%x",&rx_i); |
4180_1 | 0:023c5cda6102 | 50 | // Check that numbers are the same |
4180_1 | 0:023c5cda6102 | 51 | if (i != rx_i) led4=1; |
4180_1 | 0:023c5cda6102 | 52 | // Read a line from the large rx buffer from rx interrupt routine |
tylerjw | 1:2f1e54d137c7 | 53 | device.read_line(rx_line); |
4180_1 | 0:023c5cda6102 | 54 | // Read ASCII number from rx line buffer |
4180_1 | 0:023c5cda6102 | 55 | sscanf(rx_line,"%d",&rx_i); |
4180_1 | 0:023c5cda6102 | 56 | // Check that numbers are the same |
4180_1 | 0:023c5cda6102 | 57 | if (i != rx_i) led4=1; |
4180_1 | 0:023c5cda6102 | 58 | // Read a line from the large rx buffer from rx interrupt routine |
tylerjw | 1:2f1e54d137c7 | 59 | device.read_line(rx_line); |
4180_1 | 0:023c5cda6102 | 60 | // Read ASCII number from rx line buffer |
4180_1 | 0:023c5cda6102 | 61 | sscanf(rx_line,"%o",&rx_i); |
4180_1 | 0:023c5cda6102 | 62 | // Check that numbers are the same |
4180_1 | 0:023c5cda6102 | 63 | if (i != rx_i) led4=1; |
4180_1 | 0:023c5cda6102 | 64 | } |
4180_1 | 0:023c5cda6102 | 65 | } |
4180_1 | 0:023c5cda6102 | 66 | } |
4180_1 | 0:023c5cda6102 | 67 |