text chat demo application for sx1232
summary
This is a demo-example application of using SX1232 driver.
It provides text console over SerialPC.
main.cpp@0:5b0e70b88863, 2013-05-02 (annotated)
- Committer:
- dudmuck
- Date:
- Thu May 02 01:25:37 2013 +0000
- Revision:
- 0:5b0e70b88863
- Child:
- 1:e642eed3eac4
text chat demo application for sx1232
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
dudmuck | 0:5b0e70b88863 | 1 | #include "sx1232.h" |
dudmuck | 0:5b0e70b88863 | 2 | |
dudmuck | 0:5b0e70b88863 | 3 | /* Chat application over text console via SerialPC. |
dudmuck | 0:5b0e70b88863 | 4 | * Tested with teraterm. |
dudmuck | 0:5b0e70b88863 | 5 | */ |
dudmuck | 0:5b0e70b88863 | 6 | |
dudmuck | 0:5b0e70b88863 | 7 | // pins for freescale freedom: |
dudmuck | 0:5b0e70b88863 | 8 | // mosi, miso, sclk, cs, rst, dio0 |
dudmuck | 0:5b0e70b88863 | 9 | SX1232 radio(PTD2, PTD3, PTD1, PTD0, PTD5, PTA13); |
dudmuck | 0:5b0e70b88863 | 10 | |
dudmuck | 0:5b0e70b88863 | 11 | Serial pc(USBTX, USBRX); |
dudmuck | 0:5b0e70b88863 | 12 | |
dudmuck | 0:5b0e70b88863 | 13 | void radio_init_user() |
dudmuck | 0:5b0e70b88863 | 14 | { |
dudmuck | 0:5b0e70b88863 | 15 | // default narrow-band settings |
dudmuck | 0:5b0e70b88863 | 16 | radio.set_bitrate(4800); |
dudmuck | 0:5b0e70b88863 | 17 | radio.set_tx_fdev_hz(5000); // tx deviation |
dudmuck | 0:5b0e70b88863 | 18 | radio.set_rx_dcc_bw_hz(0, 10000); // rx bandwidth |
dudmuck | 0:5b0e70b88863 | 19 | radio.enable_afc(1); |
dudmuck | 0:5b0e70b88863 | 20 | |
dudmuck | 0:5b0e70b88863 | 21 | // pick your own frequency within your regulatory limits. |
dudmuck | 0:5b0e70b88863 | 22 | radio.set_frf_MHz(914.1); |
dudmuck | 0:5b0e70b88863 | 23 | |
dudmuck | 0:5b0e70b88863 | 24 | /* radio.RegPaConfig.bits.OutputPower = X |
dudmuck | 0:5b0e70b88863 | 25 | * radio.RegPaConfig.bits.PaSelect = 1 PA_BOOST |
dudmuck | 0:5b0e70b88863 | 26 | * radio.write_reg(REG_PACONFIG, RegPaConfig.octet); */ |
dudmuck | 0:5b0e70b88863 | 27 | } |
dudmuck | 0:5b0e70b88863 | 28 | |
dudmuck | 0:5b0e70b88863 | 29 | void |
dudmuck | 0:5b0e70b88863 | 30 | service_radio() |
dudmuck | 0:5b0e70b88863 | 31 | { |
dudmuck | 0:5b0e70b88863 | 32 | int len; |
dudmuck | 0:5b0e70b88863 | 33 | |
dudmuck | 0:5b0e70b88863 | 34 | switch (radio.service_action) { |
dudmuck | 0:5b0e70b88863 | 35 | case SERVICE_READ_FIFO: // this occurs when CrcOk in DIO1 pin from radio |
dudmuck | 0:5b0e70b88863 | 36 | radio.service_action = SERVICE_NONE; |
dudmuck | 0:5b0e70b88863 | 37 | len = radio.read_fifo(); |
dudmuck | 0:5b0e70b88863 | 38 | radio.rx_buf[len] = 0; // null terminate for printing text |
dudmuck | 0:5b0e70b88863 | 39 | printf("%s\r\n", radio.rx_buf); |
dudmuck | 0:5b0e70b88863 | 40 | break; |
dudmuck | 0:5b0e70b88863 | 41 | case SERVICE_ERROR: |
dudmuck | 0:5b0e70b88863 | 42 | radio.service_action = SERVICE_NONE; |
dudmuck | 0:5b0e70b88863 | 43 | printf("dio0_callback() %d\r\n", radio.RegDioMapping1.bits.Dio0Mapping); |
dudmuck | 0:5b0e70b88863 | 44 | break; |
dudmuck | 0:5b0e70b88863 | 45 | case SERVICE_TX_DONE: |
dudmuck | 0:5b0e70b88863 | 46 | radio.service_action = SERVICE_NONE; |
dudmuck | 0:5b0e70b88863 | 47 | radio.start_rx(); |
dudmuck | 0:5b0e70b88863 | 48 | break; |
dudmuck | 0:5b0e70b88863 | 49 | default: // nothing necessary to do |
dudmuck | 0:5b0e70b88863 | 50 | break; |
dudmuck | 0:5b0e70b88863 | 51 | } // ...switch (radio.service_action) |
dudmuck | 0:5b0e70b88863 | 52 | } |
dudmuck | 0:5b0e70b88863 | 53 | |
dudmuck | 0:5b0e70b88863 | 54 | int main() |
dudmuck | 0:5b0e70b88863 | 55 | { |
dudmuck | 0:5b0e70b88863 | 56 | int txbuf_idx = 0; |
dudmuck | 0:5b0e70b88863 | 57 | const int maxmsg = sizeof(radio.tx_buf)-1; |
dudmuck | 0:5b0e70b88863 | 58 | |
dudmuck | 0:5b0e70b88863 | 59 | radio_init_user(); |
dudmuck | 0:5b0e70b88863 | 60 | radio.start_rx(); |
dudmuck | 0:5b0e70b88863 | 61 | |
dudmuck | 0:5b0e70b88863 | 62 | printf("\r\nsx1232_chat\r\n"); |
dudmuck | 0:5b0e70b88863 | 63 | while (1) { |
dudmuck | 0:5b0e70b88863 | 64 | if (pc.readable()) { |
dudmuck | 0:5b0e70b88863 | 65 | char c = pc.getc(); |
dudmuck | 0:5b0e70b88863 | 66 | if (c == 8 && txbuf_idx > 0) { // backspace |
dudmuck | 0:5b0e70b88863 | 67 | pc.putc(8); |
dudmuck | 0:5b0e70b88863 | 68 | pc.putc(' '); |
dudmuck | 0:5b0e70b88863 | 69 | pc.putc(8); |
dudmuck | 0:5b0e70b88863 | 70 | txbuf_idx--; |
dudmuck | 0:5b0e70b88863 | 71 | } else if (c == '\r') { |
dudmuck | 0:5b0e70b88863 | 72 | //radio.tx_buf[txbuf_idx] = 0; // null terminate (if printing) |
dudmuck | 0:5b0e70b88863 | 73 | radio.start_tx(txbuf_idx); |
dudmuck | 0:5b0e70b88863 | 74 | printf("\r\n"); |
dudmuck | 0:5b0e70b88863 | 75 | txbuf_idx = 0; |
dudmuck | 0:5b0e70b88863 | 76 | } else if (txbuf_idx < maxmsg) { |
dudmuck | 0:5b0e70b88863 | 77 | radio.tx_buf[txbuf_idx++] = c; |
dudmuck | 0:5b0e70b88863 | 78 | pc.putc(c); |
dudmuck | 0:5b0e70b88863 | 79 | } |
dudmuck | 0:5b0e70b88863 | 80 | } else |
dudmuck | 0:5b0e70b88863 | 81 | service_radio(); |
dudmuck | 0:5b0e70b88863 | 82 | } // ...while(1) |
dudmuck | 0:5b0e70b88863 | 83 | |
dudmuck | 0:5b0e70b88863 | 84 | } |