Kenji Arai
TYBLE16 serial communication (UART) for both "Central" and "Peripheral".
Fork of
TYBLE16_BME280_data_sender
by 
Kenji Arai
Please refer following page.
/users/kenjiArai/notebook/tyble16-module--uart-communication-between-central/#
Revision 2:f44ef892b2b2, committed 2017-11-19
- Comitter:
- kenjiArai
- Date:
- Sun Nov 19 09:46:27 2017 +0000
- Parent:
- 1:f2982d4f4037
- Commit message:
- TYBLE16 serial communication (UART) for both "Central" and "Peripheral".
Changed in this revision
--- a/BME280.lib Sun Oct 29 23:25:26 2017 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -https://mbed.org/users/MACRUM/code/BME280/#c1f1647004c4
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/RingBuffer.lib Sun Nov 19 09:46:27 2017 +0000 @@ -0,0 +1,1 @@ +http://os.mbed.com/users/ykuroda/code/RingBuffer/#ea6d02ba96ae
--- a/main.cpp Sun Oct 29 23:25:26 2017 +0000
+++ b/main.cpp Sun Nov 19 09:46:27 2017 +0000
@@ -12,141 +12,96 @@
* http://www.page.sannet.ne.jp/kenjia/index.html
* http://mbed.org/users/kenjiArai/
* Created: October 27th, 2017
- * Revised: October 30th, 2017
+ * Revised: November 19th, 2017
*/
/*
Tested condition
- mbed-os-5.6.3 & mbed Rev.154
- Nucleo-F446RE TYBLE16 /also F411RE & F042K6(only mbed & pin assign differ)
- PA_9 pin5 / P0.03(UART_RX)
- PA_10 pin6 / P0.01(UART_TX)
- pin7 / P0.02(UART_CTS) connected to pin8 / P0.00(UART_RTS)
+ mbed-os-5.6.4 & mbed Rev.157(release 155?)
+ Nucleo-F446RE TYBLE16 /also F411RE
+ PA_9 (D8) pin5 / P0.03(UART_RX)
+ PA_10(D2) pin6 / P0.01(UART_TX)
+ pin7 / P0.02(UART_CTS) connected to pin8 / P0.00(UART_RTS)
+ PB_3 (D3) pin15 / P0.23(MODE) Mode indication
+3.3v pin14 / +V
GND pin13 / GND
- Nucleo-F446RE BME280
- PB_9(SDA) SDI
- PB_8(SCL) SDK
- SDO = GND, CSB = +3.3V
- Communcation with iPhone 7 iOS 11.0.3
- TYs Terminal App
- https://itunes.apple.com/jp/app/tys-terminal-app/id1184640145?mt=8
+ */
+
+/*
+ --- HOW TO ESTABLISH CENTRAL AND PERIPHERAL UART ---
+ 1) Prepare one peripheral module/TYBLE16
+ 2) Prepare another TYBLE16 module which was programed as "Central mode"
+ Please refer "TYBLE16_set_Central_or_ Peripheral" program
+ 3) Programing "TYBLE16_Uart_Central_and_Peripheral" into Mbed boards
+ (same program into both "Central" and "Peripheral" Mbed board)
+ 4) If you turn on both the "Central" and "Peripheral" power at the same time,
+ the connection is automatically started
*/
// Include --------------------------------------------------------------------
-#include "mbed.h"
-#include "BME280.h"
+#include "mbed.h"
+#include "RingBuffer.h"
// Definition -----------------------------------------------------------------
-#define TIME_OUT 5 // 5 sec
-#define ADT_TIME 15 // 15 sec
+#define TIME_OUT 5 // 5 sec
+#define BF_SIZE_BLE 256
+#define BF_SIZE_PC 256
+#define BF_SIZE_LINE 32
// Object/ Constructor --------------------------------------------------------
Serial pc(USBTX,USBRX);
-Serial tyble16(PA_9, PA_10);
-BME280 bme280(I2C_SDA, I2C_SCL);
+Serial tyble16(D8, D2);
+DigitalIn tyble16_mode(D3);
+Ticker t;
+RingBuffer ble_bf(BF_SIZE_BLE);
+RingBuffer pc_bf(BF_SIZE_PC);
// RAM ------------------------------------------------------------------------
-bool state_connection = false;
-bool received_data = false;
-uint32_t cmd_timeout_cntr = ADT_TIME;
-Ticker t;
// ROM / Constant data --------------------------------------------------------
// Function prototypes --------------------------------------------------------
void check_connection(void);
-void parse_input(char *buf);
+void excute_command(char *);
+void ble_rx(void);
+void pc_rx(void);
//------------------------------------------------------------------------------
// Control Program
//------------------------------------------------------------------------------
-// special command for BME280 data collection
-bool excute_command(char *buf)
-{
- char c = buf[1];
- switch (c){
- case 'a': // All data
- case 'A':
- tyble16.printf("Pressure: %04.2f hPa\r\n",
- bme280.getPressure());
- tyble16.printf("Temperature: %2.2f degC\r\n",
- bme280.getTemperature());
- tyble16.printf("Humidity: %2.2f %%\r\n",
- bme280.getHumidity());
- break;
- case 'p': // Pressure
- case 'P':
- tyble16.printf("Pressure: %04.2f hPa\r\n",
- bme280.getPressure());
- break;
- case 't': // Temperature
- case 'T':
- tyble16.printf("Temperature: %2.2f degC\r\n",
- bme280.getTemperature());
- break;
- case 'h': // Humidity
- case 'H':
- tyble16.printf("Humidity: %2.2f %%\r\n",
- bme280.getHumidity());
- break;
- case '?': // Help
- tyble16.printf("Command syntax\r\n");
- tyble16.printf("@a All of data\r\n");
- tyble16.printf("@p Pressure\r\n");
- tyble16.printf("@t Temperature\r\n");
- tyble16.printf("@h Humidity\r\n");
- break;
- default: // no available command
- tyble16.printf("ommand not available, hit '@?'\r\n");
- break;
- }
- return true;
-}
-
int main()
{
- static char rcv_bf[128];
+ static char rcv_bf[BF_SIZE_LINE];
static uint8_t n = 0;
char c = 0;
- pc.printf("\r\n\r\nApplication for AE-TYBLE16 Module ");
- pc.printf(" Peripheral(Sever) side\r\n");
- pc.printf(" created on %s %s\r\n", __DATE__, __TIME__);
- tyble16.printf("I'm TYBLE16 module!\r\n");
- // warming up the sensor
- for (int n = 0; n < 6; n++){
- bme280.getPressure();
- bme280.getTemperature();
- bme280.getHumidity();
- }
+ tyble16.attach(&ble_rx, Serial::RxIrq); // Set interrupt handler
+ pc.attach(&pc_rx, Serial::RxIrq); // Set interrupt handler
+ pc.printf("\r\nUART/TYBLE16(%s, %s UTC)\r\n", __DATE__, __TIME__);
+ tyble16.printf("I'm TYBLE16\r\n");
t.attach(check_connection, 1);
while(true){
- while(tyble16.readable()){
- //----- data receive from Client -----------------------------------
- received_data = true;
- c = tyble16.getc(); // received data from client
+ while(ble_bf.check() != 0){
+ //----- receive data -----------------------------------------------
+ c = ble_bf.read(); // data received
pc.putc(c); // show to console
rcv_bf[n++] = c; // save int buf
+ // avoid buffer overflow
+ if (n >= (BF_SIZE_LINE - 5)){ n = (BF_SIZE_LINE - 5);}
if (c == '\n'){ // end one line
pc.putc('\r');
rcv_bf[n] = 0;
- if (n >3){
- parse_input(rcv_bf); // ckeck command or not
- /*for (int i=0;; i++){
- if (rcv_bf[i] == 0){break;}
- pc.printf("0x%x,", rcv_bf[i]);
- }*/
- if ((rcv_bf[0] == '@') && (rcv_bf[2] == '\r')){
- excute_command(rcv_bf); // BME280 data output
+ if (n >3){ // command ~?\r\n ?=specified one character
+ if ((rcv_bf[0] == '~') && (rcv_bf[2] == '\r')){
+ excute_command(rcv_bf);
}
}
n = 0; // Clear buffer
}
}
- while(pc.readable()){
- //----- data send to Client ----------------------------------------
- char c = pc.getc();
+ while(pc_bf.check() != 0){
+ //----- send data --------------------------------------------------
+ char c = pc_bf.read();
tyble16.putc(c);
pc.putc(c); // echo back
if(c == '\r'){ // if CR then put LF
@@ -157,41 +112,48 @@
}
}
-// Check Response Events
-void parse_input(char *buf)
+// special command (You can make your own commands)
+void excute_command(char *buf)
{
- if (strstr(buf, "CON")){ // Connection successful
- state_connection = true;
- } else if (strstr(buf, "DCO")){ // Disconnect
- state_connection = false;
- } else if (strstr(buf, "ADT")){ // Advertising Timeout
- state_connection = false;
- cmd_timeout_cntr = 0;
- } else if (strstr(buf, "NAK")){ // Failed
- state_connection = false;
- if (cmd_timeout_cntr == 0){
- // Both Advertising Start. Connectable and Discoverable.
- tyble16.printf("BCD3\r\n"); // send Advertising command
- cmd_timeout_cntr = ADT_TIME;
- }
+ char c = buf[1];
+ switch (c){
+ case 'x': // corrent -> nothing to do
+ tyble16.printf("Accept 'x' Command\r\n");
+ break;
+ case '?': // Help
+ tyble16.printf("Command not available\r\n");
+ tyble16.printf("Please set your own command\r\n");
+ break;
+ default: // no available command
+ tyble16.printf("Command not available\r\n");
+ break;
}
}
+// Interrupt routine / Data from BLE
+void ble_rx()
+{
+ ble_bf.save(tyble16.getc()); // BLE RX data save into ring buffer
+}
+
+// Interrupt routine / Data from PC
+void pc_rx()
+{
+ pc_bf.save(pc.getc()); // PC RX data save into ring buffer
+}
+
// Every one second, check communication status
void check_connection(void)
{
static int8_t counter = 0;
- if ((received_data == false) && (state_connection == false)){
+ if (tyble16_mode == 0){ // Not connected
if (++counter >= TIME_OUT){
- tyble16.putc('\n');
+ // Software reset
+ tyble16.puts("BRS\r\n");
counter = 0;
}
} else {
counter = 0;
}
- if (cmd_timeout_cntr != 0){
- --cmd_timeout_cntr;
- }
- received_data = false;
}
--- a/mbed-os.lib Sun Oct 29 23:25:26 2017 +0000 +++ b/mbed-os.lib Sun Nov 19 09:46:27 2017 +0000 @@ -1,1 +1,1 @@ -https://github.com/ARMmbed/mbed-os/#e62a1b9236b44e70ae3b0902dc538481c04d455b +https://github.com/ARMmbed/mbed-os/#78474a5129e18e136cc7e872adbaa5b74fbb8f6a