Abdelmalek BELLOULA / Mbed 2 deprecated mbed_blinko

TEST 485

Dependencies:   mbed RS485

Files at this revision

API Documentation at this revision

Revision 0:84c281baac9c, committed 2020-03-05

Comitter:
belloula
Date:
Thu Mar 05 10:28:10 2020 +0000
Commit message:
TEST UART 485

Changed in this revision

RS485.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RS485.lib	Thu Mar 05 10:28:10 2020 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/Allar/code/RS485/#6a8a69b660c2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Mar 05 10:28:10 2020 +0000
@@ -0,0 +1,35 @@
+  #include "mbed.h" 
+  #include <RS485.h>
+  Serial pc(USBTX, USBRX); 
+  RS485 RS485(p13,p14,p15); // Tx, Rx , !RE and DE MAX485 pin
+ 
+  DigitalOut ho(p15); // this pin should be connected to !RE and DE
+  typedef uint8_t byte;
+ 
+  byte regvalue[9];
+  //byte data[9] = {0x01,0x04,0x00,0x48,0x00,0x02,0xf1,0xdd};//your data
+  byte data[9] = {0x02,0x05,0x01,0x49,0x01,0x03,0xf2,0xde};//your data
+  int main()
+  {
+    pc.baud(115200);   
+    pc.printf("main\n");
+    while(1) {
+       pc.printf("Starting\n");
+       ho = 1;                  // Enable sending on MAX485
+       RS485.sendMsg(data,sizeof(data));
+       wait_ms(600);            // Must wait for all the data to be sent   
+       ho = 0;                  // Enable receiving on MAX485
+       pc.printf("Getting data\n");
+       if(RS485.readable() >0){
+           memset(regvalue,0,sizeof(regvalue));
+           wait_ms(200);
+           RS485.recvMsg(regvalue,sizeof(data),500);
+           wait_ms(200);
+           for (int count = 0; count < 9; count++) {
+               pc.printf("%X - ", regvalue[count]);
+           }
+       }else printf("No Data\n");
+       printf("Done\n");
+       wait_ms(1000);
+    }
+  } 
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Thu Mar 05 10:28:10 2020 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400
\ No newline at end of file