Diff: MCP/MCP.cpp

Revision:

2:32d2cd7d744b

Parent:

1:5b0303768126

Child:

6:cd2671c141cc

diff -r 5b0303768126 -r 32d2cd7d744b MCP/MCP.cpp
--- a/MCP/MCP.cpp	Tue Jan 21 11:10:33 2020 +0000
+++ b/MCP/MCP.cpp	Thu Jan 23 09:16:38 2020 +0000
@@ -6,7 +6,7 @@
     :i2c(sda, scl), mcp(i2c, device_address) 
 {
     _iodir_data.all = 0xffff;
-    _pull_data.all  = 0x0000;
+    _pull_data.all  = 0xffff;
     _read_data.all  = 0x0000;
     _write_data.all = 0x0000;
 }
@@ -37,14 +37,20 @@
     return (_read_data.all >> pin) & 0x01;
 }
         
-void MCP::Update(void)
-{
+void MCP::Update(void) {
+    char data[2] = {GPPUA, 0xff};
+    int lost = i2c.write(0x40, data, 2);
+    if(lost) {
+        i2c.start();
+    }
     mcp.direction(PORT_A, _iodir_data.port.port_A);
     mcp.direction(PORT_B, _iodir_data.port.port_B);
     mcp.configurePullUps(PORT_A, _pull_data.port.port_A);
     mcp.configurePullUps(PORT_B, _pull_data.port.port_B);
     _read_data.port.port_A = mcp.read(PORT_A);
     _read_data.port.port_B = mcp.read(PORT_B);
-   // mcp.write(PORT_A, _write_data.port_A);
-   // mcp.write(PORT_B, _write_data.port_B);
+    mcp.write(PORT_A, _write_data.port.port_A);
+    mcp.write(PORT_B, _write_data.port.port_B);
+    
 }
+    
\ No newline at end of file