diff options
| author | Marti Bolivar <mbolivar@leaflabs.com> | 2014-11-19 22:38:37 -0500 |
|---|---|---|
| committer | bryan newbold <bnewbold@twinleaf.com> | 2014-11-24 15:18:30 -0800 |
| commit | 53972f12b69a4979fb2f09d05c6661702eddf952 (patch) | |
| tree | 071f131e1b099bc0e180da704e8eab8564962cba /libraries/Wire | |
| parent | 4ad3b4e440f72264ceec77d3db6ed9ac6cb331da (diff) | |
| download | librambutan-53972f12b69a4979fb2f09d05c6661702eddf952.tar.gz librambutan-53972f12b69a4979fb2f09d05c6661702eddf952.zip | |
Wire: release the bus on error
Diffstat (limited to 'libraries/Wire')
| -rw-r--r-- | libraries/Wire/Wire.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libraries/Wire/Wire.cpp b/libraries/Wire/Wire.cpp index d646132..b08023d 100644 --- a/libraries/Wire/Wire.cpp +++ b/libraries/Wire/Wire.cpp @@ -128,6 +128,7 @@ uint8 TwoWire::process() { // shift out the address we're transmitting to i2c_shift_out(sla_addr); if (!i2c_get_ack()) { + i2c_stop(); // Fix up the state of the bus return ENACKADDR; } // Recieving @@ -146,6 +147,7 @@ uint8 TwoWire::process() { for (uint8 i = 0; i < itc_msg.length; i++) { i2c_shift_out(itc_msg.data[i]); if (!i2c_get_ack()) { + i2c_stop(); // Fix up the state of the bus return ENACKTRNS; } itc_msg.xferred++; |