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Merge pull request #1473 from jamofer/master 

Issue #666  LPC1768 i2c_slave_read fix
pull/1477/head
Martin Kojtal 2015-12-14 08:38:30 +00:00
parent 1c75638d14 e7d879aaf6
commit eed91bce3b
1 changed files with 9 additions and 2 deletions
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11
libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC176X/i2c_api.c
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@ -350,11 +350,18 @@ int i2c_slave_read(i2c_t *obj, char *data, int length) {
count++; count++;
} while (((status == 0x80) || (status == 0x90) || } while (((status == 0x80) || (status == 0x90) ||
(status == 0x060) || (status == 0x70)) && (count < length)); (status == 0x060) || (status == 0x70)) && (count < length));
// Clear old status and wait for Serial Interrupt.
i2c_clear_SI(obj);
i2c_wait_SI(obj);
// Obtain new status.
status = i2c_status(obj);
if(status != 0xA0) { if(status != 0xA0) {
i2c_stop(obj); i2c_stop(obj);
} }
i2c_clear_SI(obj); i2c_clear_SI(obj);
return count; return count;