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runtime/i2c_read: fix MSB

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Sebastien Bourdeauducq 2016-03-05 19:00:14 +08:00
parent f2b4b975a3
commit 125ab3e076
1 changed files with 1 additions and 1 deletions
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artiq/runtime/i2c.c
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@ -160,7 +160,7 @@ int i2c_write(int busno, int b)
int i2c_read(int busno, int ack) int i2c_read(int busno, int ack)
{ {
int i; int i;
char b; unsigned char b;
/* Set SCL low first, otherwise setting SDA as input may cause a transition /* Set SCL low first, otherwise setting SDA as input may cause a transition
* on SDA with SCL high which will be interpreted as START/STOP condition. * on SDA with SCL high which will be interpreted as START/STOP condition.