Mirror/betaflight
1
0
Fork 0
mirror of https://github.com/betaflight/betaflight.git synced 2025-07-13 03:20:00 +03:00
Code Issues Wiki Activity

removed data copying in i2c write - this wasn't needed, we'll see if rabbit2 "developers" will "fix" this bug too.

Browse source 
git-svn-id: https://afrodevices.googlecode.com/svn/trunk/baseflight@349 7c89a4a9-59b9-e629-4cfe-3a2d53b20e61
This commit is contained in:
timecop@gmail.com 2013-06-19 06:45:39 +00:00
parent ab75f221bb
commit c6b43776e4
1 changed files with 2 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

13
src/drv_i2c.c
View file

@ -31,7 +31,6 @@ void I2C2_EV_IRQHandler(void)
i2c_ev_handler(); i2c_ev_handler();
} }
#define I2C_DEFAULT_TIMEOUT 30000 #define I2C_DEFAULT_TIMEOUT 30000
static volatile uint16_t i2cErrorCount = 0; static volatile uint16_t i2cErrorCount = 0;
@ -79,26 +78,18 @@ static void i2c_er_handler(void)
bool i2cWriteBuffer(uint8_t addr_, uint8_t reg_, uint8_t len_, uint8_t *data) bool i2cWriteBuffer(uint8_t addr_, uint8_t reg_, uint8_t len_, uint8_t *data)
{ {
uint8_t i; uint8_t i;
uint8_t my_data[16];
uint32_t timeout = I2C_DEFAULT_TIMEOUT; uint32_t timeout = I2C_DEFAULT_TIMEOUT;
addr = addr_ << 1; addr = addr_ << 1;
reg = reg_; reg = reg_;
writing = 1; writing = 1;
reading = 0; reading = 0;
write_p = my_data; write_p = data;
read_p = my_data; read_p = data;
bytes = len_; bytes = len_;
busy = 1; busy = 1;
error = false; error = false;
// too long
if (len_ > 16)
return false;
for (i = 0; i < len_; i++)
my_data[i] = data[i];
if (!(I2Cx->CR2 & I2C_IT_EVT)) { //if we are restarting the driver if (!(I2Cx->CR2 & I2C_IT_EVT)) { //if we are restarting the driver
if (!(I2Cx->CR1 & 0x0100)) { // ensure sending a start if (!(I2Cx->CR1 & 0x0100)) { // ensure sending a start
while (I2Cx->CR1 & 0x0200) { ; } //wait for any stop to finish sending while (I2Cx->CR1 & 0x0200) { ; } //wait for any stop to finish sending