programmer007
Newbie level 1
Hello everyone,
I recently started project with ARMSAM7 microcontroller and ublox GPS receiver working on i2c bus.
I'm using TWI drivers and free RTOS.
Problem is following:
I have to configure some parameters on GPS module and after that to
poll some messages.
After writing configuration message toward GPS module it passes ok on physical layer (used multiple bytes writing as in ARM7 datasheet), but
GPS receiver has to return ACK message or NACK message upon reception of configuration message.
There is nothing from GPS. However, I can read some periodic data from it, so read function works.
Any help or idea.
I recently started project with ARMSAM7 microcontroller and ublox GPS receiver working on i2c bus.
I'm using TWI drivers and free RTOS.
Problem is following:
I have to configure some parameters on GPS module and after that to
poll some messages.
After writing configuration message toward GPS module it passes ok on physical layer (used multiple bytes writing as in ARM7 datasheet), but
GPS receiver has to return ACK message or NACK message upon reception of configuration message.
There is nothing from GPS. However, I can read some periodic data from it, so read function works.
Any help or idea.
