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  1. help950

    I2C Issue

    Hi, I'm using the latest Code Composer Studio (v5.5.0.0007), with the stellaris board, having an issue with the I2C. I'm trying to write to an EEPROM chip. I have succeeded in writing to address 0x0000 and 0x0001, and reading the same addresses (2-byte Addressing). (EEPROM = 24AA64). With the same api, trying to talk to any other register within the EEPROM, I fail to write, but believe I succeed in reading (returns 0xFF, not 0- which would indicate ACK error). Stepping through the program I notice that the data register on some iterations is never changed. E.g. I2C_MDR will stick at wh
  2. Hey, I'm using the LM4F120H5QR, with CCS. I've encountered the same error as you describe above 'Description Resource Path Location Type #20 identifier "GPIO_PA1_U0TX" is undefined main.c /SecondUartTest line 101 C/C++ Problem' I've added the following to the Predefined Symbols tab: 'PART_LM4F120H5QR', 'TARGET_IS_BLIZZARD_RA1' (tried RB1 as well) I am still getting the error. I've tried using energia and I can get the other UARTs to work. I've also tried looking through the include files for a reference to GPIO_PA1_U0TX, as I guess this is just a memory location, but I can't find it
  3. help950


    Hi, I'm having a lot of issues trying to get the ButtonsPoll() function working as recommended at the end of tutorial 3 from TI. I've done the first 3 lab instruction videos, followed the guidance on http://unboxnbeyond.wordpress.com/2013/04/14/using-button-h-for-inbuilt-buttons/#more-166, and also followed the guidance on a previous topic: http://forum.stellarisiti.com/topic/577-polling-a-switch/ . I think I've managed to set the include options to the right place, they are identical to the first link, same with the file search paths, and set the macros ( compliler|advanced options|predefined
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