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Stupid Stupid USART
Hi guys, I'm having great difficulty finding why this USART does not work, it wont send the it not printing the test sting, "sms_print_string("AT+CMGF=1\r\n");". Maybe...
Monday, 3 July 2017 - 21:07
AT Command <ctrl z>
Hi guys, I'm sending SMS messages from a SIM900.  To send the text you have to press <ctrl z>.  How do I send such a command from USART?
Monday, 3 July 2017 - 16:56
Moving onto designing a TCP/IP Stack
Hi guys, I've started to write a TCP/IP Stack.  I only working with Ping at the moment.  However, I am limited to sending 1472 bytes.  Just wondering, is there a...
Thursday, 29 June 2017 - 22:08
MPU Stack Protection
Hi Guys, could some explain to me how this works?   mpu_enty->size = 0x011 mpu_entry->addr​, points to the stat address of 4K of memory // Check the base address: it...
Monday, 26 June 2017 - 23:38
USART Initialisation Failure
He guys, when I initialise a USART to receive incoming GPS NMEA characters it freazes the system SOMETIMES.  The Initalisation is as follows: Maybe it is receiving a...
Friday, 23 June 2017 - 02:51
ctrl z
Hi freaks, I need to send the control character z <CTRL-Z> in a string out a serial port.  the decimal value is 26.  Could someone advise me how this is achieved...
Saturday, 3 June 2017 - 05:49
How Long is long
Is unsigned long = 0xffff ffff ffff ffff   so is unsigned long long = 0xffff ffff ffff ffff ffff ffff ffff ffff​   Thanks
Sunday, 28 May 2017 - 19:10
MPU Stack Protection
Hi guys, when trying to setup the MPU to protect the Stack I get an error unless the size I specify is the same as the linker variable __stack_size__   region_size_value = (...
Wednesday, 10 May 2017 - 12:06
Can Anyone Identify V0-V4 on this poor schematic SOLVED
https://www.aliexpress.com/store...   Thanks Lads. IRF540
Monday, 1 May 2017 - 21:32
\n\r control characters
Hi guys, I'm having trouble parsing the control characters in a simple test program.  See my code below:   void scroll_text(char * text){      ...
Thursday, 13 April 2017 - 22:41
microSD FAT32
    Hi freaks, trying to setup a FAT32 microSD card.  I've ported the ASF example of the AT45DBXX to sd_mmc, i.e. I have initialised the microSD SPI instead of the...
Wednesday, 12 April 2017 - 17:54
dataFlash Module SPI
Hi freaks, I've been browsing the Internet looking for a dataFlash Module.  I need the largest possible but can only find 128MBit Modules.  So could any of you freaks...
Tuesday, 11 April 2017 - 19:00

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