I'm a beginner in ARM programming. Please tell me how to use mdk-arm middleware.
Used cpu : STM32F407IGT6 Used Development Environment : MDK-ARM Ver5.22
I want to operate the SD card using file system. The return value of "finit" is "fsok". However, the return value of "fmount" is "fsNoMedia". Please tell me why it will be "fsNoMedia".
The circuit connection is as follows cpu 117(SDIO_D0) - SD 7(DATA0) pull-up resistor 22k cpu 118(SDIO_D1) - SD 8(DATA1) pull-up resistor 22k cpu 139(SDIO_D2) - SD 9(DATA2) pull-up resistor 22k cpu 140(SDIO_D3) - SD 1(DATA3) pull-up resistor 22k cpu 141(SDIO_CK) - SD 5(CLK) cpu 144(SDIO_CMD) - SD 2(CMD) pull-up resistor 22k
Is it too obvious to suggest that you might try studying the documentation ... ?
www2.keil.com/.../learn
http://www.keil.com/support/man_arm.htm
http://www.keil.com/support/
"I'm a beginner in ARM programming."
Do you have any other experience in any other type of programming?
Do you have any experience with any other type of microcontroller?
some Getting Started tips for microcontrollers: www.avrfreaks.net/.../1138166