CCS10.0下TMS320F28335使⽤Printf函数的问题
使⽤Code Composer Studio  Version: 10.1.0.00010 ，建⽴TMS320F28335⼯程。
/*
* main.c
*/
#include <stdio.h>
int fputc(int ch, FILE *f)
{
while(ScibRegs.SCICTL2.bit.TXRDY == 0)；
ScibRegs.SCITXBUF=ch;
return ch;
}
int main(void) {
printf("Hello DSP!\r\n");
return0;
}
编译出错
"../d", line 66: error: program will not fit into available
memory, or the section contains a call site that requires a trampoline that
can't be generated for this section. run placement with alignment/blocking
fails for section ".stack" size 0x400page 1.  Available memory ranges:
RAMM1        size: 0x400        unused: 0x0          max hole: 0x0
查看d⽂件
PAGE 1 :  /* Data Memory */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE0 for program allocation */
/* Registers remain on PAGE1                                                  */
BOOT_RSVD  : origin = 0x000000, length = 0x000050/* Part of M0, BOOT rom will use this for stack */
RAMM0      : origin = 0x000050, length = 0x0003B0/* on-chip RAM block M0 */
RAMM1      : origin = 0x000400, length = 0x000400/* on-chip RAM block M1 */
函数printfRAML4      : origin = 0x00C000, length = 0x001000/* on-chip RAM block L1 */
RAML5      : origin = 0x00D000, length = 0x001000/* on-chip RAM block L1 */
RAML6      : origin = 0x00E000, length = 0x001000/* on-chip RAM block L1 */
RAML7      : origin = 0x00F000, length = 0x001000/* on-chip RAM block L1 */
PAGE1 为数据存储区
/* Allocate uninitalized data sections: */
.stack              : > RAMM1      PAGE = 1
.ebss              : > RAML5      PAGE = 1
.esysmem            : > RAMM1      PAGE = 1
stack段空间不够，修改为
/* Allocate uninitalized data sections: */
.stack              : > RAML4      PAGE = 1
.ebss              : > RAML5      PAGE = 1
.esysmem            : > RAML4      PAGE = 1
修改Printf⽀持，Level of printf/scanf support required(--printf_support)选择minimal
堆栈设置
编译通过，可以正常使⽤printf函数打印字符串，但还是⽆法使⽤%d等格式化输出功能，即使Level of printf/scanf support required(--printf_support)选择full也不⾏。
原因待查。。。

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。