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Marcus Chang
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Update README.md
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‎README.md

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@@ -18,16 +18,18 @@ Supports:
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* %s: string.
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* %p: pointer (e.g. 0x00123456).
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## Enabling floating point and setting baud rate
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## Enabling floating point, 64 bit integers, new line conversion, and setting baud rate
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In mbed_app.json:
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```
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"target_overrides": {
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"*": {
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"platform.stdio-baud-rate": 115200,
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"minimal-printf.floating-point": true,
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"minimal-printf.floating-point-max-decimals": 10
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"platform.stdio-convert-newlines": false,
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"minimal-printf.enable-floating-point": false,
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"minimal-printf.set-floating-point-max-decimals": 6,
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"minimal-printf.enable-64-bit": true
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}
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}
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```
@@ -84,148 +86,12 @@ int main()
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}
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```
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### Full application size on K64F/GCC
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### K64F GCC minimal printf without floating point
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```
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+------------------------------------------+-------+-------+------+
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| Module | .text | .data | .bss |
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+------------------------------------------+-------+-------+------+
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| [fill] | 16 | 3 | 2102 |
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| [lib]/c.a/lib_a-init.o | 80 | 0 | 0 |
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| [lib]/c.a/lib_a-memcpy.o | 308 | 0 | 0 |
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| [lib]/c.a/lib_a-memset.o | 156 | 0 | 0 |
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| [lib]/misc/ | 248 | 4 | 28 |
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| main.o | 256 | 0 | 0 |
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| mbed-os/hal/mbed_gpio.o | 96 | 0 | 0 |
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| mbed-os/hal/mbed_pinmap_common.o | 212 | 0 | 0 |
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| mbed-os/hal/mbed_ticker_api.o | 214 | 0 | 0 |
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| mbed-os/hal/mbed_us_ticker_api.o | 44 | 0 | 24 |
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| mbed-os/platform/mbed_board.o | 90 | 0 | 0 |
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| mbed-os/platform/mbed_critical.o | 56 | 0 | 5 |
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| mbed-os/platform/mbed_error.o | 32 | 0 | 1 |
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| mbed-os/platform/mbed_retarget.o | 20 | 0 | 0 |
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| mbed-os/platform/mbed_sdk_boot.o | 74 | 0 | 0 |
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| mbed-os/platform/mbed_wait_api_no_rtos.o | 32 | 0 | 0 |
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| mbed-os/targets/TARGET_Freescale | 4758 | 12 | 384 |
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| mbed-printf/mbed_printf.o | 960 | 1 | 188 |
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| Subtotals | 7652 | 20 | 2732 |
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+------------------------------------------+-------+-------+------+
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Total Static RAM memory (data + bss): 2752 bytes
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Total Flash memory (text + data): 7672 bytes
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```
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### K64F GCC minimal printf with floating point
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```
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+------------------------------------------+-------+-------+------+
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| Module | .text | .data | .bss |
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+------------------------------------------+-------+-------+------+
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| [fill] | 24 | 3 | 2102 |
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| [lib]/c.a/lib_a-init.o | 80 | 0 | 0 |
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| [lib]/c.a/lib_a-memcpy.o | 308 | 0 | 0 |
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| [lib]/c.a/lib_a-memset.o | 156 | 0 | 0 |
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| [lib]/gcc.a/_arm_addsubdf3.o | 880 | 0 | 0 |
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| [lib]/gcc.a/_arm_fixdfsi.o | 80 | 0 | 0 |
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| [lib]/gcc.a/_arm_muldivdf3.o | 1060 | 0 | 0 |
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| [lib]/misc/ | 248 | 4 | 28 |
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| main.o | 256 | 0 | 0 |
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| mbed-os/hal/mbed_gpio.o | 96 | 0 | 0 |
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| mbed-os/hal/mbed_pinmap_common.o | 212 | 0 | 0 |
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| mbed-os/hal/mbed_ticker_api.o | 214 | 0 | 0 |
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| mbed-os/hal/mbed_us_ticker_api.o | 44 | 0 | 24 |
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| mbed-os/platform/mbed_board.o | 90 | 0 | 0 |
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| mbed-os/platform/mbed_critical.o | 56 | 0 | 5 |
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| mbed-os/platform/mbed_error.o | 32 | 0 | 1 |
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| mbed-os/platform/mbed_retarget.o | 20 | 0 | 0 |
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| mbed-os/platform/mbed_sdk_boot.o | 74 | 0 | 0 |
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| mbed-os/platform/mbed_wait_api_no_rtos.o | 32 | 0 | 0 |
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| mbed-os/targets/TARGET_Freescale | 4758 | 12 | 384 |
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| mbed-printf/mbed_printf.o | 1160 | 1 | 188 |
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| Subtotals | 9880 | 20 | 2732 |
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+------------------------------------------+-------+-------+------+
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Total Static RAM memory (data + bss): 2752 bytes
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Total Flash memory (text + data): 9900 bytes
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```
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### K64F GCC standard printf
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```
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+------------------------------------------+-------+-------+------+
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| Module | .text | .data | .bss |
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+------------------------------------------+-------+-------+------+
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| [fill] | 62 | 4 | 2071 |
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| [lib]/c.a/lib_a-callocr.o | 96 | 0 | 0 |
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| [lib]/c.a/lib_a-closer.o | 36 | 0 | 0 |
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| [lib]/c.a/lib_a-ctype_.o | 257 | 0 | 0 |
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| [lib]/c.a/lib_a-dtoa.o | 3948 | 0 | 0 |
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| [lib]/c.a/lib_a-errno.o | 12 | 0 | 0 |
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| [lib]/c.a/lib_a-fclose.o | 196 | 0 | 0 |
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| [lib]/c.a/lib_a-fflush.o | 404 | 0 | 0 |
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| [lib]/c.a/lib_a-findfp.o | 204 | 0 | 0 |
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| [lib]/c.a/lib_a-fputwc.o | 264 | 0 | 0 |
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| [lib]/c.a/lib_a-freer.o | 620 | 0 | 0 |
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| [lib]/c.a/lib_a-fstatr.o | 40 | 0 | 0 |
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| [lib]/c.a/lib_a-fvwrite.o | 752 | 0 | 0 |
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| [lib]/c.a/lib_a-fwalk.o | 84 | 0 | 0 |
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| [lib]/c.a/lib_a-impure.o | 0 | 1068 | 0 |
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| [lib]/c.a/lib_a-init.o | 80 | 0 | 0 |
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| [lib]/c.a/lib_a-isattyr.o | 36 | 0 | 0 |
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| [lib]/c.a/lib_a-locale.o | 42 | 364 | 0 |
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| [lib]/c.a/lib_a-localeconv.o | 28 | 0 | 0 |
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| [lib]/c.a/lib_a-lock.o | 16 | 0 | 33 |
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| [lib]/c.a/lib_a-lseekr.o | 44 | 0 | 0 |
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| [lib]/c.a/lib_a-makebuf.o | 240 | 0 | 0 |
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| [lib]/c.a/lib_a-mallocr.o | 1376 | 1040 | 52 |
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| [lib]/c.a/lib_a-mbtowc_r.o | 44 | 0 | 0 |
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| [lib]/c.a/lib_a-memchr.o | 160 | 0 | 0 |
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| [lib]/c.a/lib_a-memcpy.o | 308 | 0 | 0 |
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| [lib]/c.a/lib_a-memmove.o | 200 | 0 | 0 |
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| [lib]/c.a/lib_a-memset.o | 156 | 0 | 0 |
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| [lib]/c.a/lib_a-mprec.o | 1776 | 0 | 0 |
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| [lib]/c.a/lib_a-printf.o | 40 | 0 | 0 |
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| [lib]/c.a/lib_a-readr.o | 44 | 0 | 0 |
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| [lib]/c.a/lib_a-reallocr.o | 844 | 0 | 0 |
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| [lib]/c.a/lib_a-reent.o | 0 | 0 | 4 |
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| [lib]/c.a/lib_a-sbrkr.o | 36 | 0 | 0 |
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| [lib]/c.a/lib_a-snprintf.o | 152 | 0 | 0 |
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| [lib]/c.a/lib_a-stdio.o | 136 | 0 | 0 |
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| [lib]/c.a/lib_a-strlen.o | 220 | 0 | 0 |
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| [lib]/c.a/lib_a-svfiprintf.o | 252 | 0 | 0 |
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| [lib]/c.a/lib_a-svfprintf.o | 5370 | 0 | 0 |
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| [lib]/c.a/lib_a-vfiprintf.o | 148 | 0 | 0 |
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| [lib]/c.a/lib_a-vfprintf.o | 5754 | 0 | 0 |
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| [lib]/c.a/lib_a-wbuf.o | 176 | 0 | 0 |
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| [lib]/c.a/lib_a-wcrtomb.o | 84 | 0 | 0 |
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| [lib]/c.a/lib_a-wctomb_r.o | 28 | 0 | 0 |
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| [lib]/c.a/lib_a-writer.o | 44 | 0 | 0 |
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| [lib]/c.a/lib_a-wsetup.o | 200 | 0 | 0 |
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| [lib]/gcc.a/_aeabi_uldivmod.o | 48 | 0 | 0 |
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| [lib]/gcc.a/_arm_addsubdf3.o | 880 | 0 | 0 |
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| [lib]/gcc.a/_arm_cmpdf2.o | 272 | 0 | 0 |
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| [lib]/gcc.a/_arm_fixdfsi.o | 80 | 0 | 0 |
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| [lib]/gcc.a/_arm_muldivdf3.o | 1060 | 0 | 0 |
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| [lib]/gcc.a/_arm_unorddf2.o | 44 | 0 | 0 |
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| [lib]/gcc.a/_dvmd_tls.o | 4 | 0 | 0 |
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| [lib]/gcc.a/_udivmoddi4.o | 732 | 0 | 0 |
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| [lib]/misc/ | 248 | 4 | 28 |
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| main.o | 215 | 0 | 0 |
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| mbed-os/hal/mbed_gpio.o | 96 | 0 | 0 |
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| mbed-os/hal/mbed_pinmap_common.o | 212 | 0 | 0 |
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| mbed-os/hal/mbed_ticker_api.o | 214 | 0 | 0 |
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| mbed-os/hal/mbed_us_ticker_api.o | 44 | 0 | 24 |
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| mbed-os/platform/mbed_alloc_wrappers.o | 16 | 0 | 0 |
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| mbed-os/platform/mbed_board.o | 90 | 0 | 0 |
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| mbed-os/platform/mbed_critical.o | 56 | 0 | 5 |
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| mbed-os/platform/mbed_error.o | 32 | 0 | 1 |
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| mbed-os/platform/mbed_retarget.o | 646 | 4 | 266 |
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| mbed-os/platform/mbed_sdk_boot.o | 74 | 0 | 0 |
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| mbed-os/platform/mbed_wait_api_no_rtos.o | 32 | 0 | 0 |
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| mbed-os/targets/TARGET_Freescale | 4834 | 12 | 384 |
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| Subtotals | 34938 | 2496 | 2868 |
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+------------------------------------------+-------+-------+------+
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Total Static RAM memory (data + bss): 5364 bytes
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Total Flash memory (text + data): 37434 bytes
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```
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| | Floating point | 64 bit integers | Flash | RAM |
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| - | - | - | - | - |
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| mbed-printf | | | 7772 | 2752 |
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| mbed-printf | | X | 8708 | 2752 |
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| mbed-printf | X | | 10368 | 2752 |
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| mbed-printf | X | X | 11360 | 2752 |
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| std printf | X | X | 37354 | 5364 |

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